On 30/04/2010 4:19 AM, anderson nuel wrote:
Dear r-help,
Could you help me to find a solution for this error:
Il y a eu 50 avis ou plus (utilisez warnings() pour voir les 50 premiers)
warnings()
Messages d'avis :
1: In if ((data[pa, k] == df[, j]) & (data[ch, k] == i)) { ... :
la condition a une longueur > 1 et seul le premier élément est utilisé
It's saying that the condition has length > 1 and only the first element
is used. This is probably coming from the first part of the test:
data[pa,k] will be scalar, but df[,j] looks like a vector of every
element in column j. The result is a vector with as many entries as you
have rows in df. Only the first of them will be compared to data[pa, k].
Duncan Murdoch
2: In if ((data[pa, k] == df[, j]) & (data[ch, k] == i)) { ... :
la condition a une longueur > 1 et seul le premier élément est utilisé
ch=3
pa=c(1,2)
r=2
t=4
nb=15
ni=array(0,c( r,t))
for ( i in 1:r){
for (j in 1:t ){
for (k in 1:nb){
if ( (data[pa,k]== df[,j]) & (data[ch,k]==i)){
ni[i,j]=ni[i,j]+1
}
}
}
}
Best Regards
[[alternative HTML version deleted]]
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and provide commented, minimal, self-contained, reproducible code.
