=?GBK?B?zfW1wrvU?= wrote:
How to calculates linear regression from three or more raster maps £¨X1 = a +
bX2 + cX3 +dX4 + ...)?
r.series with a method of slope, offset and/or detcoeff.
--
Glynn Clements gl...@gclements.plus.com
___
grass-user
I want to caculate linear regression function of X1 raster map to X2,X3,X4.
r.series can not do it.
Thanks!
dehui
在2013-02-22 16:02:00,王德辉deh...@gig.ac.cn写道：
=?GBK?B?zfW1wrvU?= wrote:
How to calculates linear regression from three or more raster maps £¨X1 = a
+ bX2 + cX3 +dX4 + ...)?
On Fri, Feb 22, 2013 at 9:44 AM, 王德辉 deh...@gig.ac.cn wrote:
I want to caculate linear regression function of X1 raster map to X2,X3,X4.
The addon r.regression.multi (GRASS 7 only) does that [0].
Markus M
[0] http://grasswiki.osgeo.org/wiki/AddOns/GRASS7/raster#r.regression.multi
r.series
Hi,
if you are able to test it with the 6.4.3svn, release candidate or the
version 7, please do. There were some changes (some only in 7) which
may affect your problem.
Vaclav
On 20 February 2013 14:57, Marcello Benigno benigno.marce...@gmail.com wrote:
Just one more information,
I made some
I'm trying to use r.stream.order to get a vector with the full set
of stream orders and topological attributes, but it errors with the
need for a flow accumulation map as follows:
r.stream.order --o -a streams=str dirs=fdir elev=dtm_full
vect=stream_order
Hi list!
Just wanted to drop a note on EVI2. It looks and performs better than NDVI
(tested with large Landsat5TM-based mosaics over Greece). It sure helps
visual discrimination of dense vegetation from the rest.
Will post screenshots at some point laaater (in the Wiki of course) -- using
On 22/02/13 09:02, Glynn Clements wrote:
=?GBK?B?zfW1wrvU?= wrote:
How to calculates linear regression from three or more raster maps £¨X1 = a +
bX2 + cX3 +dX4 + ...)?
r.series with a method of slope, offset and/or detcoeff.
Does r.series allow multiple regression ? How would you get
On 22/02/13 13:32, Moritz Lennert wrote:
On 22/02/13 09:02, Glynn Clements wrote:
=?GBK?B?zfW1wrvU?= wrote:
How to calculates linear regression from three or more raster maps
£¨X1 = a + bX2 + cX3 +dX4 + ...)?
r.series with a method of slope, offset and/or detcoeff.
Does r.series allow
On 21/02/13 18:42, katrin eggert wrote:
Dear Nikos,
thank you for your reply. Just two questions:
1- Which one is better to produce composites? I mean, more easier and
stable?
As Nicos said, you have to try out for yourself. Most people will
probably find QGIS easier in terms of interactive
I want to write a module to automatically do a large number of
import/process/export tasks , but I cannot figure out how to run
v.in.ogr from C program (I do not understand how to process and
export, but maybe I can understand it after getting import).
I've this functionality working on a Python
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 22/02/13 14:40, Jos￩ Mar￭a Michia Roberts wrote:
I want to write a module to automatically do a large number of
import/process/export tasks ,
but I cannot figure out how to run v.in.ogr from C program (I do not
understand how to
process and
Hello all.
is it possible to bars in ps.map - like you would do in v.thematic.chart ?
Martin
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I am trying to re-project raster maps that have been re-classed. They
are not showing up in the new mapset. What should I do? I can provide
any information that is necessary to help solve this problem.
many thanks,
--
Stephen Sefick
**
Auburn
From a comment on line 74 of main.c it looks like the accumulation map is
required when calculating the Strahler stream order.
in_acc_opt-key = accum; /* required if strahler stream order is
calculated for existing stream network */
in_acc_opt-type = TYPE_STRING;
in_acc_opt-required = NO;
Thanks,
On 02/22/2013 05:17 PM, jentjr wrote:
From a comment on line 74 of main.c it looks like the accumulation map is
required when calculating the Strahler stream order.
Actually you *can* create a raster stream order map based on
Is there tool somewhere, including in the new temporal GIS modules, to sample
the value of a raster series at one cell location? I'd like to get text
something like this for a cell that I specify with xy coordinates or a cat:
map1, value 1
map2, value 2
map3, value 3
map4, value 4
map5, value 5
On Fri, Feb 22, 2013 at 6:41 PM, Michael Barton michael.bar...@asu.edu wrote:
Is there tool somewhere, including in the new temporal GIS modules, to
sample the value of a raster series at one cell location? I'd like to get
text something like this for a cell that I specify with xy coordinates
I have reclassed a raster with the rules
1=115
2=115
and it no longer shows up... qgis will display the raster, but not in
grass. Is there a color table that I should use? Or some other problem?
