Dear all, I am quite new to R; facing certain problems: Say, I have a text file( named as "try"): Year C1 C2 C3 C4 C5 C6 Y1 3.5 13.8 9.5 6.8 0.4 24.2 Y2 3.8 13.9 9.9 7.6 0.7 12.8 Y3 4.5 14.5 14.2 9.2 0.6 14.5 Y4 5.9 16.2 24.6 12.7 0.2 24.3 Y5 7.2 20.4 40.6 18.2 0.8 28.2 Y6 5.9 18.6 37.4 14.5 0.3 36.9 Y7 8.0 16.1 88.6 24.1 0.1 34.6 Y8 13.6 21.1 56.3 19.0 0.7 33.3
I wish to import the file into R and make certain computations, like intercorrelation matrix. I tried the following syntax: # Inputting the data file (saved in text format) df="trial.txt" idt=read.table(df,header=T, sep="\t") idt # To generate intercorrelatio matrix r = cor(idt) r=round(r, 4) r The seems to have been read, but further computations not made, with the following output: > # Inputting the data file (saved in text format) > df="trial.txt" > idt=read.table(df,header=T, sep="\t") > idt Year C1 C2 C3 C4 C5 C6 1 Y1 3.5 13.8 9.5 6.8 0.4 24.2 2 Y2 3.8 13.9 9.9 7.6 0.7 12.8 3 Y3 4.5 14.5 14.2 9.2 0.6 14.5 4 Y4 5.9 16.2 24.6 12.7 0.2 24.3 5 Y5 7.2 20.4 40.6 18.2 0.8 28.2 6 Y6 5.9 18.6 37.4 14.5 0.3 36.9 7 Y7 8.0 16.1 88.6 24.1 0.1 34.6 8 Y8 13.6 21.1 56.3 19.0 0.7 33.3 > # To generate intercorrelatio matrix > r = cor(idt) Error in cor(idt) : missing observations in cov/cor In addition: Warning message: In cor(idt) : NAs introduced by coercion > r=round(r, 4) Error: object "r" not found > r Error: object "r" not found Kindly advise me as to how to get rid of the error message. AJSS ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
