How to edit/replace or extrapolate all the indixees with a specific value from a list

J-Rob · September 23, 2021, 2:11pm

Dear GH Community,

I need a little help.
Is possible to modify the value of all the indixees that have the same value in a list?
For example, all the indixeees that have an item with a value of 1, make them become for example 2 value?

Or, is it possible to extrapolate all the numbers of the indices that have a certain value?
Sorry, if they may seem trivial and stupid questions to you experts

Thanks and best regards

HS_Kim · September 23, 2021, 2:23pm

You could use Expression.

J-Rob · September 23, 2021, 2:45pm

Many thanks @HS_Kim. Any suggestion about the second request?

Jack_Young · September 23, 2021, 2:55pm

Try using ‘member index’, that will give you the index of all the values equal to eg.1. You could then use ‘replace items’ using these indices to change them to another value.