c/goertzel/sleepplot.sh

   1 #!/bin/bash
   2
   3 test -z "$1" && {
   4         echo "Usage: $0 sleeplog.txt"
   5         exit 23
   6 }
   7
   8 in="$1";
   9 graphout="${in%%.*}.png"
  10 test -n "$2" && graphout="$2";
  11
  12 #Approximate size of graph
  13 size="$(tail -n 1 "$in" | cut -d . -f 1)"
  14 test $size -gt 3600 && size="$(( $size/10 ))" #For prolonged periods
  15 size="$(( 600 + $size ))"
  16
  17 #Plot it
  18 gnuplot << EOF
  19 set output "$graphout"
  20 set terminal png size $size,400
  21
  22 set title "Sleep motions"
  23 set xlabel "time"
  24 set ylabel "motion"
  25
  26 set yrange [-0.5:3]
  27
  28 set xdata time
  29 set timefmt "%s"
  30 #set format x "%H:%M:%S"
  31
  32 set grid
  33
  34 #set pointsize 0.5
  35 plot\
  36 "$in" using 2:5 title "Sensor state" with steps,\
  37 "" using 2:(\$6*2) title "Avg. 10s" with lines,\
  38 "" using 2:(\$7*3) title "Avg. 30s" with lines,\
  39 "" using 2:(\$8*3) title "Avg. 60s" with lines,\
  40 "" using 2:(\$9*3) title "Avg. 90s" with lines,\
  41 "" using 2:(\$10*4) title "Avg. 120s" smooth bezier\
  42
  43 EOF
  44
  45
  46
  47