Handled bokeh log axes with axis lower bound <=0

[philippjfr]

Addresses #1679. If the range lower bound is <= 0, it uses a lower bound of 0.01 unless the upper bound is <0.01, in which case it backs up to a value one decimal point lower than the upper value.

[jlstevens]

Should it warn? Isn't 0.01 an arbitrary value?

[jlstevens]

Nevermind, I see you have a warning in there.

[jlstevens]

@philippjfr Ready to merge?

[philippjfr]

Yes.

[TheoMathurin]

Addresses #1679. If the range lower bound is <= 0, it uses a lower bound of 0.01 unless the upper bound is <0.01, in which case it backs up to a value one decimal point lower than the upper value.

Looking at the current file, if I'm not mistaken it seems like the lower bound is set to 0.01 if (and not unless) the upper bound is <0.01: low = 0.01 if high < 0.01 else 10**(np.log10(high)-2)

[jlstevens]

Well spotted!

That is how I am reading this code as well...

[TheoMathurin]

Should I file an issue on this matter?

If it's just about changing the "lesser than" sign, I can make the corresponding PR as well.

[github-actions]

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