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  • Image to Table JMP extension imports single or batch images as data tables. Useful to extract curves from pictures or convert image data to curve data to use in analyses like Functional Data Explorer. Download and install the extension.

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ALopez
Level III

Rename columns using an associative array

Hi, I am trying to use an associative array to rename a bunch of columns. I have been using the Big Class data as an example. I will appreciate some help fixing my script.

Names Default To Here( 1 );
dt = Data Table ("Big Class.jmp");
//Use and array to rename the Big Class table columns to "spanish"
newColNames = Associative Array();
newColNames["name"] = "nombre";
newColNames["age"] = "edad";
newColNames["sex"] = "sexo";
newColNames["height"] = "altura";
newColNames["weight"] = "peso";

uno = newColNames << Get Keys(); //for testing

newN = newColNames << Get Values({"name"}); //for testing

oriNames = dt << Get Column Names(); // in case there are variation on the number/name of columns

For( i=1, 1 <= N Items(oriNames), i++,
key = oriNames[i];

	Column(dt, key ) << set name (newColNames<<Get Values ({key}));
	
); 
1 ACCEPTED SOLUTION

Accepted Solutions
ian_jmp
Level X

Re: Rename columns using an associative array

You were very close:

Names Default To Here( 1 );

dt = Open("$SAMPLE_DATA/Big Class.jmp");

//Use and array to rename the Big Class table columns to "spanish"
newColNames = Associative Array();
newColNames["name"] = "nombre";
newColNames["age"] = "edad";
newColNames["sex"] = "sexo";
newColNames["height"] = "altura";
newColNames["weight"] = "peso";

oriNames = dt << Get Column Names("String"); 	// in case there are variation on the number/name of columns

For( i=1, i <= N Items(oriNames), i++,
	key = oriNames[i];
	Column(dt, key ) << set name ( newColNames << Get Value (key) );
); 

View solution in original post

3 REPLIES 3
ian_jmp
Level X

Re: Rename columns using an associative array

You were very close:

Names Default To Here( 1 );

dt = Open("$SAMPLE_DATA/Big Class.jmp");

//Use and array to rename the Big Class table columns to "spanish"
newColNames = Associative Array();
newColNames["name"] = "nombre";
newColNames["age"] = "edad";
newColNames["sex"] = "sexo";
newColNames["height"] = "altura";
newColNames["weight"] = "peso";

oriNames = dt << Get Column Names("String"); 	// in case there are variation on the number/name of columns

For( i=1, i <= N Items(oriNames), i++,
	key = oriNames[i];
	Column(dt, key ) << set name ( newColNames << Get Value (key) );
); 
Craige_Hales
Super User

Re: Rename columns using an associative array

@ian_jmp Took me way too long to see the "1"!

dt = Open( "$sample_data/Big Class.jmp" );
//Use and array to rename the Big Class table columns to "spanish"
newColNames = Associative Array();
newColNames["name"] = "nombre";
newColNames["age"] = "edad";
newColNames["sex"] = "sexo";
newColNames["height"] = "altura";
newColNames["weight"] = "peso";

uno = newColNames << Get Keys(); //for testing

newN = newColNames << Get Values( {"age"} ); //for testing

oriNames = dt << Get Column Names( "string" ); // in case there are variation on the number/name of columns

For( i = 1, i <= N Items( oriNames ), i++,
	key = oriNames[i];
	Column( dt, key ) << set name( newColNames[key] );
);
Craige
ALopez
Level III

Re: Rename columns using an associative array

@ian_jmp 

Thank you very much for you help. Important lessons: check you i's and "Get Values" and "Get Value".

Best regards,

AL 

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