Incorrect effort base factor used in COCOMO calculations

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Describe the bug
I believe there is a mistake in the effort base factor value used in COCOMO calculations. I believe you use the default values from sloccount's "organic" mode, which sets this as 2.4, but scc's calculations use 3.2. Is this intentional or should it be 2.4?

It also looks like you used 1.8 as the "overhead" value when determining cost, as opposed to sloccount's default of 2.4.

See:
https://dwheeler.com/sloccount/sloccount.html#cocomo
https://github.com/boyter/scc/blob/master/processor/cocomo.go#L18

[boyter]

Hah seems like I did make a mistake there. From memory I compared against sloccount's cost value and not anything else, but with the new values put in...

Original

Estimated Cost to Develop $6,300,654
Estimated Schedule Effort 30.878580 months
Estimated People Required 24.170352

Revised

Estimated Cost to Develop $6,300,654
Estimated Schedule Effort 27.680925 months
Estimated People Required 20.221854

Anyway going to put in the correct values.

[boyter]

Done. You can see it here now https://github.com/boyter/scc/blob/master/processor/cocomo.go

Thanks for reporting.

I should make it so you can modify these values as you see fit though.