Aggregating a lot of columns in R

Question

I have a csv file containings a matrix:

version getSize() length() ... power
0         23000    23421        0.8
0           ..      ..           ..
1           ..      ..           ..
1           ..      ..           ..

I want to aggregate by similar versions applying the mean function to the columns. The columns are too many to write them. I need a way to specify all these columns.

Thanks in advance

Answer 1

You can use aggregate . If your data.frame is called df , try:

newdf <- aggregate(. ~ version, data = df, mean)