https://community.esri.com/t5/arcmap-questions/calculate-joint-distribution-of-2-raster-data/m-p/1179770#M3820 <P>Hi, I want to calculate the Night Light Development Index (NLDI). For this reason I have a data set of raster:</P><UL><LI>night-time lights satellite image</LI><LI>population count raster.</LI></UL><P>The rasters have the same extent, dimensions and CRS. In order to calculate the NLDI I need to compute the joint distribution of the rasters and to create a table like in the image attached. Is there a way to compute the population count by night-time lights class? I tried to do it in an other GIS software using a command called <EM>Cross-tabulation</EM> but the result was wrong. The paper I am following is named "<EM>An empirical assessment of human development through remote sensing_Evidences from Italy</EM>". The dataset can be found <A href="https://drive.google.com/drive/folders/16xGp5tUNQmxwHyrNhRjvVB3HsKNs0WPh?usp=sharing" target="_self">here</A>. Thank you.<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="population count by night-time light level class" style="width: 999px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/42716iEFD42C93E7F99ADF/image-size/large?v=v2&amp;px=999" role="button" title="Screenshot 2022-06-03 115743.png" alt="population count by night-time light level class" /><span class="lia-inline-image-caption" onclick="event.preventDefault();">population count by night-time light level class</span></span></P> Fri, 03 Jun 2022 12:09:27 GMT nik_geo 2022-06-03T12:09:27Z https://community.esri.com/t5/arcmap-questions/calculate-joint-distribution-of-2-raster-data/m-p/1179770#M3820 <P>Hi, I want to calculate the Night Light Development Index (NLDI). For this reason I have a data set of raster:</P><UL><LI>night-time lights satellite image</LI><LI>population count raster.</LI></UL><P>The rasters have the same extent, dimensions and CRS. In order to calculate the NLDI I need to compute the joint distribution of the rasters and to create a table like in the image attached. Is there a way to compute the population count by night-time lights class? I tried to do it in an other GIS software using a command called <EM>Cross-tabulation</EM> but the result was wrong. The paper I am following is named "<EM>An empirical assessment of human development through remote sensing_Evidences from Italy</EM>". The dataset can be found <A href="https://drive.google.com/drive/folders/16xGp5tUNQmxwHyrNhRjvVB3HsKNs0WPh?usp=sharing" target="_self">here</A>. Thank you.<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="population count by night-time light level class" style="width: 999px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/42716iEFD42C93E7F99ADF/image-size/large?v=v2&amp;px=999" role="button" title="Screenshot 2022-06-03 115743.png" alt="population count by night-time light level class" /><span class="lia-inline-image-caption" onclick="event.preventDefault();">population count by night-time light level class</span></span></P> Fri, 03 Jun 2022 12:09:27 GMT https://community.esri.com/t5/arcmap-questions/calculate-joint-distribution-of-2-raster-data/m-p/1179770#M3820 nik_geo 2022-06-03T12:09:27Z