Hello all,
Probably my concepts about the data.frame and matrix and array in R
are not clear, I need some clarification to help me understand them
better.
>M <- read.table("test1.csv",sep=",",row.names=NULL,header=T)
gives me: M as
M1 M2 M3 M4 M5 M6 M7 M8 M9 M10
1 9 11 14 15 18 20 20 20 20 20
2 3 4 8 9 11 12 14 15 15 15
3 4 5 8 8 9 9 9 9 9 9
4 4 5 7 8 8 8 8 8 8 9
1. How can I read the csv file to:
M1 M2 M3 M4 M5 M6 M7 M8 M9 M10
[1,] 9 11 14 15 18 20 20 20 20 20
[2,] 3 4 8 9 11 12 14 15 15 15
[3,] 4 5 8 8 9 9 9 9 9 9
[4,] 4 5 7 8 8 8 8 8 8 9
2. or how can convert the above M to a format with [1,],[2,] etc
instead of 1,2,etc?
3. How can I read a text file so that I can get:
[,1] [,2] [,3] [,4] [,5]
[1,] 9 11 14 15 18
[2,] 3 4 8 9 11
[3,] 4 5 8 8 9
[4,] 4 5 7 8 8
(instead of having the columns names V1 to V5?)
Thank you for your help!
Regards,
John
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