[Gnuplot-info] Problem with date format

[Cameron H. <ca...@ne...>]

Hi folks,

I'm using the Debian version of gnuplot 4.2 patchlevel 2.

I have a file (data.dat) with two columns. The first contains 
dates and the other contains measured data:

03/03/2007 89.8	  
04/04/2007 85.4
05/05/2007 79.0
12/06/2007 78.3
18/07/2007 77.0
13/09/2007 65.6
29/12/2007 65.0

I wish to graph my data (y axis) against the date (x axis).
I want the x axis to show day of the month and the month, and
 increment weekly. So I use the following list of commands:



set xdata time
set timefmt "%d/%m/%Y"
set format x "%d/%m"
set xtics "03/03/2007",604800 # number of seconds in a week
plot "data.dat" using 1:2 notitle



The output isn't what I expect. The major tics all seem to round to
the first day of the month and several minor tics appear after each
major. If I change a few things around --- for example, change the x
format to other units, change the increment size, etc, the same thing
happens. All xtics round to the nearest first of the month.

The data itself plots correctly

I've looked through the documentation but I seem to be missing
something fairly obvious. Can anyone help?

-- 

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Cameron Horsburgh

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