Hi,
How to add values to an array at any position. Asking because of the following: e.g.
y<-c(0.1,NaN,0.2,NaN) #or data frame
x<-na.omit(y)
take some columns from x and do some computation with functions which do not allow NaN 's.
After the computing add NaN's at positions stored in attr(x,"na.action") of the result vector.
/E
-- Dipl. bio-chem. Witold Eryk Wolski MPI-Moleculare Genetic Ihnestrasse 63-73 14195 Berlin tel: 0049-30-83875219 __("< _ http://www.molgen.mpg.de/~wolski \__/ 'v' http://r4proteomics.sourceforge.net || / \ mail: [EMAIL PROTECTED] ^^ m m [EMAIL PROTECTED]
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