Path variables are shortcuts to directories or files. Rather than enter the entire path to the directory or file, you use the path variable in a script. A path variable is a special type of string and is always contained within double quotation marks.

One common predefined path variable in JMP is $SAMPLE_DATA. This variable points to the sample data folder in your JMP or JMP Pro installation folder. The following example opens the Big Class.jmp sample data table.

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

To see the definition of any path variable, use the function Get Path Variable:

Get Path Variable( "HOME" );

"/C:/Users/<username>/AppData/Roaming/SAS/JMP/14/"

Note that you don’t include a dollar sign for Set Path Variable() or Get Path Variable(). But you must include the dollar sign when using the variable in a script.

Make sure to include a trailing slash after the path variable. In the following example, the root name "Big Class" is assigned to the dtName variable. The Open() expression evaluates $SAMPLE_DATA and the trailing slash and then appends the dtName value along with the file extension .jmp.

dtName = "Big Class";

dt = Open( "$SAMPLE_DATA/" || dtName || ".jmp" );

C:/Program Files/SAS/JMP/14/Samples/Data/Big Class.jmp

C:/Program Files/SAS/JMP/14/Samples/DataBig Class.jmp