Modified histogram shell plot script, added python dynamics plot script

webrtc/modules/remote_bitrate_estimator/test/plot_dynamics.sh

 #!/bin/bash
 
 # Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 # To set up in e.g. Eclipse, run a separate shell and pipe the output from the
 # test into this script.
 #
 # In Eclipse, that amounts to creating a Run Configuration which starts
 # "/bin/bash" with the arguments "-c [trunk_path]/out/Debug/modules_unittests
 # --gtest_filter=*BweTest* | [trunk_path]/webrtc/modules/
-# remote_bitrate_estimator/bwe_plot.
+# remote_bitrate_estimator/test/plot_dynamics.sh
 
-# bwe_plot.sh supports multiple figures (windows), the figure is specified as an
+# This script supports multiple figures (windows), the figure is specified as an
 # identifier at the first argument after the PLOT command. Each figure has a
 # single y axis and a dual y axis mode. If any line specifies an axis by ending
 # with "#<axis number (1 or 2)>" two y axis will be used, the first will be
 # assumed to represent bitrate (in kbps) and the second will be assumed to
 # represent time deltas (in ms).
 
 log=$(</dev/stdin)
 
+# Plot dynamics.
 function gen_gnuplot_input {
   colors=(a7001f 0a60c2 b2582b 21a66c d6604d 4393c3 f4a582 92c5de edcbb7 b1c5d0)
   plots=$(echo "$log" | grep "^PLOT")
   figures=($(echo "$plots" | cut -f 2 | sort | uniq))
 
   for figure in "${figures[@]}" ; do
     data_sets=$(echo "$plots" | grep "^PLOT.$figure" | cut -f 3 | sort | uniq)
     linetypes=($(echo "$data_sets" | grep "#" | cut -d '#' -f 2 | \
       cut -d ' ' -f 1))
-    echo -n "reset; "
-    echo -n "set terminal wxt $figure size 1440,900 font \"Arial,9\"; "
-    echo -n "set xlabel \"Seconds\"; "
+    echo "reset; "
+    echo "set terminal wxt $figure size 1440,900 font \"Arial,9\"; "
+    echo "set xlabel \"Seconds\"; "
     if (( "${#linetypes[@]}" > "0" )); then
-      echo -n "set ylabel 'bitrate (kbps)';"
-      echo -n "set ytics nomirror;"
-      echo -n "set y2label 'time delta (ms)';"
-      echo -n "set y2tics nomirror;"
+      echo "set ylabel 'bitrate (kbps)';"
+      echo "set ytics nomirror;"
+      echo "set y2label 'time delta (ms)';"
+      echo "set y2tics nomirror;"
     fi
     echo -n "plot "
     i=0
     for set in $data_sets ; do
       (( i++ )) && echo -n ","
       echo -n "'-' with "
       echo -n "linespoints "
       echo -n "ps 0.5 "
       echo -n "lc rgbcolor \"#${colors[$(($i % 10))]}\" "
       if (( "${#linetypes[@]}" > "0" )); then
         if (( "$i" <= "${#linetypes[@]}" )); then
           echo -n "axes x1y${linetypes[$i - 1]} "
         else
           # If no line type is specified, but line types are used, we will
           # default to the bitrate axis.
           echo -n "axes x1y1 "
         fi
       fi
       echo -n "title \"$set\" "
     done
     echo
     for set in $data_sets ; do
       echo "$log" | grep "^PLOT.$figure.$set" | cut -f 4,5
       echo "e"
     done
   done
 }
-
 gen_gnuplot_input | gnuplot -persist