set xdata time # x-axis values are time (date) values
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set timefmt "%Y-%m-%d" # date value format
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set datafile separator ";" # CSV column separator is semicolon
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set key autotitle columnhead # first data line contains column titles
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set format x "%y-%m-%d" # display date format
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set xrange ["2022-07-11":"2022-10-31"] # x-axis value-range
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set yrange [0:600] # y-axis value-range
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set key inside # graph legend style
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set xtics rotate by -45 # rotate dates on x-axis 45deg for cleaner display
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set title 'hsadmin-ng Projektfortschritt' # graph title
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set terminal png # output format
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set term png size 920, 640 # output canvas size
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set output 'TODO-progress.png' # output file name
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plot '.todo-progress.csv' using 1:2 with linespoints linetype rgb "black" linewidth 2, \
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'' using 1:3 with linespoints linetype rgb "red" linewidth 2, \
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'' using 1:4 with linespoints linetype rgb "green" linewidth 2, \
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'' using 1:5 with linespoints linetype rgb "blue" linewidth 2, \
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'tools/todo-progress-line.csv' using 1:2 with linespoints linetype rgb "gray" linewidth 1 \
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