Gnuplot - EPS终端产生额外的字符

Question

我有一个gnuplot文件在EPS中输出相当不错但我在标签方面遇到了一些问题。出于某种原因，在每个标签之前插入随机数字（'）。这不是在PNG出口中生成的。

示例gnuplot error picture

gnuplot文件位于

之下

set term postscript eps enhanced 
set datafile separator ","
set datafile missing "NULL"
set decimal locale
set output 'Average_Costs_Plotted.eps'
set grid
set key left
set ytics nomirror
set xtics nomirror
set format y "£%'.0f"
set ylabel "Total Loss Estimate \n Based on Average Cost Per m^2"
set xlabel "Area Damaged m^2"
plot "Average_Costs_Upto_10000mSQM.csv" using 1:2 axis x1y1 title 'Industrial Processing' w l lw 2