git-svn-id: svn://svn.valgrind.org/valgrind/trunk@8417
## Read a stream of numbers from stdin (one per line), and print the average
# and standard deviation.
function avgstddev {
- awk '{n++;m=NF;for(i=1;i<=NF;i++){sum[i]+=$i;sumsq[i]+=$i*$i}}END{for(i=1;i<=m;i++){d=sumsq[i]/n-sum[i]*sum[i]/n/n;printf "%.2f %.2f ",sum[i]/n,(d>0?sqrt(d):0.01)}}'
+ awk '{n++;m=NF;for(i=1;i<=NF;i++){sum[i]+=$i;sumsq[i]+=$i*$i}}END{for(i=1;i<=m;i++){d=sumsq[i]/n-sum[i]*sum[i]/n/n;printf "%.2f %.2f ",sum[i]/n,(d>=0.0001?sqrt(d):0.01)}}'
}
## Query the virtual memory size for the last invocation of command $1 from