https://community.esri.com/t5/arcgis-spatial-analyst-questions/pc1-calculation-in-10-8/m-p/1382711#M12121 <P>When you run the tool, in the geoprocessing pane, there is an option to specify the number of Principal Components (or bands) that you need. This would be equivalent to the number of bands or axes that are created, so just write 1 of you want a 1 band image that summarizes most of the variation of the input images.&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="PCA.png" style="width: 471px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/94861i335C6411014A26C2/image-size/large?v=v2&amp;px=999" role="button" title="PCA.png" alt="PCA.png" /></span></P> Thu, 15 Feb 2024 09:29:01 GMT MervynLotter 2024-02-15T09:29:01Z https://community.esri.com/t5/arcgis-spatial-analyst-questions/pc1-calculation-in-10-8/m-p/1382706#M12120 <P>Principal Components in ArcGIS perform Principal Component Analysis (PCA) on a set of raster bands and generate a single multiband raster as output. If I need PC1 as only a raster band, then how do I get it?&nbsp;</P> Thu, 15 Feb 2024 09:14:31 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/pc1-calculation-in-10-8/m-p/1382706#M12120 MdMahmudulHasan 2024-02-15T09:14:31Z https://community.esri.com/t5/arcgis-spatial-analyst-questions/pc1-calculation-in-10-8/m-p/1382711#M12121 <P>When you run the tool, in the geoprocessing pane, there is an option to specify the number of Principal Components (or bands) that you need. This would be equivalent to the number of bands or axes that are created, so just write 1 of you want a 1 band image that summarizes most of the variation of the input images.&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="PCA.png" style="width: 471px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/94861i335C6411014A26C2/image-size/large?v=v2&amp;px=999" role="button" title="PCA.png" alt="PCA.png" /></span></P> Thu, 15 Feb 2024 09:29:01 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/pc1-calculation-in-10-8/m-p/1382711#M12121 MervynLotter 2024-02-15T09:29:01Z