topic Re: Hello Geonet community?When performing overlay weighted analysis,must all your criteria have to be reclassified into a uniform scale (let's say 5 classes) or you can have some with 3 classes? in ArcGIS Spatial Analyst Questions

Hello Geonet community?When performing overlay weighted analysis,must all your criteria have to be reclassified into a uniform scale (let's say 5 classes) or you can have some with 3 classes?

BibianRobert — Fri, 01 Feb 2019 15:01:57 GMT

suitability‌

reclassification‌

weighted overlay‌

#gis

My initial goal was to use 5 classes, however, I am dealing with soil dataset which can only be reclassified into 3 classes based on my area of study, the other datasets include slope, roads, rivers, land use landCover etc which can be reclassified into 5 classes.

Re: Hello Geonet community?When performing overlay weighted analysis,must all your criteria have to be reclassified into a uniform scale (let's say 5 classes) or you can have some with 3 classes?

XanderBakker — Fri, 01 Feb 2019 15:08:28 GMT

You do not have to classify all the input into 5 classes. If a raster with 5 classes has values from 1 to 5, another raster could have 3 classes and use values 1, 3 and 5. The weights assigned to each raster will determine the influence of that raster on the result.

Re: Hello Geonet community?When performing overlay weighted analysis,must all your criteria have to be reclassified into a uniform scale (let's say 5 classes) or you can have some with 3 classes?

BibianRobert — Fri, 01 Feb 2019 15:13:54 GMT

I did try this and got an output of 4 classes instead of the intended 5 classes.

Re: Hello Geonet community?When performing overlay weighted analysis,must all your criteria have to be reclassified into a uniform scale (let's say 5 classes) or you can have some with 3 classes?

XanderBakker — Fri, 01 Feb 2019 19:17:01 GMT

Can you provide some screenshots of your input data and the configuration of the tool?