Add a New Var w/o New Layer

Lindsey_Whittington

Very new to ArcGIS so sorry if this is a dumb question.

We are trying to add a new variable to a series of maps that have already been created, formatted, etc. I have tried doing this by merging the new variable using our unique key in "Append Data" but am unable to see the new variable in the var list when I do that. Any ideas? Using Arcade.

XanderBakker

Hi Lindsey Whittington ,

It is not entirely clear what you are trying to achieve and to avoid jumping to conclusions can you clarify:

• When you talk about a series of maps are that indeed maps or are you referring to a series of layers that contain the actual data?
• When you mention "merging a new variable" are you trying to add an attribute to the layer(s)?
• You mention "Append Data" using an unique key. Append will add additional rows/features to the data, but not attributes (fields/columns). This you could do using Join.
• When you mention "var list" do you mean the list of fields?
• You mention "Using Arcade". Are you trying to create dynamic content obtaining additional information from other layers using Arcade?