please help me

[Kumar10]

Hi I am beginner in R programming and I got this problem which is stated below. Can anyone explain how to overcome this problem.
matD2 <- cbind(matD,feature1, feature2)
Error in data.frame(..., check.names = FALSE) :
arguments imply differing number of rows: 3, 4

[arvid]

The error message is quite clear, isn't it? You need to pad the variables so that they have the same number of rows.
Check out "rbind" if they are matrices or data frames, "c" if they are vectors or simple lists. You can use "rep" to make repetitive vectors of values (e.g. NAs to pad) and "matrix" to create a matrix to pad with. If you want to automate this in your script you can get the dimensions of data frames and matrices with "dim". Check out the R help for details...

[Kumar10]

Thank you for your advice. I checked and corrected my mistake.