GIS 6005 LAB 6

 One spotlight of this week's lab was proportionate symbol mapping. The objective for this section of the lab was to map values related to job growth from 2007-2015 in order to see which areas had positive and negative growth. There was a challenge in mapping the negative job growth, because the values in the attribute table were negative, thus unable to be mapped using ArcGIS Pro's proportionate symbology. To overcome this, the negative values were exported to a new feature class using an attribute function, and a new field was added which calculated the absolute value of the negative job growth, eliminating the negative variable. These values were then plotted like normal, under the alias of "jobs lost." 


Another section of the lab introducing Bivariate mapping. This particular symbology style is helpful for showing relationships between variables in one map. In order to prepare classes for mapping, the number of breaks, and the values which constitute a break, need to be established by using ArcGIS Pro's Symbology Pane, and selecting "Natural Breaks" to see the progression of breaks amongst values, and using "Manual Intervals" to establish the number of classes. Ultimately, I was am happy to know this style of mapping exists, because it is totally new to me and I can apply it in my day to day work.



 

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