I would like to use the multi-reference classification program (e2spt_refinemulti_new) to get three classes from my subtomogram average. I am currently using the aliptcls3d_xx.lst file as particles without providing a reference map:
e2spt_refinemulti_new.py --ptcls=spt_11/aliptcls3d_02.lst --niter=5 --maxres=20 --nref=3 --loadali3d –parallel=thread:12:/home/mgrollins/tmp
However, after five iterations, all of my classes look very similar and have a similar number of particles. In order to better separate out the different classes, would the best approach be to increase the number of iterations? Or would it be to include a reference (i.e., the subtomogram average from that run) and mask out the region of the reference where I am expecting the most heterogeneity?
Also, is there any advantage to using the multi-reference classification program over the orthogonal projections/k-means classification (e2spt_classify_byproj) program?
Thank you,
Madeline
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