How to interchange columns using JSL?

[#1]

Hi all,

I have a CSV file that is being used in JMP. However, I need to interchange columns 1 & 2 with Columns 7 & 8. How to do it using JSL. It looks something like this: 

Original File

1

2

3

4

5

6

7

8

9

Interchanged columns

7

8

3

4

5

6

1

2

9

[#2]

Do you wish to reorder your columns or just move the data around inside the columns? This should help you with re-ordering of the columns BUT it won't work the same with all JMP versions due to how <<move selected columns did work in some version(s)

Names Default To Here(1);

dt = New Table("Untitled 2",
	Add Rows(0),
	Compress File When Saved(1),
	New Column("1", Numeric, "Continuous", Format("Best", 12), Set Values([])),
	New Column("2", Numeric, "Continuous", Format("Best", 12), Set Values([])),
	New Column("3", Numeric, "Continuous", Format("Best", 12), Set Values([])),
	New Column("4", Numeric, "Continuous", Format("Best", 12), Set Values([])),
	New Column("5", Numeric, "Continuous", Format("Best", 12), Set Values([])),
	New Column("6", Numeric, "Continuous", Format("Best", 12), Set Values([])),
	New Column("7", Numeric, "Continuous", Format("Best", 12), Set Values([])),
	New Column("8", Numeric, "Continuous", Format("Best", 12), Set Values([])),
	New Column("9", Numeric, "Continuous", Format("Best", 12), Set Values([]))
);


wait(1); // demo purposes

collist = dt << Get Column Names("String");
col_order = {"7", "8", "3", "4", "5", "6", "1", "2", "9"};
dt << Move Selected Columns(col_order);

[#3]

 This works well. But just one question, is it also possible to move only the data inside the columns and not its headers? How is it done using JSL?

[#4]

You can either just change the Header names rather than moving the data, or you can actually move the data.  See example below

names default to here(1);
dt =
// Open Data Table: Big Class.jmp
// → Data Table( "Big Class" )
Open( "$SAMPLE_DATA/Big Class.jmp" );

// Move header is easier than moving all of the data
:weight << set name("new name");
:height << set name("weight");

// One way to move data
theHeights = :weight << get values;
theWeights = :new name << get values;
:new name << set name("height");

:weight << set values(theWeights);
:height << set values(theHeights);