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Xtics time_data
In case of timeseries data, axis tic position values must be given as quoted
dates or times according to the format timefmt. If the 4#4start5#5, 4#4incr5#5, 4#4end5#5
form is used, 4#4start5#5 and 4#4end5#5 must be given according to timefmt, but
4#4incr5#5 must be in seconds. Times will be written out according to the format
given on set format, however.
Examples:
set xdata time
set timefmt "%d/%m"
set xtics format "%b %d"
set xrange ["01/12":"06/12"]
set xtics "01/12", 172800, "05/12"
set xdata time
set timefmt "%d/%m"
set xtics format "%b %d"
set xrange ["01/12":"06/12"]
set xtics ("01/12", "" "03/12", "05/12")
Both of these will produce tics "Dec 1", "Dec 3", and "Dec 5", but in the
second example the tic at "Dec 3" will be unlabelled.
2011-06-10