create a new variable based on other variables rcreate a new variable based on other variables r

In the example above, you would click the If button and choose Include if case satisfies condition. the third parameter. Basically, I want to simplify the information about education of parents, that is split between father and mother, and create a new one, that takes in account the highest level of education of the parents. DATA LIST / var1 1-1 var2 3-3. Code: gen x=0 local n= _N forvalues i=1/`n' { local p2 = p2 [`i'] count if AID== "`p2'" replace x = `r (N)' in `i' } Stata/MP 14.1 (64-bit x86-64) library (dplyr) df %>% mutate (new_var = case_when (var1 < 25 ~ 'low', var2 < 35 ~ 'med', TRUE ~ 'high')) IF ((var1 = 2) & (var2 = 0)) newvar=1. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. There is a pull-down menu of algebraic functions that you may use Assign values based on NA in other two variables of a data frame, Add a column based on the values of other two columns in the same data frame in r, data frame set value based on matching specific row name to column name, R: new variable values based on factor levels of another variable. No results were found for your search query. Is lock-free synchronization always superior to synchronization using locks? categories of the category variable into four using recode() and if_else(). Then I recommend watching the following video of my YouTube channel. How can the mass of an unstable composite particle become complex? Add new columns (sepal_by_petal_*) by preserving existing ones: Add new columns (sepal_by_petal_*) by dropping existing ones: We start by creating a demo data set, my_data2, which contains only numeric columns. ** var1 and var2 to determine the value to give newvar. Please refer to this guide for thorough information regarding these functions. This can result in a fair amount of repitition How to create a new variable based on existing columns of a data frame in the R programming language. To learn more, see our tips on writing great answers. The square brackets [ ] (further described in Section 7 below) are used to indicate that an operation is restricted to cases that meet the condition in the brackets. 3 Eastern Asia 5.672000 6 Making statements based on opinion; back them up with references or personal experience. the NAFTA countries. : Additional arguments for the function calls in .funs. Launching the CI/CD and R Collectives and community editing features for How to generate variable based on conditions of two other - generic formulae, R programming student's newman keul's test with GAD package, R - Keep first observation per group identified by multiple variables (Stata equivalent "bys var1 var2 : keep if _n == 1"), Merging columns of dataset when they have diff number of rows, Calculate duration of a response with R and dplyr? The Numeric Expression window is used for a value or formula. This means that rows 741-746 would populate as 5 under the abor_rest column. The recode() function does a test of equality to the Note that, the dot . represents any variables. r - Create new variable based on other variables - Stack Overflow Create new variable based on other variables Ask Question Asked 4 years, 3 months ago Modified 4 years, 3 months ago Viewed 643 times 1 Working in R, I have a data frame with three variables that look like this: 1 1 Click the If button if you want to set a condition for when this value should be assigned to the new variable. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Factor variables are used to represent categorical Let me know in the comments below, in case you have additional questions. in the Target Variable window, type the new value in the Numeric Expression window, then click on the If button. function to convert a numeric variable to I'm very new to R (and coding in general), and I'm using RStudio. You can also change the value in an existing variable for a subset of cases. COMPUTE newvar=0. More details: https://statisticsglobe.com/add-new-varia. Then it computes newvar based on what the values of var1 and var2 are. How to increase the number of CPUs in my computer? The output of the previous syntax is shown in Table 3. This tutorial describes how to compute and add new variables to a data frame in R. You will learn the following R functions from the dplyr R package: mutate (): compute and add new variables into a data table. This example used case_when() to recode the Copyright Statistics Globe Legal Notice & Privacy Policy, Example 1: Create New Variable Based On Other Columns Using $ Operator, Example 2: Create New Variable Based On Other Columns Using transform() Function. In the following sections, well present only the variants of mutate(). Not the answer you're looking for? Your email address will not be published. I created a new variable this way: dataset$newvar <-"NA" How to do the following: I want newvar to take the value 1 if factor1>=5 and factor2<19 and (factor3="b" or factor3="c") and factor4 is different from missing and newvar is equal to missing The if_else() function takes three parameters. You can change an existing variable with eval or binding.local_variable_set. Hover over a variable in the Data Sets tree and click on + > Custom Code > R - Text. How to calculate new variable based on values of other variables? DATA LIST / var1 1-1 var2 3-3. parameter name. Asking for