How to use do.call method In R Language
The strsplit() method in R is used to split the specified column string vector into corresponding parts. The pattern is used to divide the string into subparts.
Syntax:
strsplit(str, pattern)
Parameter :
- str: The string vector to be split.
- pattern: Pattern to split up the string by.
The do.call() method is used to call a function from within a method name. The rbind() method can then be used to combine the columns obtained as vectors as a result of the application of strsplit method.
Syntax:
do.call(what, args)
Parameter:
- what – The function to execute
- args – Additional arguments to execute.
Example: Split Dataframe variable into multiple columns
R
# creating a dataframe data_frame <- data.frame( col1 = c("val_1","val_2","val_3","val_4") )print("Original DataFrame")print(data_frame)# splitting values in columnprint("Modified DataFrame")# splitting the values of col1 using underscore characterdata.frame(do.call("rbind", strsplit(as.character(data_frame$col1), "_", fixed = TRUE))) |
Output:
[1] "Original DataFrame" col1 1 val_1 2 val_2 3 val_3 4 val_4 [1] "Modified DataFrame" X1 X2 1 val 1 2 val 2 3 val 3 4 val 4
Split DataFrame Variable into Multiple Columns in R
In this article, we will discuss how to split dataframe variables into multiple columns using R programming language.