c/goertzel/sleepplot.sh

   1 #!/bin/bash
   2
   3 test -z "$1" && {
   4         echo "Usage: $0 sleeplog.txt"
   5         exit 23
   6 }
   7
   8 #Approximate size of graph
   9 size="$(tail -n 1 "$1" | cut -d . -f 1)"
  10 test $size -gt 3600 && size="$(( $size/10 ))" #For prolonged periods
  11 size="$(( 600 + $size ))"
  12
  13 #Plot it
  14 gnuplot << EOF
  15 set output "$1.png"
  16 set terminal png size $size,300
  17
  18 set title "Sleep motions"
  19 set xlabel "time"
  20 set ylabel "motion"
  21
  22 set yrange [-0.5:3]
  23
  24 set xdata time
  25 set timefmt "%s"
  26 #set format x "%H:%M:%S"
  27
  28 set grid
  29
  30 #set pointsize 0.5
  31 plot "$1" using 2:5 title "Sensor state" with steps,\
  32 "" using 2:(\$6*3) title "Avg last last 10 seconds" with lines,\
  33 "" using 2:(\$7*3) title "Avg last last 30 seconds" with lines,\
  34 "" using 2:(\$8*3) title "Avg last last 120 seconds" with lines\
  35
  36 EOF
  37
  38
  39
  40