topic Re: In visual variable what does that mean of "field " and "normalizationField" means is it two different column name ?? in ArcGIS JavaScript Maps SDK Questions

In visual variable what does that mean of "field " and "normalizationField" means is it two different column name ??

AnupamSharma — Sun, 21 Jul 2019 10:39:24 GMT

Re: In visual variable what does that mean of "field " and "normalizationField" means is it two different column name ??

LanceCole — Sun, 21 Jul 2019 19:20:49 GMT

The “field”value is the field name in your data whose values you want to display. The “normalizationField” property contains the attribute field name used for normalization of the data.

Please see colorInfo_visualVariable | ArcGIS for Developers

Re: In visual variable what does that mean of "field " and "normalizationField" means is it two different column name ??

AnupamSharma — Mon, 22 Jul 2019 06:20:50 GMT

can you please explain me with examples Lance Cole as i am still not getting about normalization field

Re: In visual variable what does that mean of "field " and "normalizationField" means is it two different column name ??

LanceCole — Mon, 22 Jul 2019 12:22:47 GMT

Anupam,‌

Look at it this way, if your field value has "number of cars" in a City and the normalizing field has "population" of the City, the ratio of these two numbers is used to determine the symbol size and would represent "number of cars per person". If the normalization field is not set or provided the symbol would be based exclusively on "number of cars".

Another example if the field value was "total personal income" and the normalization field was "number of households" the symbol size or attributes would be determined on "personal income per household" or personal income divided by number of households.

Simply, the field value is divided by the normalization value giving a ratio for use.