help, clarification, or responding to other answers. data_new2 <- data # Duplicate example data The function `%>%` is available in the magrittr package, which is automatically loaded by tidyverse. Hello, I get the error message could not find function %>% when I try to run the code. It was possible in Ruby 1.8 though with eval 'x = 2'. Often you may want to create a new variable in a data frame in R based on some condition. The transmute() variants can be used similarly. The set of four commands assign the values 1 through 4 to the appropriate age groups. The following code uses the base R factor() function Furthermore, you might want to have a look at the related articles of this website. Color individual contributions bar graph with Learn more about bar, log, color MATLAB. Launching the CI/CD and R Collectives and community editing features for Rename a sequence of variable names in data frame. The variables for which .predicate is or returns TRUE are selected. However I have problems with your code lines at this step. Change the first line to, R code: how to generate variable based on multiple conditions from other variables, The open-source game engine youve been waiting for: Godot (Ep. All Rights Reserved. This new variable consists of the sum values of our two other variables. The conditions are checked in order. Conditionally changing the values of a variable. Otherwise it set the price to earning ratio to zero. How do I select rows from a DataFrame based on column values? Should I include the MIT licence of a library which I use from a CDN? I created a new column var (all_bis) using mutate () to add to existing ones to my database (roma_obs) . Usually the operator *for multiplying, +for addition, -for subtraction, and /for division are used to create new variables. Could anyone help? Have a look at the following R code and its output: data_new1 <- data # Duplicate example data Ackermann Function without Recursion or Stack, Applications of super-mathematics to non-super mathematics. Has Microsoft lowered its Windows 11 eligibility criteria? Do you have suggestions how to overwrite existing db in Excel with the new one including the new var?? You can merge columns, by adding new variables; or you can merge rows, by adding observations. Acceleration without force in rotational motion? The base R summary() function calculates the five number Variables are always added horizontally in a data frame. In Example 1, Ill illustrate how to append a new column to a data frame using other columns by applying the $ operator in R. More precisely, we create a new variable that contains the sum of the first and of the second column. The Transform menu has an item called Compute Variable. How to convert a data frame into two column data frame with values and column name as variable in R? I realize I was struggling to understand the pipe concept. You can specify the condition (such as GENDER=1 or RACE=1 AND REGION=3) and then click on the Continue Button. Views expressed here are supported by a university or a company. EXE. IF ((var1 = 1) & (var2 = 1)) newvar=1. Create a log-log plot containing two lines, and return the line objects in the variable lg. Its worth noting that the is.na() function can also be used to explicitly assign strings to NA values. Fortunately this is easy to do using the mutate () and case_when () functions from the dplyr package. Why does the Angel of the Lord say: you have not withheld your son from me in Genesis? Using the code below we are adding new columns: Or we can merge datasets by adding columns when we know that both datasets are correctly ordered: To add rows use the function rbind. Its not virtual, you need to create a new R object to hold the modified data frame; then, you can save or manipulate the data again. This tutorial illustrates how to create a new variable based on existing columns of a data frame in R. data <- data.frame(x1 = 3:8, # Create example data However, I don't fully understand what the second part of your script does (i.e. To do so, well remove the column Species as follow: The functions mutate_all() / transmute_all(), mutate_at() / transmute_at() and mutate_if() / transmute_if() can be used to modify multiple columns at once. Thanks for helping me. Does Cosmic Background radiation transmit heat? Find centralized, trusted content and collaborate around the technologies you use most. enclosed in backticks, ```. This example uses a simple mathematical formula Date last modified: August 3, 2016. If yes, please make sure you have read this: DataNovia is dedicated to data mining and statistics to help you make sense of your data. Variable are changed by using the name of variable as a In logical expressions, two equal signs are needed for 'is equal to'. rev2023.3.1.43269. How to create a subset of an R data frame based on multiple columns? The data frame is typically piped in and the data frame name To create a new variable (for example, total) from the transformation of existing variables (for example, the sum of v1, v2, v3, and v4 ), use: gen total = v1 + v2 + v3 + v4. DataScience+ works or receives funding from a company or organization that would benefit from this article. When and how was it discovered that Jupiter and Saturn are made out of gas? factor variable. I could not use the rename () function as I did not really understand its use (perhaps it is needed in case I want to replace a var rather than adding a new one?). IF ((var1 = 2) & (var2 = 2)) newvar=3. new categories. The syntax below first generates a sample data file. The value in the quality column is high if the value in the points column is greater than 120. > now i want to sort x descending .. i tried : You define a set bins to sort the values into. How can I change a sentence based upon input to a command? I had a question about how create a new variable, that is an average value of another variable (but based on the level of a third variable). It is what will be done if none of the prior conditions Fortunately this is easy to do using the mutate() and case_when() functions from the dplyr package. How to create a new variable based on existing columns of a data frame in the R programming language. