Hi,
 
I'm trying to convert Matrix into a list format and have written the following 
code:
 
path = ("C:/2PL_Alpha_C_2PL_Loading")
setwd(path)
getwd()
 
congeneric = matrix(rep(NA,36),nrow=6,ncol=6)
conFirst = matrix(rep(NA,36),nrow=6,ncol=6)
conFirstTwenty = rep(NA, 20)
k = 1
 
#Reading all the Alpha and Congeneric 2PL values into variables
alpha <- read.table("2PLAlphaGenPars_1.dat", header=FALSE)
congeneric <- read.table("C_parameter_estimates_1.dat", header=FALSE)
 
for (i in 1:6)
{
 for (j in 1:6)
  {
   conFirst[i,j] = as.matrix(congeneric[i,j])
   if (k <= 20)
   {
    conFirstTwenty[k] = as.list(conFirst[i,j])
    k = k + 1
   }
  
  }
}
 
In the above program i'm picking up the first 20 values from the Matrix and 
putting it in a list format. This is what i see now in conFirstTwenty:
 
[[1]]
[1] "0.520404D+00"
[[2]]
[1] "0.601942D+00"
[[3]]
[1] "0.603340D+00"
[[4]]
[1] "0.655582D+00"
[[5]]
[1] "0.490995D+00"
.........
..........
..........
...........
[[20]]
[1] "0.627368D+00"
 
I want to remove the Column name and Row name from the above output. Any help 
on this will be greatly appreciated (I'm open to any other alternative way to 
convert Matrix into List also)
 
P.S. I have tried using row.names and col.names in the read.table function 
however getting error "col.names object not found". I don't know what does this 
mean
 
Regards,

Nidhi Kohli
***************************************
Nidhi Kohli, M.Ed.
Doctoral Student
Department of Measurement, Statistics 
 and Evaluation 
University of Maryland
1230 Benjamin Building
College Park, MD 20742-1115

e-mail: nid...@umd.edu

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