Monthly Archives: June 2012

Cross tables in R, some ways to do it faster

In R to create a contingency table of the counts of the combination of two variables, I would normally resort to table(). But how fast is it? A question that becomes more relevant when working on large tables and when … Continue reading

Posted in Data handling, R computing environment | Tagged , , , , , , , , | 2 Comments

QGIS 1.8 “Lisboa” is out

The next version of QGIS has been released and ready for your enjoyment. See this link for more information about this release.

Posted in GIS, QGIS, Software release | Tagged , | 1 Comment

From attribute table to QGIS style file – step 1

I have a large number of GRASS vector layers with in the attribute table a RGB column defining the colours of the corresponding mapping units. Unfortunately, unlike GRASS, QGIS does not offer the option to to set colours from an … Continue reading

Posted in Data handling, GIS, GRASS GIS, QGIS | Tagged , , , , , | 5 Comments