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new column with all value set to zero

AdamChoen

Hi
how can I create a new numeric column with all values are zero and not empty?

thanks!

Accepted answers

txnelson

dt<<new column("All Zeros", set each value(0));

See the Scripting Index for details about this

Help==>Scripting Index==>Data Table==>Column Scripting

All comments

txnelson

Create your new column, then go to the Column Info for the column, click on the down arrow for "Initialize Data" and select "Constant". Then enter in your "0" and clock OK

AdamChoen

thank Jim,
I forgot to ask for it, can I write it in JSL?

txnelson

dt<<new column("All Zeros", set each value(0));

See the Scripting Index for details about this

Help==>Scripting Index==>Data Table==>Column Scripting

AdamChoen

As always, work great. Thank you Jim

BSwid

For future searchers of a solution like this.

I wanted to do the same but with a character value like a file name for the source file upon import. It seems like you have to declare Character in the New Column function to get it to work right. Otherwise, it just populates with missing values. Thanks.

This didn't work:

dt << New Column(colName, Set each value(fileName));

This did:

names default to here(1);
dt = current data table();

colName = "SourceFile";
fileName = dt << get name;

dt << New Column(colName, Character, Nominal, Set each value(fileName));

This thread had it: https://community.jmp.com/t5/Discussions/Set-Column-Values/td-p/13584