[R] Help w/an old R program I've rediscovered and want to make work

[Rolf Turner]

On 23/10/11 09:56, pce369 wrote:
> Hi Barry, and thanks very, very much for your comments.
>
> OK, I think I've resolved the issue of where the file is, as the program
> runs...and then dies. The error message I am getting now is:
>
> "Error in tapply(MCP, MCPsplitlist, MCPfunction) : arguments must have same
> length"
>
> No idea what this means. Any idea? Thanks kindly -

Surely it means that the arguments must have the same length!!!

What are the lengths of MCP, and MCPsplitlist?

     cheers,

         Rolf Turner