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How to set format for a column group (i.e. not individually)?

Neo

I have a column group for which I want to change the format. I know how to do this for a given column as below

Names Default To Here (1);
dt = Open ("myTable.jmp"); 
//Show( dt:myCol << get format );
dt:myCol<< Format( "Fixed Dec", 10, 2 );
//Show( dt:myCol<< get format );

How to do this for column group in JSL?

(I guess I need a JSL variant of this https://community.jmp.com/t5/Discussions/how-to-multiple-column-format-at-once/td-p/238726 )

Accepted answers

Neo

The following does the job for me. Thanks.

Names Default To Here( 1 ); <BR />dt = Open ("myDataTable.jmp"); /*load data table*/<BR />ListofNumericCols = dt << get column names(numeric, Continuous); //get list of columns to group
NumericCols = dt << Group Columns ("NumericCols",ListofNumericCols);  // group columns
dt<< Select Columns (dt<<Get Column Group(NumericCols)); // select grouped columns
selecedColNames = dt << Get Selected Columns; // get column names in a list
\\ set desired format for the column group<BR />Local( {old dt = Current Data Table()},
	Current Data Table( Data Table( "myDataTable" ) );
	For Each( {col, index},
		selecedColNames,
		col << Format( "Fixed Dec", 12, 2 )
	);
	Current Data Table( old dt );
);

All comments

Victor_G

Hello @Neo,

When selecting multiple columns, you can right-click on them and select "Standardize Attributes" (Standardize Attributes and Properties Across Columns (jmp.com)) :

Looking at the script log, you can then extract the code for this attributes standardization. Example here is :

// Standardize column attributes
Local( {old dt = Current Data Table()},
	Current Data Table( Data Table( "Test" ) );
	For Each( {col, index}, {:Column 1, :Column 2, :Column 3},
		col << Data Type( Numeric, Format( "Fixed Dec", 12, 2 ) ) << Set Modeling Type( "Continuous" )
	);
	Current Data Table( old dt );
);

Hope this answer will help you,

Neo

@Victor_G

Thanks. I am trying to avoid

{:Column 1, :Column 2, :Column 3}

as these are expected to change on a case by case basis. I can select the relevant (numeric) columns as

ListofNumericCols = dt << get column names(numeric, Continuous);
NumericCols = dt << Group Columns ("NumericCols",ListofNumericCols); 
dt<< Select Columns (dt<<Get Column Group(NumericCols));

and then I want to change the format of the group "NumericCols" at once. How to/Can we do this in JSL?

Neo

The following does the job for me. Thanks.

Names Default To Here( 1 ); <BR />dt = Open ("myDataTable.jmp"); /*load data table*/<BR />ListofNumericCols = dt << get column names(numeric, Continuous); //get list of columns to group
NumericCols = dt << Group Columns ("NumericCols",ListofNumericCols);  // group columns
dt<< Select Columns (dt<<Get Column Group(NumericCols)); // select grouped columns
selecedColNames = dt << Get Selected Columns; // get column names in a list
\\ set desired format for the column group<BR />Local( {old dt = Current Data Table()},
	Current Data Table( Data Table( "myDataTable" ) );
	For Each( {col, index},
		selecedColNames,
		col << Format( "Fixed Dec", 12, 2 )
	);
	Current Data Table( old dt );
);

Mark_Bailey

You do not need to first select columns in a group and then get their references.

Names Default To Here( 1 );

// example
dt = Open( "$SAMPLE_DATA/Cities.jmp" );

// create column groups
dt << group columns( "xy", {:X, :y} );
dt << group columns( "pollutants", :Ozone :: :Lead );

// get col references to each member in group
col = dt << get column group( "xy" );

// iterate over list and make change to attribute or proptery
For( c = 1, c <= N Items( col ), c++,
	col[c] << Format( "Fixed Dec", 6, 2 );
);