Use ifelse across a range of R data frame columns
Here is how to apply the ifelse function across a range of multiple R data frame columns. Sometimes it is necessary to do…
ISO week number and ISO year in R
The easiest way to do ISO week number and ISO year calculations in R is by using two simple functions from package lubridate.
Variance or other calculation across columns in R
Here is how to calculate variance across columns in the R data frame. The same technique can be useful in other situations. Like…
Group index that restarts in R
Here is how to generate a group index in R that restarts every time there change in variables.
Running, moving, rolling average in R, dplyr
You can calculate the moving average (also called a running or rolling average) in different ways by using R packages.
Combine apply and match in R, return the name of the column
Here is how to use functions apply and match together in R and a result – return the name of the column that…
Edit R data frame almost like in Excel
Do you want to edit R data frame like an Excel table? It is not possible the same way. But on the other…
R “not in” operator, opposite of “in”
R operator %in% is handy for work with vectors, but how to use it oppositely? Something like %notin% that will exclude anything that…
Move column to a specific position in R
The easiest way to move the data frame column to a specific position in R is by using the function relocate from package…
