swt documentation mistake

[Smogy001]

Documentation for pywt.swt states:
"If start_level = m is given, then the beginning m steps are skipped:
[(cAm+n, cDm+n), ..., (cAm+1, cDm+1), (cAm, cDm)]"

It is misleading, because level = n is implied to be positive integer and not non-negative integer, i.e. starts from 1 and not 0.

I provide a counterexample level=1, start_level = 1.
According to documentation, coeffs = [(cA1+1, cD1+1), (cA1, cD1)], len(coeffs) = 2.
In reality, coeffs = [(cA1, cD1)], len(coeffs) = 1.

I suggest removing (cAm, cDm) from documentation or better yet, changing indexes to start from 0 for clarity.
Right now default start_level = 0 corresponds to [(cAn, cDn), ..., (cA2, cD2), (cA**1**, cD**1**)] which is also convoluted and misleading.

[rgommers]

Thanks for the report @Smogy001, you are correct that that doesn't look accurate.

This line is wrong:

[(cAm+n, cDm+n), ..., (cAm+1, cDm+1), (cAm, cDm)]

From a quick look, I think it should read:

[(cAn, cDm), ..., (cAm+2, cDm+2), (cAm+1, cDm+1)]

or better yet, changing indexes to start from 0 for clarity.

I think the subscript 1 is used consistently throughout the docs, so this doesn't sound good to me.