HI,
 
I have searched the R-help achive, trying to find a way to sort columns in a data frame according to a specific list, but not be able to find a general way to do it.
 
My data frame contains columns, with each one named from a sample ID, and each sample was measured in a specific time, generating one column of data, now I would like to sort the columns according to the time course, so I have the second data frame containing sample IDs with time point, but how should I do the sorting?
 
Thanks a lot!
 
Jie


      
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