add misc/bar misc/timefmt

Author: masa16

misc/bar/bar.rb

@@ -0,0 +1,13 @@
+require 'numo/gnuplot'
+
+x = ['a','b','c','d']
+y = [10,20,40,30]
+
+Numo.gnuplot do
+  debug_on
+  set boxwidth:0.5
+  set style:[fill:'solid']
+  plot x,y, using:[2,'xtic(1)'], with:'boxes'
+end
+
+gets

misc/timefmt/test.dem

@@ -0,0 +1,17 @@
+# http://stackoverflow.com/questions/4515621/gnuplot-timefmt-issue
+
+set xdata time
+set timefmt x '"%Y-%m-%d %H:%M:%S"'
+#set xrange ['"2010-08-28 02:44:55"':'"2010-12-19 16:46:55"']
+#set xrange ['"2010-08-28 02:44:55"':'"2010-08-30 16:46:55"']
+#set yrange [0:500]
+#set datafile separator "|"
+
+plot '-' using 3:1 w lp
+ 3 Harpos "2010-08-28 02:44:55"
+ 5 Harpos "2010-08-29 02:09:19"
+ 4 Harpos "2010-08-29 02:22:25"
+26 Harpos "2010-08-30 03:01:09"
+e
+
+pause mouse

misc/timefmt/timefmt.rb

@@ -0,0 +1,43 @@
+require "numo/gnuplot"
+
+data= <<EOL
+2016-07-19T23:47:53.432Z 33.2
+2016-07-19T23:41:59.558Z 33.1
+2016-07-19T23:36:06.183Z 32.9
+2016-07-19T23:30:09.101Z 32.7
+2016-07-19T23:24:15.936Z 32.6
+2016-07-19T23:18:19.082Z 32.4
+2016-07-19T23:12:20.944Z 32.4
+2016-07-19T23:06:28.191Z 32.3
+2016-07-19T23:00:35.459Z 31.6
+2016-07-19T22:54:33.798Z 31.2
+2016-07-19T22:48:31.436Z 30.7
+2016-07-19T22:42:27.744Z 30.1
+2016-07-19T22:36:30.776Z 29.7
+2016-07-19T22:30:32.814Z 29.4
+2016-07-19T22:24:38.774Z 28.8
+2016-07-19T22:18:38.911Z 28.5
+2016-07-19T22:12:45.805Z 28.2
+2016-07-19T22:06:39.124Z 27.7
+2016-07-19T22:00:39.920Z 27.1
+2016-07-19T21:54:42.007Z 26.5
+EOL
+
+x,y = data.split(/\n/).map{|x| x.split}.transpose
+y.map!{|i| i.to_f}
+
+Numo.gnuplot do
+  debug_on
+  set ylabel: 'Temperature degree'
+  set xlabel: "Time (starting at #{x[0]})"
+  set xdata: "time"
+  set timefmt_x: "'\"%Y-%m-%dT%H:%M:%SZ\"'"
+  set format_x: '%H:%M'
+  set :style, :data, "lines"
+  #set 'terminal postscript color eps enhanced font "Helvetica,13" size 16cm,8cm'
+  #set "output 'temperature-pcb.ps'"
+
+  plot x,y,using:[1,2],with:"linespoints",lc_rgb:"black",lw:3,notitle:true
+end
+
+gets