aosp12/external/pffft/plots.sh

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#!/bin/bash
OUTPNG="1"
W="1024"
H="768"
PTS="20"
LWS="20"
for f in $(ls -1 *-4-*.csv *-6-*.csv); do
b=$(basename "$f" ".csv")
#echo $b
LASTCOL="$(head -n 1 $f |sed 's/,/,\n/g' |grep -c ',')"
echo "${b}: last column is $LASTCOL"
if [ $(echo "$b" |grep -c -- "-1-") -gt 0 ]; then
YL="duration in ms; less is better"
elif [ $(echo "$b" |grep -c -- "-4-") -gt 0 ]; then
YL="duration relative to pffft; less is better"
else
YL=""
fi
E=""
if [ "${OUTPNG}" = "1" ]; then
E="set terminal png size $W,$H"
E="${E} ; set output '${b}.png'"
fi
if [ -z "${E}" ]; then
E="set key outside"
else
E="${E} ; set key outside"
fi
E="${E} ; set datafile separator ','"
E="${E} ; set title '${b}'"
E="${E} ; set xlabel 'fft order: fft size N = 2\\^order'"
if [ ! -z "${YL}" ]; then
#echo " setting Y label to ${YL}"
E="${E} ; set ylabel '${YL}'"
fi
# unfortunately no effect for
#for LNO in $(seq 1 ${LASTCOL}) ; do
# E="${E} ; set style line ${LNO} ps ${PTS} lw ${LWS}"
#done
E="${E} ; plot for [col=3:${LASTCOL}] '${f}' using 2:col with lines title columnhead"
if [ "${OUTPNG}" = "1" ]; then
gnuplot -e "${E}"
else
gnuplot -e "${E}" --persist
fi
done