Gnuplot 如何用gnu绘图绘制（单词的）出现频率

我有这样的数据（粘贴到问题的底部， 它保存在/tmp/rawdata.txt） 我使用bash，如果需要，可以

brew安装gnuplot

（为了讨论的目的）假设这是 在news.google.com上出现“foo”一词

利益相关者想知道的是，“foo”的流行程度 在上升或下降中。 流行度是指每天/小时/无论“foo”这个词是什么 出现在news.google.com上

gnu plot能帮我制作一个图表，让我向利益相关者展示吗？ 我怎样才能做到这一点。 我从未使用过gnu绘图，我在MacOS上

更新： 我试过了

但结果看起来很奇怪

---

如评论中所述，您的装箱分辨率可能太高（gnuplot将时间数据转换为秒）。您可能还需要调整方框的宽度，并调整

timefmt

以匹配数据：

set xdata time
set timefmt "%d %b %Y %H:%M:S"
binwidth = 60 * 60   # 1 hour
bin(x,width) = width*floor(x/width)
set boxwidth binwidth
plot "data.txt" using (bin(timecolumn(2),binwidth)):(1.0) smooth frequency notitle with boxes

---

你有半小时大小的垃圾箱，还有很多半小时都没有结果。我想这就是为什么结果“看起来很奇怪”。尝试每天批处理如此稀疏的数据。@CupcakeProtocol我相信箱子的宽度实际上是30秒……谢谢，@user8153。我的gnuplot显然生锈了。

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Sun,  5 Aug 2018 23:42:59 PDT
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Sun,  5 Aug 2018 06:48:53 PDT
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Sat,  4 Aug 2018 18:29:20 PDT
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Fri,  3 Aug 2018 20:57:42 PDT
Fri,  3 Aug 2018 20:15:04 PDT
Fri,  3 Aug 2018 17:32:50 PDT
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Fri,  3 Aug 2018 15:40:52 PDT
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Fri,  3 Aug 2018 13:59:15 PDT
Fri,  3 Aug 2018 13:40:21 PDT
Fri,  3 Aug 2018 12:33:09 PDT
Fri,  3 Aug 2018 09:52:59 PDT
Fri,  3 Aug 2018 08:36:43 PDT
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Fri,  3 Aug 2018 06:53:59 PDT
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Fri,  3 Aug 2018 03:24:30 PDT
Thu,  2 Aug 2018 23:53:17 PDT
Thu,  2 Aug 2018 22:48:59 PDT
Thu,  2 Aug 2018 21:59:06 PDT
Thu,  2 Aug 2018 21:06:01 PDT
Thu,  2 Aug 2018 20:37:45 PDT
Thu,  2 Aug 2018 18:58:55 PDT
Thu,  2 Aug 2018 16:06:43 PDT
Thu,  2 Aug 2018 14:05:31 PDT
Thu,  2 Aug 2018 13:47:08 PDT
Thu,  2 Aug 2018 13:25:09 PDT
Thu,  2 Aug 2018 12:45:49 PDT
Thu,  2 Aug 2018 11:24:55 PDT
Thu,  2 Aug 2018 09:44:01 PDT
Thu,  2 Aug 2018 09:04:58 PDT
Thu,  2 Aug 2018 08:55:37 PDT
Thu,  2 Aug 2018 08:19:09 PDT
Thu,  2 Aug 2018 06:41:45 PDT
Thu,  2 Aug 2018 06:16:22 PDT
Thu,  2 Aug 2018 03:45:36 PDT
Thu,  2 Aug 2018 03:35:34 PDT
Thu,  2 Aug 2018 01:32:07 PDT
Wed,  1 Aug 2018 23:25:47 PDT
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Wed,  1 Aug 2018 21:22:18 PDT
Wed,  1 Aug 2018 21:07:04 PDT
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Wed,  1 Aug 2018 11:05:01 PDT
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Tue, 31 Jul 2018 23:18:06 PDT
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Tue, 31 Jul 2018 20:36:25 PDT
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Thu, 26 Jul 2018 08:43:50 PDT
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Thu, 26 Jul 2018 01:52:34 PDT
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Wed, 25 Jul 2018 16:11:48 PDT
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Wed, 25 Jul 2018 13:55:26 PDT
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Wed, 25 Jul 2018 12:23:58 PDT

set xdata time
set timefmt "%d %b %Y %H:%M:S"
binwidth = 60 * 60   # 1 hour
bin(x,width) = width*floor(x/width)
set boxwidth binwidth
plot "data.txt" using (bin(timecolumn(2),binwidth)):(1.0) smooth frequency notitle with boxes