Displaying 2 results from an estimated 2 matches for "p0fichiers".
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2007 Aug 27
0
how to write nicely a condition on a loop "for" (that is, not like I did)
...way to solve it taking advantages of the R
language (which I don't master at all), that is with less "if" tests.
To sum up :
nfichiers is a list of files (with .P0 or .Px (x>0) extension) I have to
copy to a database.
nfichiers can also be "0" if there is no file to copy
p0fichiers is the list of files having the .P0 extension if there are such
files to copy
And p0fichiers can also be "0" if there are only .Px files to copy
So, before doing the "for" loop, I want to test if p0fichiers really
contains something.
Thanks for your comments and your advices to...
2007 Aug 27
4
Problem with save or/and if (I think but maybe not ...)
...relrfichiers<-dir(chemin, pattern=".P")
rfichiers<-paste(chemin,relrfichiers, sep='')
if (file.exists("tfichiers.r"))
{
tfichiers<-load("tfichiers.r")
nfichiers<-setdiff(rfichiers,tfichiers)
} else {
nfichiers<-rfichiers
}
# p0fichiers : fichiers avec l'extension .P0 (fichiers contenant des lignes
d'infos ? ne pas charger)
# pxfichiers : fichiers avec les extensions P1, ..., P8 (sans infos au
debut)
if (nfichiers!="0")
{
p0fichiers<-nfichiers[grep(".P0", nfichiers)]
pxfichiers<-setdiff(nfich...