Hi Hamish and Micha,
Many thanks for your help.
I tried to generate a new rgb_column using v.colors, but that did not help.
When I submit "v.univar map=pse column=y2009", i get:
"number of features with non NULL attribute: 96
number of missing attributes: 0
number of NULL attributes: 0
minimum: 0.0947129
maximum: 0.388736
range: 0.294023
WARNING: Incompatible vector type(s) specified, only number of features,
minimum, maximum and range can be calculated"
To follow up on your earlier comment, submitting: v.db.connect -g map=pse layer=1 fs=";"
yields: 1/pse;pse;cat;C://test/poverty/sqlite.db;sqlite
Does this help?
Thanks again,
Roy
To: Micha Silver <[email protected]>, [email protected]
From: Hamish <[email protected]>
Date: 12/19/2010 04:43PM
Cc: [email protected]
Subject: Re: [GRASS-user] SQL Error using "v.color"
Roy:
> Hi Micha, To follow up on my problem and your fix, I am no longer
> getting the error message i used to get. When i look at the attribute
> table, however, the RGB_column variable (which i named `hc2' in my
> example) -- created by v.colors -- has a lot of missing values. Do
> you have an idea why this is the case?
one thing to try is to remove the hc2 column (v.db.dropcol) and try again.
what does v.univar say about the numerical column?
Hamish
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