10

I'm attempting to use QGIS v2.0.1 to accomplish the same tasks that I can do using ArcMap v10.1 and I'm running into some trouble finding equivalent tools. In ArcMap I am using the Focal Statistics (mean) Spatial Analyst tool and I do not know if GRASS or SAGA has an equivalent in QGIS.

Does anyone know what the tool would be called if it exists?

  • Thank you guys for your answers! I'll try it and come back to say if it works well :) – NicolasT Nov 30 '17 at 11:30
12

Sure, have for instance a look at the r.neighbors tool available through the processing-toolbox with GRASS support enabled. It has a similar functionality as the Focal Statistics tool.
I will also soon add a generic filter function to my QGIS plugin LecoS (needs installed Scipy), which can do the same stuff, but uses python+scipy as backbone.

2

Still in QGIS 2.4 there are no focal statistics, i.e. filters, per se, and I do not think that there will be any in the future. However, SAGA can be reached via the Processing tool box. In the SAGA command list you can choose Grid - Filter and then you have plent of a choice. I suggest using the "user defined filter" if you know what you are doing or the "simple filter" if it is all about smoothing.

cheers

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.