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How to Check If File and Folder Already Exists in R
Whether you are reading or writing files via programs in the file system, it is …

How to Check Data type of a Variable in R
When it comes to checking the data type of a variable, it depends on what …

Mastering grepl() Function in R
The grepl() function (stands for “grep logical”) in R searches for patterns within each element …

zip(), unzip() and tar(), untar() Functions in R
The zip() function creates a new zip archive file. You must ensure that the zip tool …

How to Create Directory and File If It doesn’t Exist in R
When working with file systems, checking the directory or file existence is always better before …

How to Create a Grouped Boxplot in R
To create a grouped boxplot in R, we can use the ggplot2 library’s aes() and …