Hi all,
How does one create a matrix of values in a loop. For example, I have 46*70
matrix with columns giving the values for some blood tests performed upon
the 46 patients(rows). I want to perform a simple test of normality
(shapiro-wilk test) upon each of the biochemical tests for the 46
patients. Can somebody suggest the syntax for such a loop. For the data x, I
wrote the following loop which didnt work:-
pv<-1:70
stat<-1:70
for(i in 1:70)
{
pv[i]=shapiro.test(x[,i])$p.value
stat[i]<-shapiro.test(x[,i])$statistic
}
warning msg: items to replace is not a multiple of replacement length

Does it have anything to do with the method of importing data as
read.delimrather than
read.table?
Please suggest

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