Question anchor in Formula and Filter tool

[Soma_0991]

Hi All,

I am trying to learn Interface tools in Alteryx. My question why does Formula and Filter tools has Question anchor. How to use them? Please help.

 

[gawa]

@Soma_0991 When the Interface tool is connected to Q-anchor, the value of the Interface tool can be used as variable [#1] of the expression editor. So the tool that has expression editor like the Formula, the Filter have Q-anchor.