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#
# - Demonstrates use of columnhead(N) in a using specifier.
# - Demonstrates delayed evaluation of columnhead(N) in plot title
# - Demonstrates failure of 5.0 and 5.2.0 to terminate open-ended iteration
# at the front of a plot command.
#
$DATA << EOD
aA bB cC dD
4 8 6 7
8 5 7 3
3 8 4 6
1 2 9 10
EOD
set key box autotitle columnhead width 2 samplen 0
set key title "Columns"
set offset 1,1,1,1
set xlabel "Line in data file"
set ylabel "Column values"
set title "Point labels show which column they came from"
set xtics 1,1,4 format "line %.0g"
plot for [col=1:*] $DATA using (1+$0):(column(col)):(columnhead(col)[2:2]) with labels title columnhead(col)[2:2]
Click here for minimal script to generate this plot
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