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" );
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
Without the slash that follows $SAMPLE_DATA, the path is interpreted as:
C:/Program Files/SAS/JMP/14/Samples/DataBig Class.jmp