[Gnuplot-info] Problem in a time series on leap years

[pacomet <pa...@gm...>]

Hi everyone

I'm plotting yearly time series data and a problem appears with leap
years. A data file contains 12 rows, each one corresponding to a
month. First column of each row is the date in format YYYYMM
(200801).

The gnuplot script lines refering x axis are

set timefmt "%Y%m"
set xlabel "Month"
set xdata time
set format x "%m"

When plotting a non leap year the graph looks fine (http://www3.uji.es/
~fpastor/research/sst/1989-SST.png<http://www3.uji.es/%7Efpastor/research/sst/1989-SST.png>)
but when plotting a leap year an
extra month (with no data) appears to the right of the graph (http://
www3.uji.es/~fpastor/research/sst/2008-SST.png<http://www3.uji.es/%7Efpastor/research/sst/2008-SST.png>
).

I can't figure out what's happening here.

Any idea or help would be appreciated. Thanks in advance.


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