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Mapping with ArcGIS Pro by Ryan Malhoski, Amy Rock

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Age (Color)

Age (Color) style is used to symbolize your features based on the amount of time that has passed since the date/time in your attribute by color. When you select this style, the date/time in your attribute will be used as the base date/time and the color symbol will show the amount of time, based on the units you choose, for a date selected by you. For example, this style can show the number of years that have passed since a house was sold. This can show patterns of where houses are being sold recently. If your data has another date/time field, you can also choose that to calculate the amount of time that has passed between the two fields. This style can only show one unit of time for its calculations, so you must choose from years, ...

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