[R] using tapply on a data frame in a function

Hello, I'm trying to use tapply to find group means in a function. It works outside of a function, but I get the error message from the following code: Error in tapply(index, cluster, mean) : arguments must have same length. Any suggestions? Thanks. eric d - data.frame(cbind(cluster=1:2,

Re: [R] using tapply on a data frame in a function

eric lee wrote: Hello, I'm trying to use tapply to find group means in a function. It works outside of a function, but I get the error message from the following code: Error in tapply(index, cluster, mean) : arguments must have same length. Any suggestions? Thanks. This is neither caused

Re: [R] using tapply on a data frame in a function

eric lee ericlee100 at gmail.com writes: Hello, I'm trying to use tapply to find group means in a function. It works outside of a function, but I get the error message from the following code: Error in tapply(index, cluster, mean) : arguments must have same length. Any suggestions?