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. How to create new variables using all possible subtractions combinations of the original ones in R? number of TRUE and FALSE values in the variable. to create a new variable based on the value of rev2023.3.1.43269. Given that var1 is at first position, var2 in second and so on, then you can use max.col along with an ifelse to catch your last condition, i.e. How do I create a new variable column based on the mean values of amb1, amb2, and amb3? I used the write_xls () for excel fileswithout success (Error in is.data.frame(x) : object roma_obs_bis not found). How to generate QR codes with R and publish with R Markdown, Graphical Presentation of Missing Data; VIM Package, How to create a loop to run multiple regression models, Map the Life Expectancy in United States with data from Wikipedia, Visualizing obesity across United States by using data from Wikipedia. Often you may want to create a new variable in a data frame in R based on some condition. 542), How Intuit democratizes AI development across teams through reusability, We've added a "Necessary cookies only" option to the cookie consent popup. This bit of the question was not explicitly addressed: A simple solution would be to use case_when. VAR1 * VAR2 or (VAR3 * VAR4)/ 5.5 ) Get regular updates on the latest tutorials, offers & news at Statistics Globe. The case when() function created the values for the new column in the following way. Creating new variables Use the assignment operator <- to create new variables. This example demonstrates two functions that can IF ((var1 = 1) & (var2 = 0)) newvar=0. END DATA. Best GGPlot Themes You Should Know Data Science Tutorials. Find centralized, trusted content and collaborate around the technologies you use most. United States valid variable and parameter name, since it The new var is the difference between two vars (see code below). each bin. 1 Like martin.R May 22, 2019, 3:54pm #2 recreate a new variable. the set of values on the right. The first is the condition. Creating a new variable. Change the Structure to Nominal (since we are creating a categorical variable). then newvar=3. Try the function arrange() [in dplyr package]. I would be very interested to know how you will process this data, so that I can learn about the . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Required fields are marked *. A numeric expression can be a specific value (e.g. Test it to make sure that it does what you want. Create new variables from existing variables in R?. Ruby -- use a string as a variable name to define a new variable. 4 Latin America and Caribbean 5.950136 22 I need to save the new column var (all_bis) to either the existing (roma_obs) or a new database (roma_obs_bis) in excel (would be better the first solution). The %in% operator is used to determine if For example, creating a total score by summing 4 scores: > totscore <- score1+score2+score3+score4 * , / , ^ can be used to multiply, divide, and raise to a power (var^2 will square a variable). Statology Study is the ultimate online statistics study guide that helps you study and practice all of the core concepts taught in any elementary statistics course and makes your life so much easier as a student. Partner is not responding when their writing is needed in European project application, Centering layers in OpenLayers v4 after layer loading. Merge dataset1 and dataset2 by variable id which is same in both datasets. { %>% I need to color 'surf' plots on a log scale and subsequently displace the log-based colorbar. This tutorial shows several examples of how to use these functions with the following data frame: The following code shows how to create a new variable called scorer based on the value in the points column: The following code shows how to create a new variable called type based on the value in the player and position column: The following code shows how to create a new variable called valueAdded based on the value in the points and rebounds columns: How to Rename Columns in R The table of content is structured as follows: 1) Example: Create Variable Name with paste0 () & assign () Functions 2) Video, Further Resources & Summary or a scalar value. In case that datasets doesn't have a common variable use the function cbind. isnt transmute() rather than transmutate()? Do you have any questions, post comment below? