Hello everyone,
I have two problems which I am unable to solve :
1.I am trying to add the row labels (g1-g2000) to the very left of a data
table. The data
table is 2000 rows by 62 columns.I have used the following code.
read.table(file="C:\\Documents and Settings\\Owner\\My Documents\\colon
cancer1.txt",header=T,row.names=1)
rowname(dat) <- paste("g", c(1:nrow(dat)), sep="")
file.show(file="C:\\Documents and Settings\\Owner\\My Documents\\colon
cancer1.txt")
The error message I get is "error in nrow(dat):object "dat" not found
2.I am also trying to populate a scatter plot with data from two columns which
are 2000 values
long.I have tried the following code:
read.table(file="C:\\Documents and Settings\\Owner\\My Documents\\colon
cancer1.txt",header=T,row.names=1)
file.show(file="C:\\Documents and Settings\\Owner\\My Documents\\colon
cancer1..txt")
plot(50,1500,type='p',xlab='normal',ylab='tumor',main='Tumor sample vs.Normal
Sample-2000genes')
plot(50,1500,type='p',xlab='normal1',ylab='normal2',main='Two normal
samples--first 20 genes',pch=15,col='blue')
plot(dat(,1), dat(,2))
I get the following error message "error in plot (dat(,1),dat(,2) could not
find function dat
I am not sure how I am suppossed to use function dat that is where and how to
define it to the table?
Any help would be appreciated.
Paul
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