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|
#!/bin/bash
N=10
function loopBC {
echo
echo -n " --- GNU bc doing the addition $N times"
i=0
while [ $i -lt $N ]
do
echo "1+2" | bc -l > /dev/null
i=$((i + 1))
done
}
function loopLittleR {
echo
echo -n " --- our r doing the addition $N times"
i=0
while [ $i -lt $N ]
do
echo "cat(1+2,'\n')" | ../r --vanilla > /dev/null
i=$((i + 1))
done
}
function loopRscript {
echo
echo -n " --- GNU R's Rscript doing the addition $N times"
i=0
while [ $i -lt $N ]
do
echo "cat(1+2,'\n')" | Rscript - > /dev/null
i=$((i + 1))
done
}
function loopR {
echo
echo -n " --- GNU R doing the addition $N times"
i=0
while [ $i -lt $N ]
do
echo "cat(1+2,'\n')" | R --slave --vanilla > /dev/null
i=$((i + 1))
done
}
time loopBC
time loopLittleR
time loopRscript
time loopR
|