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. a factor variable. Please can you advice what to do? The following is the fundamental syntax for this function. return to top | previous page | next page, Content 2016. IF ((var1 = 2) & (var2 = 1)) newvar=2. the true value will be used, this value is replace with the parameter value. It preserves existing variables. Now we will create a new variable called totcosts as showing below: Now we are interested to rename and recode a variable in R. Using dataset above we rename the variable: Or we can also delete the variable by using command NULL: Here is an example how to recode variable patients: For recoding variable I used the function ifelse(), but you can use other functions as well. Search results are not available at this time. The following code uses cut() to divide profits 1) Figure out whether you want this new column in the data model (on the lowest, atomic level of data) or in the UI (aggregated numbers, recalculated based on the user selection) 2) Figure out what the expression should be. data.table vs dplyr: can one do something well the other can't or does poorly? mutate(all_bis = roma_obs$all roma_obs$all_0_30) %>% We loop over each observation of p2, and ask Stata to count the number of cases where AID is equal to that value of p2. Applications of super-mathematics to non-super mathematics. Connect and share knowledge within a single location that is structured and easy to search. 2 1 Merging datasets means to combine different datasets into one. two other variables. Although this approach is suitable for straight-in landing minimums in every sense, why are circle-to-land minimums given? (strictly) positive number. Will make sure to provide better data next time I post. Normally, you just need to load the tidyverse package. A wide array of operators and functions are available here. by the labels parameter. I have seen other questions like this that use the ifelse statement, but this would be extremely insufficient since the new variable is based on 32 other variables. Learn more about us. However, this time we have used the transform function to create a new variable based on already existing columns. 1st Qu. How to create a new variable based on conditions of previous variables in R? I am doing a meta-analysis with my dataset, metacomplete_, and I'm trying to average effect-sizes (variable: *_selectedES.prepost_*) into one value per paper (variable Paper#). 12), an equation (e.g. Click the If button if you want to set a condition for when this value should be assigned to the new variable. Otherwise the false value will be used, I have released several other articles already. Create Variable Name Using paste () Function in R (Example) In this tutorial you'll learn how to create a new variable using the paste () function in the R programming language. as well as a keypad to insert numbers and arithmetic signs (such as "=" or ">"). Data Science Tutorials. mutate (mscstart, amb = (amb1 + amb2 + amb3)/3) Thanks! Many research studies involve some data management before the data are ready for statistical analysis. Working in R, I have a data frame with three variables that look like this: I want to add a fourth variable (var4) whose value will be based on the value of the original three variables (var1, var2, var3) in the following way: I'm confident that there is a simple way to this, but I can't figure it out since I'm pretty new to R. Any suggestions on how to do it? Thanks for contributing an answer to Stack Overflow! By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. the. The code you send seems neat but does not work. I want newvar to take the value 1 if factor1>=5 and factor2<19 and (factor3="b" or factor3="c") and factor4 is different from missing and newvar is equal to missing. If var1=2 and var2=2 How can I recognize one? Have a look at the previous table. contains a space. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. This is done using the break parameter. into low, mid, high, and very high bins. To learn more, see our tips on writing great answers. The condition would be ((var1 = 1) & (var2 = 1)) for example. Or for a study examining age of a group of patients, we may have recorded age in years but we may want to categorize age for analysis as either under 30 years vs. 30 or more years. To create a new variable or to transform an old variable into a new one, usually, is a simple task in R. The common function to use is newvariable - oldvariable. But, perhaps something like this using dplyr. Need more help? If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? sort( x, decreasing = TRUE) } For example, I cannot apply the rename function. Its worth noting that TRUE is the same as an else expression. Create New Variables in R with mutate () and case_when () Often you may want to create a new variable in a data frame in R based on some condition. Visit the IBM Support Forum, Modified date: The names given to each of these bins is set EXE. Categories of string variables can be combined The pull() function returns a vector from a data frame. The following R codes is again using the assign function, but this time within a for-loop. Although this approach is suitable for straight-in landing minimums in every sense, why are circle-to-land minimums given? I am pretty new to R When one wants to create a new variable in R using tidyverse, dplyr's mutate verb is probably the easiest one that comes to mind that lets you create a new column or new variable easily on the fly. the set of values on the left is in You can compute a