Hi,<br>
<br>
I need some help in doing something that should be fairly simple - but i'm not familiar with postgresql.<br>
<br>
i have:<br>
- a GRASS file of some 40 points which are met. stations in India. <br>
v.db. select gives the following info FYI(subset)<br>
<br>
<span style="color: rgb(204, 0, 0);">cat|INDEX|STATION|LONG|LAT</span><br style="color: rgb(204, 0, 0);">
<span style="color: rgb(204, 0, 0);">1|43296|Bangalore|77.666389|12.949722</span><br style="color: rgb(204, 0, 0);">
<span style="color: rgb(204, 0, 0);">2|43197|Belgaum|74.505556|15.847222</span><br style="color: rgb(204, 0, 0);">
<span style="color: rgb(204, 0, 0);">3|43205|Bellary|76.917222|15.137500</span><br style="color: rgb(204, 0, 0);">
<span style="color: rgb(204, 0, 0);">4|43125|Bidar|77.333333|18.083333</span><br style="color: rgb(204, 0, 0);">
<span style="color: rgb(204, 0, 0);">5|43259|Balehonnur|75.464658|13.35130<br>
<br>
<span style="color: rgb(0, 0, 0);">- i also have corresponding for each point, a text file which contains 10 years of meteor0logical data.<br>
<br>
what i ultimately want to do:<br>
1. Link each file to each point;<br>
2. So that i can extract any slice of data for all stations; and make
either individual vector maps; interpolate the same; calculate
derived variables and create new columns; get monthly sums from daily;
and related operations...<br>
<br>
I've looked up online for individual v.* and d.* commands that seem to be related, but dont quite know how to go about it.<br>
Can someone provide a simple algorithm to follow? I assume that i have to link the 'cat' identifier somehow to each file?<br>
<br>
thanks!<br>
vishal<br>
</span></span>