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convert a 2-d csv to t7 format
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#!/bin/bash | |
# | |
# Converts to torch7's serialized format | |
# | |
if [ $# -ne 2 ] | |
then | |
echo "Usage: $0 in out" | |
echo " Where in is the input csv and out is the torch file" | |
echo " The input csv must be a headerless 2d csv with the right number of carriage retuens" | |
echo " To read into torch, use the following:" | |
echo " file=torch.DiskFile(out,'r')" | |
echo " csvdat=file:readObject()" | |
exit 1 | |
fi | |
echo "counting lines" | |
lines=$(wc -l < $1) | |
echo "lines = `echo $lines`" | |
cols=$(head -1 $1 | sed 's/[^,]//g' -| wc -c ) | |
echo "columns = `echo $cols`" | |
nvals=$(($lines*$cols)) | |
echo "creating header" | |
echo -e '4\n1\n3\nV 1\n18\ntorch.DoubleTensor\n2' > $2 | |
echo "$lines $cols" >> $2 | |
echo "$cols 1" >>$2 | |
echo -e '1\n4\n2\n3\nV 1\n19\ntorch.DoubleStorage' >> $2 | |
echo $nvals >> $2 | |
echo "dumping data; this may take a moment..." | |
`cat $1 | tr -s ',\n' ' ' >> $2` |
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