Sas download map files

We wish to calculate the total number of incidents within each zip code and create a map that is color-coded according to this sum. We will need to provide SAS with data defining the zip code areas. Reading it in using proc mapimport , we can indicate to SAS the nature of the file and create a dataset that can be used with proc gmap.

In this dataset, each observation corresponds to a discontinuity in the outline of the area. Opening the file maps. Rectangular or nearly rectangular states like Wyoming and North Dakota can be described with just a few observations while states with irregular borders require more points to define their perimeter. When a state is composed of multiple areas, like Michigan and Hawaii, the segment value indicates which observations correspond to which area.

Once the shape file has been successfully read in and defined as a map, we can combine our data observed at the zip code level with the map. We will want to be able to match the zip code variable in both datasets together, so we first look at the contents of our map dataset to note the format and match it in our dataset.

Then we use proc sql to create a new dataset with one observation for each zip code that appears in our dataset with the sum of the incident variable. Zip codes in the vicinity that do not appear in our dataset may appear as gaps in our map since we are not observing anything about them.

In proc gmap , we provide both a dataset and a map. The variable name identifies the area IDs. The renewal order is a license update and it cannot be used to download software. To begin the download process, select the item in the table below which best meets your needs. For questions you may have about this download, please contact our Product Support Group. You are downloading software code "Code" which will become part of a software product "Software" that is currently licensed from SAS Institute Inc.

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