Problem:  Unable to symbolize CSV data by quantity

【相关信息】
Article ID: 43114
Bug Id: N/A
Software:
ArcGIS for Desktop Advanced 10.2, 10.2.1, 10.2.2
ArcGIS for Desktop Standard 10.2, 10.2.1, 10.2.2
ArcGIS for Desktop Basic 10.2, 10.2.1, 10.2.2
Platforms: N/A

【问题描述】
When symbolizing a numeric field in ArcMap in the Layer Properties dialog box on the Symbology tab under Quantities and under Graduated colors, a blank Field Value drop-down list results from generating data using the CSV file.

【原因】
String fields cannot be symbolized. Symbolizing by quantity requires a numeric field.


In the Symbology tab, the Graduated colors option is often used to symbolize the fill of a polygon with quantities. Quantities are typically used with quantitative data or numeric fields, while categories are typically used with qualitative data, string fields, or text fields.