[GRASS-user] t.rast.mapcalc error

[Veronica Andreo]

Hi Soeren,

yes, i've tested it... both the map and the strds are fine, in fact
t.rast.mapcalc works just fine when i use a different map with the target
strds and viceversa, when i use the map of maximums in question with a
different strds... boh...

I tried again, but changing the name of the resulting maximum map to
something that did not include any of the name of the strds...and it
worked!

So, I guess there was maybe "interference" between map names and parsing
method... is that possible?

Here the details with the real names and after changing the maximum name:
http://pastebin.com/PPVizfE2 in case they are useful for further advice :)

Problem solved! I'm so sorry for bothering! and thank you very much for
such a quick response and help!

Best! :)
Vero



2014-07-27 19:13 GMT-03:00 Sören Gebbert <soerengebbert at googlemail.com>:

> Hi Veronica,
> i have tested the strds/map comparison and it works for me with the
> latest grass7.1 build. Can you please check if the max_my_strds map
> exists and has valid values and that all maps in the strds exists and
> have valid values?
>
> Best regards
> Soeren
>
> 2014-07-27 23:24 GMT+02:00 Veronica Andreo <veroandreo at gmail.com>:
> > Hi Soeren, Markus and list,
> >
> > I'm having trouble with t.rast.mapcalc... these are the commands I'm
> using:
> >
> > # get the max value for each pixel in the strds
> > t.rast.series input=my_strds method=maximum output=max_my_strds
> >
> > # then, i need to compare all values in the strds with the map of
> maximums
> > and whenever it's the same value, save the start_doy, otherwise null
> > t.rast.mapcalc -n inputs=my_strds output=date_max_my_strds \
> > expression="if(my_strds == max_my_strds,start_doy(),null())"
> > basename=date_max_my_strds
> >
> > # to get a map with dates of maximum values afterwards
> > t.rast.series input=date_max_my_strds method=maximum
> > output=series_date_max_my_strds
> >
> > This is the error I'm getting in newly compiled GRASS 7
> >
> > Start temporal sampling
> > Start mapcalc computation
> > Invalid map <max_cla_hants25_corrected_1>
> > Parse error
> > ERROR: parse error
> > ERROR: Error while mapcalc computation
> >
> > However, when i follow the exact same steps, but using an older map of
> > maximums (created a month ago or so), it works just fine... that's the
> only
> > difference i've found... this used to work a couple of weeks ago...
> >
> > Am I doing something wrong? Or is it no longer possible to compare all
> maps
> > in strds with a single map??? Please, help!
> >
> > Thanks much in advance!
> >
> > Best,
> > Vero
>
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