Question

我知道如何在gnuplot中定义没有空格的字符串数组，例如，

titles = "LineA LineB"

如何定义字符串包含空格的字符串数组，例如Line A？这是源代码，但不起作用。

titles = "'Line A' 'Line B'"

set style line 1 pt 2 lc rgb 'green'
set style line 2 pt 4 lc rgb 'red'

plot for [i = 1:words(titles)] file using 2:3 with lp ls i title word(titles, i)

PS：我的gnuplot的版本是：

G N U P L O T
Version 4.6 patchlevel 4    last modified 2013-10-02 
Build System: Linux x86_64

Answer 1

如@Christoph在评论中所述，gnuplot 4.6 是不可能的，但 5.0 支持此操作。

要安装gnuplot 5.0，请从here下载源文件，然后：

#decompress it:
tar -xvf gnuplot-5.0.1.tar.gz

#install the dependency libraries for cairo-based terminals, like pdfcairo
sudo apt-get install libcairo2-dev
sudo apt-get install libpango1.0-dev


#build it:
cd gnuplot-5.0.1 
./configure 
make

#test it:
＃make check

#install it:
sudo make install

有关详细信息，请参阅GNUPLOT Version 5.0.1 Release Notes。

$ gnuplot

    G N U P L O T
    Version 5.0 patchlevel 1    last modified 2015-06-07 

    Copyright (C) 1986-1993, 1998, 2004, 2007-2015
    Thomas Williams, Colin Kelley and many others

    gnuplot home:     http://www.gnuplot.info
    faq, bugs, etc:   type "help FAQ"
    immediate help:   type "help"  (plot window: hit 'h')

Terminal type set to 'x11'
gnuplot>

如何在gnuplot中定义字符串（包含空格）？

1 个答案: