dataframe conversion

Pieter Provoost wrote:

The data structures in R are still very puzzling to me. Can anyone tell
me how I can easily convert these two dataframes to one single dataframe
with two columns (mean and sd) with 7 rows?

 > meanprofile

       V1       V2       V3       V4       V5       V6       V7
2292.001 2178.620 1654.310 1784.004 1160.052 1142.061 1046.675

 > sdprofile

       V1       V2       V3       V4       V5       V6       V7
310.6714 347.2072 197.2464 532.3916 161.2955 227.3634 108.5017

This is quite an unusual task, because you won't have data structure in
a data.frame most of the times. In particular, you cannot make a row
from a data.frame to a column generally.

In this case, we just convert the data.frame to matrix. I think most
easily you can write:

  dat <- t(rbind(meanprofile, sdprofile))
  colnames(dat) <- c("meanprofile", "sdprofile")