--
Stephen Sefick
**
Auburn University
But I want to do it with a time series of hundreds or thousands of maps.
Michael
__
C. Michael Barton
Director, Center for Social Dynamics Complexity
Professor of Anthropology, School of Human Evolution Social Change
Arizona State University
Tempe, AZ 85287-2402
Hi users,
Can someone help with this doubt of mine?
When I run r.report on a raster, it says that 48% of my cells have no no
data - does this refers to NULL cells? (if so, than it's ok, otherwise I
must recheck my data).
Thanks in advance
--
Thanks Doug,
I knew I could do it with a script and v.what.rast.
What I was hoping was that there is a shortcut already usable in GRASS modules.
Looks like the new temporal GIS tools may be able to do it.
Michael
__
C. Michael Barton
Director, Center for Social
On Fri, Feb 22, 2013 at 7:23 PM, Michael Barton michael.bar...@asu.edu wrote:
But I want to do it with a time series of hundreds or thousands of maps.
Sure, I feed the output of g.mlist to r.what (using for example the
1440 MODIS LST
maps of a year as input).
Markus
On Friday 22 of February 2013 19:20:56 ALT SHN wrote:
Hi users,
Hi!
Can someone help with this doubt of mine?
When I run r.report on a raster, it says that 48% of my cells have no no
data - does this refers to NULL cells? (if so, than it's ok, otherwise I
must recheck my data).
Yes, it
Very cool. Your graph is what I'm trying to do also.
What I'm doing is running a agent-based model (ABM) of small-holder
agropastoral land-use in Java that is dynamically coupled to a landscape
evolution model in Python and GRASS. One of the outputs is a map of net
erosion/deposition in each
Hi,
Am 22.02.2013 21:44 schrieb Newcomb, Doug doug_newc...@fws.gov:
t.create-- t.register-- t.vect.observer.strds in GRASS7 ? Looks
really nifty, could be useful with the Landsat Cube data sets
http://landsat.usgs.gov/documents/Oct27_29_2009_huang_LST_boston.ppt
Yes, thats the idea. I
Martin Album Ytre-Eide wrote:
is it possible to bars in ps.map - like you would do in
v.thematic.chart ?
can you post an image of what you mean?
thanks,
Hamish
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Stephen Sefick wrote:
I have reclassed a raster with the rules
1=115
2=115
and it no longer shows up... qgis will display the raster, but not in
grass.
That is weird! Usually it is Quantum that doesn't read, for whatsoever might
be the reason, some GRASS raster color tables.
You
Hi, d.vect.thematic has the parameter psmap but I've never tried.
http://grass.osgeo.org/grass64/manuals/d.vect.thematic.html
On 22 February 2013 22:19, Hamish hamis...@yahoo.com wrote:
Martin Album Ytre-Eide wrote:
is it possible to bars in ps.map - like you would do in
v.thematic.chart ?
Dear grass-user,
I am running the latest svn of GRASS 70 downloaded last night
(2/21/2013). When I am editing vectory lines using the digitize function in
the wxgui, it is hard to see the vertices or points on lines.
There used to be a small + sign that would appear over all vertices when
a
Hi,
2013/2/22 E.J. Neafsey enea...@lumc.edu:
I am running the latest svn of GRASS 70 downloaded last night
(2/21/2013). When I am editing vectory lines using the digitize function in
the wxgui, it is hard to see the vertices or points on lines.
vertices are disabled by default. Go to
Marcello -
That's not so hard. In Grass-GIS 6.4 (the version I'm on ATM) the
general form would be:
for i in `echo select distinct id from rainfall_time_series |
db.select -c`; do
## get year / month / day to use in output map name
year=`echo select year from rainfall_time_series where
That's it.Thank you Markus!
dehui
在2013-02-22 18:27:06,王德辉deh...@gig.ac.cn写道：
On Fri, Feb 22, 2013 at 9:44 AM, 王德辉 deh...@gig.ac.cn wrote:
I want to caculate linear regression function of X1 raster map to X2,X3,X4.
The addon r.regression.multi (GRASS 7 only) does that [0].
Markus M
I attempted to create
a v.select query using the “touch” option, which requires GEOS, and kept
getting an error code stating that the only “supported
operation is the overlap feature.”. the package manager states that libgeos
3.3.3 is installed,
so I’m perplexed. Is there anything im
charlie wrote:
I attempted to create a v.select query using the “touch” option,
which requires GEOS, and kept getting an error code stating
that the only “supported operation is the overlap feature.”.
the package manager states that libgeos 3.3.3 is installed,
so I’m perplexed. Is there
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