Hello,
If you just want to write the matrices to a csv file instead of
write.csv you can use write.table with options append=TRUE, sep="," and
col.names=FALSE.
If you want to merge (rbind) them, you can use code similar to
pattern1 <- "(^var)[[:digit:]]+(.*$)"
pattern2 <- "(^var)_n_(.*$)"
colnames(Matrix1) <- sub(pattern1, "\\1_n_\\2", colnames(Matrix1))
colnames(Matrix2) <- sub(pattern1, "\\1_n_\\2", colnames(Matrix2))
Mat <- rbind(Matrix1, Matrix2)
colnames(Mat) <- sub(pattern2, "\\1_\\2", colnames(Mat))
Mat
Hope this helps,
Rui Barradas
Em 26-10-2012 04:51, Charles Determan Jr escreveu:
A general question that I have been pursuing for some time but have set
aside. When finishing some analysis, I can have multiple matrices that
have specific column names. Ideally, I would like to combine these
separate matrices for a final output as a csv file.
A generic example:
Matrix 1
var1A var1B var1C
x x x
x x x
Matrix 2
var2A var2B var2C
x x x
x x x
I would like a final exportable matrix or dataframe or whichever format is
most workable.
Matrix 3
var1A var1B var1C
x x x
x x x
var2A var2B var2C
x x x
x x x
However, no matter which function I try reports an error that the column
names are not the same.
Any insights would be appreciated.
Thanks as always,
Charles
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