topic Model Builder - Summing daily rasters by week in Science Questions https://community.esri.com/t5/science-questions/model-builder-summing-daily-rasters-by-week/m-p/788822#M10 <HTML><HEAD></HEAD><BODY><P>I have a set of about 150 daily rasters derived from MODIS images (to start with, really 16 years worth).&nbsp; I want to make a model that will take seven at a time and sum them, so there is a weekly summary.</P><P>I am working with model builder, and I think I have several sub-tasks:</P><OL><LI>Select seven rasters&nbsp;</LI><LI>Run them (with Feedback) through the Sum tool</LI><LI>Name the sum (based on the last day of my selection).</LI><LI>Select the next seven rasters ...</LI><LI>Until my file of rasters is empty.</LI></OL><P>I was wondering about making sure my iterator did not start at the top again.I have been messing with the raster iterator, the For tool, and have had minimal success.&nbsp; &nbsp; &nbsp;Any advice?</P><P></P><P>I have been considering trying to do this with python, which is a minimal skill for me, or doing it with brute force.</P></BODY></HTML> Fri, 05 Apr 2019 00:03:38 GMT SarahMcCabe 2019-04-05T00:03:38Z Model Builder - Summing daily rasters by week https://community.esri.com/t5/science-questions/model-builder-summing-daily-rasters-by-week/m-p/788822#M10 <HTML><HEAD></HEAD><BODY><P>I have a set of about 150 daily rasters derived from MODIS images (to start with, really 16 years worth).&nbsp; I want to make a model that will take seven at a time and sum them, so there is a weekly summary.</P><P>I am working with model builder, and I think I have several sub-tasks:</P><OL><LI>Select seven rasters&nbsp;</LI><LI>Run them (with Feedback) through the Sum tool</LI><LI>Name the sum (based on the last day of my selection).</LI><LI>Select the next seven rasters ...</LI><LI>Until my file of rasters is empty.</LI></OL><P>I was wondering about making sure my iterator did not start at the top again.I have been messing with the raster iterator, the For tool, and have had minimal success.&nbsp; &nbsp; &nbsp;Any advice?</P><P></P><P>I have been considering trying to do this with python, which is a minimal skill for me, or doing it with brute force.</P></BODY></HTML> Fri, 05 Apr 2019 00:03:38 GMT https://community.esri.com/t5/science-questions/model-builder-summing-daily-rasters-by-week/m-p/788822#M10 SarahMcCabe 2019-04-05T00:03:38Z