Hi,
Thank you Alexander, your solution seems to work!
Best, Maarten
Hi,
yes, the quotes are indeed tricky... The challenge is to provide the
correct mix of escaped and un-escaped single and double quotes to Python
/ ArcGIS as in this Python example:
gp.select_analysis("nfroads.shp", "pave
Hi,
yes, the quotes are indeed tricky... The challenge is to provide the
correct mix of escaped and un-escaped single and double quotes to Python
/ ArcGIS as in this Python example:
gp.select_analysis("nfroads.shp", "paved.shp",
' "ROAD_CLASS" = \'PAVED\' ')
In order to achieve this, the
Andrew, thanks for your reply!
I tried exactly your command, but still the resulting rpygeo.py file
contains the following line:
gp.select_analysis( "nfroads.shp", "paved.shp", "\"ROAD_CLASS\" = 'PAVED' "
)
So the \"ROAD_CLASS\" = 'PAVED' is still surrounded by double quotes ("). I
have tried ma
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From: r-sig-geo-boun...@stat.math.ethz.ch on behalf of Maarten van Strien
Sent: Thu 17/12/2009 9:06 PM
To: r-sig-geo@stat.math.ethz.ch
Subject: Re: [R-sig-Geo] RPyGeo Query -- probably easy
Hi All,
I was wondering i
Hi All,
I was wondering if anyone has found a solution to the mentioned problem, as
I have a similar problem with a query function in RPyGeo.
I am trying to use the 'select_analysis' ArcGIS function that uses an sql
expression to select certain values/names from a field in an attribute
table. Th
well, these are two separate Python commands:
gp.makefeaturelayer("abc.shp", "walk")
gp.SelectLayerByAttribute('walk','NEW_SELECTION','\"hrwk05\" <> 0')
but this...
> rpygeo.geoprocessor(
> "makefeaturelayer('abc.shp','walk')",
> "SelectLayerByAttribute('walk','NEW_SELECTION','\"hrwk05\" <> 0
On Mon, 13 Apr 2009, Zev Ross wrote:
Hi Alex,
Thank you so much for the suggestion and apologies for taking so long to test
it. I think the quotes are still a problem. I do indeed write all my code in
R-WinEdt but must be doing something wrong. In Python your suggested escaped
quotes works f
Hi Alex,
Thank you so much for the suggestion and apologies for taking so long to
test it. I think the quotes are still a problem. I do indeed write all
my code in R-WinEdt but must be doing something wrong. In Python your
suggested escaped quotes works fine but perhaps I missed something in
Hi Zev,
the problems are definitely your quotes. First, they are syntactically
incorrect - I count seven double quotes (I recommend using some editor
with syntax highlighting, like Tinn-R or R-WinEdt, this helps discover
mismatches). Second, escaping them (\") should allow you to put double
q
Hi All,
I'm wondering if anybody could give me a little guidance on formatting a
query using RPyGeo. I'm excited to be able to run Python geoprocessing
functions straight from R but am having trouble with the quote, double
quote kinds of issues.
Here's an example of what I'd like to run
rpy
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