new variable such as newvar in the example above by entering newvar in the Target Variable window. An alternative to the R syntax shown in Example 1 is provided by the transform function. In the Object Inspector change the Label to something like New Groups. EXECUTE. Method - Using Indexing When using indexing to create a new variable, the category criteria appear inside brackets that select which data meets the criteria. An advantage of the assign function is that we can create new variables based on a character string. Fortunately this is easy to do using the, #define new variable 'scorer' using mutate() and case_when(), #define new variable 'type' using mutate() and case_when(), #define new variable 'valueAdded' using mutate() and case_when(), How to Find the Maximum Value by Group in R, How to Calculate The Interquartile Range in Python. Replace each value in a column with the largest value based on a condition in R data frame. R can be used for these data management tasks. The following code demonstrates how to make a new variable named quality with values generated from the points column. Read more at: https://www.datanovia.com/en/lessons/reorder-data-frame-rows-in-r/. How to Remove Columns in R Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. on the condition of the variable (or possibly another variable.). the second parameter. This article describe how to add new variable columns into a data frame using the dplyr functions: mutate(), transmute() and variants. Centering layers in OpenLayers v4 after layer loading +for addition, -for,! Commands assign the values into determine the value in a data frame in R data frame in the quality is. I used the transform function questions tagged, Where developers & technologists share private with! And community editing features for Rename a sequence of variable names in data frame problems with code! The write_xls ( ) function created the values into operator & lt -. ( var1 = 2 ) & ( var2 = 1 ) ) newvar=1 vs dplyr: can do... Condition ( such as `` = '' or `` > '' ) I Include the MIT licence a... Values of our two other variables ; user contributions licensed under CC.! Url into your RSS reader learn more, see our tips on writing great answers roma_obs_bis not )! Simple mathematical formula Date last modified: August 3, 2016 % when try. | previous page | next page, content 2016 a vector from a.... To synchronization using locks technologies you use most which is same in both datasets 3-3. name... Company or organization that would benefit from this article personal experience GGPlot Themes you should know data Tutorials... Questions, Post comment below set bins to create a new variable based on other variables r the values of and... Summary ( ) to add to existing ones to my database ( roma_obs ) is structured and to. And parameter name, since it the new var? always added in... Is not responding when their writing is needed in European project application, Centering layers in OpenLayers v4 after loading! The mass of an unstable composite particle become complex merge dataset1 and by! I would be to use case_when = TRUE ) } for example condition! Time we have used the write_xls ( ) Angel of the variable. ) ; user contributions licensed CC... Does not work object roma_obs_bis not found ) ) newvar=2 +for addition, -for subtraction, /for. Adding new variables using all possible subtractions combinations of the question was not explicitly addressed: a simple solution be! ) newvar=3 case you have suggestions how to create a new variable the... Else Expression and var2=2 how can I recognize one function returns a vector from a company possible subtractions of. Sense, why are circle-to-land minimums given you will process this data so... The line objects in the example above, you agree to our terms of service, privacy policy and policy! Condition of the question was not explicitly addressed: a simple solution would be to use case_when help clarification. It was possible in Ruby 1.8 though with eval or binding.local_variable_set fileswithout success ( error in is.data.frame x. Them up with references or personal experience new column var ( all_bis ) using mutate ( ) case_when! Available here to define a set bins to sort x descending.. I tried: have! Before the data are ready for statistical analysis from existing variables in R Site design logo. The transform function ) ) newvar=2 if button value ( e.g suitable for straight-in landing minimums in every sense why... May 22, 2019, 3:54pm # 2 recreate a new variable in R? dataset1 and by! Agree to our terms of service, privacy policy and cookie policy number of TRUE and FALSE in. Find centralized, trusted content and collaborate around the technologies you use most the syntax below first generates a data. The IBM Support Forum, modified Date: the names given to each of these bins is set.... ) [ in dplyr package below, in case that datasets does n't have a variable... To synchronization using locks R based on conditions of previous variables in R on! Can change an existing variable with eval & # x27 ; combine different datasets into.. Base R summary ( ) function created the values 1 through 4 to the Note,! ) ) newvar=1, decreasing = TRUE ) } for example, I have several... For statistical analysis value is replace with the largest value based on existing of! Openlayers v4 after layer loading when and how was it discovered that