[R] R dataframe question

[arun]

Hi,

The question is not clear.

set.seed(45)
 spe <- data.frame(Col1=sample(c(1:10,letters[1:2]),400,replace=TRUE))
 mat1 <- matrix(spe[,1],nrow=20,ncol=20)



#If you want to replace the non-numeric values with NAs,
 mat2 <- matrix(as.numeric(as.character(spe[,1])),nrow=20,ncol=20)


A.K.



Hello, 

My data is in a 1 column x 40000 row data frame.  I would like 
to make it a 200 column x 200 row data frame. When I was using all 
numeric values, I used the code below to transform my vector into a 
matrix.   

spematrix=data.matrix(spe) 
matrix = matrix(spe, nrow = 200, ncol=200) 

I cannot use this now though because my data contains non-numeric values.   

I am new to R and would appreciate any help.   

Thanks, 

Mary