c/goertzel/sleepplot.sh

   1 #!/bin/bash
   2
   3 test -z "$1" && {
   4         echo "Usage: $0 sleeplog.txt"
   5         exit 23
   6 }
   7
   8 #Count:
   9 seconds=60
  10 cat "$1" | cut -f 2,5 | cut -d ' ' -f 1 | grep '1$' | while read line; do
  11         time=$(echo $line | cut -d ' ' -f 1);
  12         time=$(( $time + $seconds - $time%$seconds ))
  13         echo "$time"
  14 done | uniq -c | sed -e 's/^\s*//g' | tr ' ' '\t' > "$1.counts"
  15
  16
  17 #Approximate size of graph
  18 size="$(tail -n 1 "$1" | cut -d . -f 1)"
  19 test $size -gt 3600 && size="$(( $size/10 ))" #For prolonged periods
  20 size="$(( 600 + $size ))"
  21
  22 #Plot it
  23 gnuplot << EOF
  24 set output "$1.png"
  25 set terminal png size $size,300
  26
  27 set title "Sleep motions"
  28 set xlabel "time"
  29 set ylabel "motion"
  30
  31 set yrange [-0.5:3]
  32
  33 set xdata time
  34 set timefmt "%s"
  35 #set format x "%H:%M:%S"
  36
  37 set grid
  38
  39 #set pointsize 0.5
  40 plot "$1" using 2:5 with steps, "$1.counts" using 2:(\$1/7) with lines
  41
  42 EOF
  43
  44
  45
  46