Since I just upgraded to Unicorn I wanted to see what Rackommend would have to say about my current 'target' rack ().

Well it says I am very low on oscillators whilst I have 5 oscillator modules (Pico Voice & VCO, Morphor VCO, Behringer Waves and Halos) over a total of 44 modules. For me that's a bit more than 11%, Rackopmmend calculates 5%... this calculation is mystery to me ,-)

It looks arbitrary mixed to me.
to much B.-clones for my taste.
I see no consistency.
Maybe it helps, if you work out what you want to do with this rack first - and then align stuff till you see this concept in your rack.
But maybe you know what you are doing - and I just dont get it.

That is interesting, I am curious how that works too. At first I was going to guess that maybe some of your oscillators were not tagged as such--I have seen many modules in the database which are not tagged with all of their functions. But all of those in your rack are marked as "oscillator", so that can't be it.

I wonder if it does the calculation not by the number of modules, but the number of functions instead?

As a really simplistic example: Suppose we have a rack with only two modules in it: a Behringer Brains and a Wasp filter. If we're counting by the number of modules we have one oscillator out of two total, so 50% oscillator. However, if we are counting by function instead we have one oscillator out of a total of 5 functions: Drum, Noise, Oscillator, and Synth Voice from Brains + Filter from the Wasp. That calculation gives 20% oscillator.

I think Replicant2501 is probably right, a rack with twose two modules ranks 33% for each of oscillator, noise, and filter. But 0% drum (which is NOT in the function list) whilst Brains is also tagged drum, but that is consistent.