1

I´m working on a suitability analysis for which I´m doing a sensitivity analysis.

When I modify the weights for this analysis I have values with decimals, so I can´t use "weighted overlay" tool.

Can I use "weighted sum" tool (considering that the weights I use sum 1)?

1

Yes you can use Weighted Sum since your weights are decimals and as long as the total equals to 1, so there is no problem.

I will quote from the help above:

A useful way to add several rasters together is to input multiple rasters and set all weights equal to 1.

Input rasters can be integer or floating point.

0

Yes you can. Esri's Weighted Sum page provide the following usage details:

enter image description here

A useful way to add several rasters together is to input multiple rasters and set all weights equal to 1.

Input rasters can be integer or floating point.

The weight values can be any positive or negative decimal value. It is not restricted to a relative percentage nor does it need to be equal to 1.0.

The weight will be applied to the specified field for the input raster. Fields can be of type short or long integer, double or float.

By default, this tool will take advantage of multi-core processors. The maximum number of cores that can be utilized is limited to four.

If you want the tool to use fewer cores, use the parallelProcessingFactor environment setting.

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.