* Expressions in a Diagram

[gsward]

I would like to be able to colour code the boxes in a descendant diagram when a particular place occurs in a specific census year.

%INDI.CENS[year=1841]% identifies the year.

The place element is in the second part of the place, but I cannot work out how to search for it and combine with the expression above.

Thanks,

Graham

[tatewise]

You need to use the =TextPart(...) function.
e.g.
=TextPart( %INDI.CENS[year=1841].PLAC%, 2 ) to extract 2nd part of Census Place field.

That must be tested against the place name within the =IsTrue(...) function.
e.g.
=IsTrue( TextPart( %INDI.CENS[year=1841].PLAC%, 2 ) = "London" )

There are examples of similar expressions in how_to:understanding_expressions|> Understanding Expressions under Fact & Name Fields.

I assume you know that expressions applies to the Diagram > Options > Boxes > << Add Condition > Expression feature.

[gsward]

Thank you, Mike (again). I realised this would be useful in "seeing" where people were in their census family groups.

Graham