[R] Creating a sparse matrix from a file

[Pallavi Palleti]

Hi all,

I am new to R and learning the same. I would like to create a sparse matrix
from an existing file whose contents are in the format
      "rowIndex,columnIndex,value"

for ex:
1,2,14
2,4,15

I would like to create a sparse matrix by taking the above as input.
However, I couldn't find an example where the data was being read from a
file. I tried searching in R tutorial and also searched for the same in web
but in vain. Could some one kindly help me how to give the above format as
input in R to create a sparse matrix.

Thanks
Pallavi

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