Someone recently asked me about using letters instead of built-in symbols in JMP scatter plots. In case others are wondering the same thing, here's the long answer.
In addition to the 32 built-in symbols you can use any character as a marker for a scatter plot.The easiest way to set a letter as the symbol for a row is with the "Other..." item in the Marker submenu. Here's an example with Big Class. After selecting all males, right click in the row-state area to get:
![8133_marker1.png 8133_marker1.png](https://community.jmp.com/t5/image/serverpage/image-id/1292iDBB68F5AA37E26E1/image-size/medium?v=v2&px=400)
That brings up a dialog where you can type a letter.
![8134_marker2.png 8134_marker2.png](https://community.jmp.com/t5/image/serverpage/image-id/1293iA00A5C7AEF62779A/image-size/medium?v=v2&px=400)
Setting the male rows to "M" and the female rows to "F" yields:
![8135_marker3.png 8135_marker3.png](https://community.jmp.com/t5/image/serverpage/image-id/1294i16F2257377348DC5/image-size/medium?v=v2&px=400)
And the scatter plot looks like:
![8136_marker4.png 8136_marker4.png](https://community.jmp.com/t5/image/serverpage/image-id/1295i2D4596A837BCC48B/image-size/medium?v=v2&px=400)
Any character in the current Marker Font (set in Preferences) is allowed, so there is a wide variety of Unicode characters available, and you can change the font preference to a symbol font for even more specialty options. Special characters can be tricky to type from the keyboard, but you can usually find them in a Unicode table and paste them into the dialog.
You can also set them through scripting. Here's a scripting example that uses the Mars/Venus male/female symbols, showing two different techniques for specifying the character.
dt = Open( "$SAMPLE_DATA/Big Class.jmp" );
r = dt << Select Where( :sex == "M" );
r << Markers( "\!U2642" ); // hexadecimal
r = dt << Select Where( :sex == "F" );
r << Markers( "♀" ); // actual character
Data table:
![8137_marker5.png 8137_marker5.png](https://community.jmp.com/t5/image/serverpage/image-id/1296i872D331D7B404D61/image-size/medium?v=v2&px=400)
Scatter plot:
![8138_marker6.png 8138_marker6.png](https://community.jmp.com/t5/image/serverpage/image-id/1297i5A149A9B8CC85C5D/image-size/medium?v=v2&px=400)
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