'Error while splitting dataframe in R (Using sample.split)

I have a dataframe with 140 rows and I'm splitting data randomly to test data and training data.

But while splitting the data using sample.split method in caTools library, I encountered an error.

Following is my code:

library(caTools)

set.seed(42)

features <- read.csv(file = './featur.csv', header = TRUE)
features

features$split = sample.split(features,SplitRatio = 0.8)

This is the error I get:

Error in `$<-.data.frame`(`*tmp*`, split, value = c(TRUE, FALSE, TRUE,  : 
  replacement has 18 rows, data has 140

Can anyone give a clue on what's causing this error and how I can fix it?

Solution 1:^[1]

Apparently user @RuiBarrads from the comment told me that the output of sample.split shouldn't be a column. I changed that, and it fixed it.

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Source: Stack Overflow

Solution	Source
Solution 1	Dennis Main

'Error while splitting dataframe in R (Using sample.split)

Solution 1:[1]

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Solution 1:^[1]