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Genentech Nonclinical Biostatistics
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---------- Forwarded message ----------
From: koushiki sarkar <koushikisark...@gmail.com>
Date: Mon, Mar 17, 2014 at 7:32 PM
Subject: [R] Beginner: How do I copy the results from a for loop in a csv file?
To: r-help@r-project.org
Hello
I am using 2 for loops to find the difference between all rows of a matrix.
I need to store it to a csv file. I have written this:
for (i in 0:length(datamat)){
for (j in i+1:length(datamat)){
x<-datamat[i,]-datamat[j,];
y<-as.data.frama(x);
write.csv(y, "dif.csv")
}}
datamat is the original datamatrix and dif is the file i want to copy the
results to.
However, when i open this file, I find it empty. What is it that I'm doing
wrong? Also, can I store the results of this loop in another matrix? If
then, how? I am new to R and not skilled in other programming languages.
Any help is appreciated!
Thank you
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