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 events:
   9 seconds=60
  10 ./sleepcount.sh "$1" "$seconds"
  11
  12 #Approximate size of graph
  13 size="$(tail -n 1 "$1" | 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 "$1.png"
  20 set terminal png size $size,300
  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 "$1" using 2:5 title "Sensor state" with steps,\
  36 "$1.counts.$seconds" using 1:(\$2/5) title "Activations in last $seconds seconds" smooth csplines
  37
  38 EOF
  39
  40
  41
  42