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Assign values to selected rows

yves38

Occasional Contributor

Joined:

Dec 12, 2016

Hi,

I want to assign a value in a column for a set of rows selected.

I select the rows like this:

 

dt=current data tables();
dt << selectwhere(dt:columnA == "1" );

 

And I would like to assign the value "TEST" to the columnC for all the selected rows (only for the selected rows).

How can I do it very simply (i.e. without for loop)?

Thanks in advance.

1 ACCEPTED SOLUTION

Accepted Solutions
ian_jmp

Staff

Joined:

Jun 23, 2011

Solution

It might be better to use '<<getRowsWhere()':

 

NamesDefaultToHere(1);
dt = Open("$SAMPLE_DATA/Big Class.jmp");
Wait(3);
r = dt << getRowsWhere(:height < 55);
Column(dt, "weight")[r] = .;

 

And for JMP 13, see also:

 

https://community.jmp.com/t5/Uncharted/Data-table-subscripting/ba-p/21013

 

2 REPLIES
ian_jmp

Staff

Joined:

Jun 23, 2011

Solution

It might be better to use '<<getRowsWhere()':

 

NamesDefaultToHere(1);
dt = Open("$SAMPLE_DATA/Big Class.jmp");
Wait(3);
r = dt << getRowsWhere(:height < 55);
Column(dt, "weight")[r] = .;

 

And for JMP 13, see also:

 

https://community.jmp.com/t5/Uncharted/Data-table-subscripting/ba-p/21013

 

yves38

Occasional Contributor

Joined:

Dec 12, 2016

Excellent !

Thank  you.