Jupiter Saturn! However I have problems with your create a new variable based on other variables r lines at this step Reach developers & technologists share private with. Code below ) the pull ( ) function calculates the five number variables are added. Following code demonstrates how to increase the number of CPUs in my computer explicitly assign strings to NA.... Frame in R based on the if button and choose Include if case satisfies condition in Table.. A categorical variable ) would click the if button and choose Include if case satisfies condition ).. Can the mass of an R data frame set the price to earning ratio zero! From the points column is high if the value in the Target variable window, then click the... Have suggestions how to create a subset of cases overwrite existing db Excel. Value based on what the values 1 through 4 to the new value in an existing variable for subset. Not found ) but this time within a single location that is structured and to! The Numeric Expression window is used for these data management tasks the new value in variable! Given to each of these bins is set EXE clicking Post your Answer, would! Trusted content and collaborate around the technologies you use most 6 Making statements based on existing columns, Centering in. Generates a sample data create a new variable based on other variables r RSS reader all possible subtractions combinations of the category variable into four recode. Statistical analysis, I have problems with your code lines at this step a character string our of. Variables can be used to create a new variable in R? after layer loading amb2 + amb3 /3... Item called Compute variable. ) dplyr package a variable name to define a new variable named quality with and! Suggestions how to convert a data frame in R Site design / logo 2023 Exchange. Regarding these functions to define a set bins to sort the values for the new one the... 3, 2016 have Additional questions more about bar, log, MATLAB... Video of my YouTube channel conditions of previous variables in R based on a character string since we creating. And very high bins RACE=1 and REGION=3 ) and case_when ( ) and if_else ( for. Returns TRUE are selected to explicitly assign strings to NA values and share knowledge within for-loop. Window is used for these data create a new variable based on other variables r tasks August 3, 2016 share... Existing ones to my database ( roma_obs ) codes is again using the (... Recreate a new variable consists of the sum values of var1 and var2 to determine the in. Points column package ] the largest value based on what the values 1 4! Some data management tasks used similarly in my computer learn more, see our on! And how was it discovered that Jupiter and Saturn are made out of gas provide better data time. And easy to do using the assign function is that we can create new variables ; or you can be. Time we have used the transform menu has an item called Compute variable. ) a. How you will process this data, so that I can learn about the datasets means combine. Have problems with your code lines at this step category variable into four using (! Replace each value in an existing variable for a subset of an unstable composite particle become complex addition -for! Function % > % when I try to run the code be ( ( var1 2! The write_xls ( ) function calculates the five number variables are used to explicitly assign strings to values! Using all possible subtractions combinations of the previous syntax is shown in Table 3 to our terms service... A subset of an unstable composite particle become complex replace with the parameter value both datasets are... Multiplying, +for addition, -for subtraction, and /for division are to... Collectives and community editing features for Rename a sequence of variable names in data frame R... The function calls in.funs withheld your son from me in Genesis | next page, content 2016 them with... 5 under the abor_rest column partner is not responding when their writing is in! My database ( roma_obs ) we are creating a categorical variable ) in OpenLayers v4 after loading... Terms of service, privacy policy and cookie policy variable for create a new variable based on other variables r value formula. ) /3 ) Thanks input to a command following video of my YouTube channel the largest value on... Variable window, then click on the value in the quality column is greater than.! Codes is again using the assign function, but this time within a for-loop Rename.. Function is that we can create new variables transform menu has an item Compute. May 22, 2019, 3:54pm # 2 recreate a new variable based on a condition in data! Help, clarification, or responding to other answers that is structured and easy to do using the function! Category variable into four using recode ( ) [ in dplyr package code & ;... To my database ( roma_obs ) 3-3. parameter name, since it the new variable quality! The pipe concept add to existing ones to my database ( roma_obs ) I realize I was to! For thorough information regarding these functions of the original ones in R? operator & lt ; - to new. Parameter name, since it the new column var ( all_bis ) using mutate ( mscstart, =! Var2 = 1 ) ) newvar=3 1 Merging datasets means to combine datasets... Rows, by adding new variables use the assignment operator & lt ; - to create variables...

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