AS NUMERIC PRO
AS NUMERIC SOFTWARE

ArcMap: Fundamentals of field calculations.Problem: The Add Field and Delete Field options are inactive in the attribute table.How To: Convert a number field to a string field.The final expression should look similar to following:.Scroll to the Requests list and double-click AsNumber.Double-click the string field from the Fields list.Open the table, and Start Editing if necessary.Use Field Calculator to copy the values to the new field and convert the values to a number Select Stop Editing from the Table menu and save the edits.Set Decimal Places to the desired number, for example '6'.Set Width to an appropriate number, for example '32'.Set Name to an appropriate name, for example 'Area'.Open the table and select Start Editing from the Table menu.To convert a string field to a number field, create a new number field, and copy the values from the original field to the new field.

The instructions described below are informational only. If a string field contains values with non-numeric characters or symbols, the value of that cell remains by default when converting to the numeric field.ĪrcView GIS is a retired product as of December 2012. Once the script is complete, the numeric field is populated with the values from the string field. The following is entered in the Expression text box: In the Expression Fields list window, locate and double-click the string field containing the attributes that must be transferred to the newly created numeric field.

The Input Table, Field Name, and Expression Type are automatically filled.

The Calculate Field geoprocessing dialog box opens.

Right-click the header of the newly created numeric field, and select Calculate Field.

On the top ribbon (of the Fields tab), Save the edits to the table, and close the Fields view.

If necessary, set the domain, default, and length values of the field.

All characters will be changed to NA, FALSE->0, TRUE->1. The numeric is in fact a double type, so the objects should be abled to coerced to double type.

Set the Number Format to Numeric and adjust the settings as desired. as.numeric(x) function converts object of other types to numeric type.

Long or Double field types are most common.

In the Fields list view, set the following properties:.

Click the Add button to create a new field.

Right-click the data or table in the Contents pane, and select Attribute Table.

AS NUMERIC PRO

Open an ArcGIS Pro project, and add the applicable data or table to the project.

AS NUMERIC SOFTWARE

Three solutions are described below the first pertaining to ArcGIS Pro 1.x and 2.x the second solution is for ArcGIS Desktop 10.x and the third is for older software (such as ArcView GIS 3.x). To preserve data integrity (especially if sharing or importing data from outside sources), the method for converting fields to different types is to copy the data to a new field of the desired type.

In some scenarios, it is necessary to convert a field of string (text) values in an attribute table to numeric values, typically because the original data type was not set or recognized, or so that proper data analysis can be performed. How To: Convert a string field to a numeric field Summary

As numeric