消除gnuplot中烛台图的周末缺口 [英] Remove weekend gaps in gnuplot for candlestick chart

问题描述

我正在尝试使用gnuplot绘制一些金融烛台图。问题是周末没有数据，我不希望显示这些差距。

I am trying to plot some financial candlestick charts with gnuplot. The problem is that there is no data during the weekends, and I don't want these gaps to be showed. Picture and code included below.

set datafile separator ","
set xdata time
set timefmt"%Y-%m-%d"
set xrange ["2015-10-22":"2016-02-06"]
set yrange [*:*]
set format x
plot 'head.dat' using 1:2:4:3:5 notitle with candlesticks

推荐答案

因为每个工作日只有一个条目，而不是使用日期作为横坐标，您可以使用行号：

As you have one entry per working day, instead of using the dates as abscissae you can use the line number:

plot 'head.dat' using 0:2:4:3:5 notitle with candlesticks

然后，我想您会问如何恢复<$上的日期c $ c> x 轴。您可以使用 xticslabel ：

Then I guess you'll ask how to restore the dates on the x-axis. You can use xticslabel :

set xtics rotate 90
plot "head.dat" u 0:2:4:3:5:xticlabels(1) notitle with candlesticks

如果要避免显示每个标签，请使用此 everyNth 函数由 dir 发布，例如每五个标签：

If you want to avoid having every label shown use this everyNth function posted by dir, e.g. every fifth label:

set datafile separator ","
everyNth(countColumn, labelColumnNum, N) = \
  ( (int(column(countColumn)) % N == 0) ? stringcolumn(labelColumnNum) : "" ) 
set xtics rotate 90
plot "head.dat" using 0:2:4:3:5:xticlabels(everyNth(0, 1, 5)) notitle with candlesticks

结果在：

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