VUMULLINS Element deletion

[pgrossm000]

Hello-

I am trying to run an analysis of a piece of tissue using the VUMULLINS subroutine (

http://130.149.89.49:2080/v6.14/books/sub/default.htm?startat=ch01s02asb21.html#sub-xsl-vumullins).

I have been able to get the subroutine to work, but am having trouble with the element deletion/failure. Any advice on what I might be doing wrong?

Thank you