i was going to normalize my microarray datasets by vsn package but i got this error
what does this mean please?
a <- vsn(mycounts)
The function 'vsn' has been superseded by 'vsn2'.
The function 'vsn' remains in the package for backward compatibility,
but for new projects, please use 'vsn2'.
Error in getIntensityMatrix(intensities, verbose) :
'intensities' was found to be a data.frame, but contains non-numeric columns.
> a <- vsn2(mycounts)
Error in (function (classes, fdef, mtable) :
unable to find an inherited method for function ‘vsn2’ for signature ‘"data.frame"’