Error in aggregate.data.frame : arguments must have same length

Question

I keep getting this error and I\'m not quite sure what it means. All of my variable names are consistent and there are no typos. Am I missing something here?

The code

Answer 1

Check class(dataNew). If it's not a data.frame, this dataNew <- data.frame(dataNew) before aggregation should solve the error or

datNewagg <- aggregate (data.frame(dataNew), by = list('x', 'y', 'z', 'a', 'ab'), 
                                                         FUN = mean)