It should work.
Here's an example of how that option should be used:
SAS® Visual Data Mining and Machine Learning Procedures
The TEXTMINE Procedure
Example 10.7 Adding a Multiterm List
https://go.documentation.sas.com/doc/en/vdmmlcdc/8.1/casml/viyaml_textmine_examples07.htm
Koen
Thanks for the reply!
I am using SAS Viya 3.5. I do not get any error or messages. My results are unchanged when I use multiterm.
For example, I put the term "dont know" in a CAS table "mycas._multiterm" as follows. Note that this is a common bi-gram in my data found by using pointwise mutual information.
Here is my code for topic discovery:
proc textmine data= mycas.data_file;
	doc_id id;
	var text;
	parse
		termwgt= 	none
		cellwgt= 	none
		reducef= 	30
		entities= 	std
		multiterm= 	mycas._multiterm
		outparent= 	mycas.outparent
		outterms= 	mycas.outterms
		outpos=		mycas.outpos
		outchild=	mycas.outchild;
	svd	
		k=			100
		outdocpro=	mycas.outdocpro keepvariables= (id)
		outtopics=	mycas.outtopics
		svdu=  		mycas.outsvdu;
run;
My primary indication that it is not working is that the term 'dont know' is not in mycas.outterms table. My secondary indication is that I can't get my topic assignments to change when I specify multi term phrases.
proc sql;
	select * from mycas.outterms where term = 'dont know';
quit;
The formatting you suggested might be the solution. I put a space after the term, then no other spaces.
I now see the term 'dont know' in my outterms CAS table!
I will examine the results a bit more but this is progress!
It's finally time to hack! Remember to visit the SAS Hacker's Hub regularly for news and updates.
Use this tutorial as a handy guide to weigh the pros and cons of these commonly used machine learning algorithms.
Find more tutorials on the SAS Users YouTube channel.