Actual i disgree on that, i like the first graph more . Note a option in LogFormattter when to use scientific notation would be wonderful, (e.g. min_exponent=2 for the behavior proposed.).

My first reaction was "no", but then I looked at it again and I like it. I can't find any examples of other people doing this, though.

I agree with @Tillsten's suggestion that this needs to be implemented as an option, not as the sole formatting method.

I'd be fine with having it as an option, but what about exposing that option at the level of set_xscale/set_yscale too? (so that users to have to go an import the logformatter class etc.?)

That probably makes sense to allow formatter options to pass through, but
we should then also post through locator options.

It might be simpler to just document how to mutate the locator/formatter
after the fact.

It feels like we have a lot of inconsistent apis due to requests like this
which make perfect sense in isolation, but lead to very complicated, hard
to use code when they all get stacked.

On Sun, Jul 19, 2015, 3:08 AM Thomas Robitaille notifications@github.com
wrote:

I'd be fine with having it as an option, but what about exposing that
option at the level of set_xscale/set_yscale too? (so that users to have
to go an import the logformatter class etc.?)

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#4730 (comment)
.

👍 for having this as an option. Whichever API makes it into the examples gallery is the only one I'm every likely to use, unless it shows up on a stackoverflow question.

Another issue related to this one I usually encounter is with axis that have limits of the order of a decade or two. For these, only a couple of labels will be shown. A combination of

ax.xaxis.set_minor_locator(ticker.LogLocator(subs=[1,2,5])
ax.xaxis.set_major_formatter(ticker.NullFormatter())
ax.xaxis.set_minor_formatter(ticker.LogFormatter(labelOnlyBase=False))

will add labels on 1, 2, 5 multiples of the base. However, this does not work with ticker.LogFormatterMathtext, which will show 10^{4.30} instead of 2\times10^{4}, and you lose all the other minor ticks.

Now that I reread it, this might need to go in a separate issue. Do you think it's worth to do it for the default change?

Please make a separate issue.

On Wed, Jul 29, 2015, 7:49 AM Victor Zabalza notifications@github.com
wrote:

Another issue related to this one I usually encounter is with axis that
have limits of the order of a decade or two. For these, only a couple of
labels will be shown. A combination of

ax.xaxis.set_minor_locator(ticker.LogLocator(subs=[1,2,5])
ax.xaxis.set_major_formatter(ticker.NullFormatter())
ax.xaxis.set_minor_formatter(ticker.LogFormatter(labelOnlyBase=False))

will add labels on 1, 2, 5 multiples of the base. However, this does not
work with ticker.LogFormatterMathtext, which will show 10^{4.30} instead
of 2\times10^{4}, and you lose all the other minor ticks.

Now that I reread it, this might need to go in a separate issue. Do you
think it's worth to do it for the default change?

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#4730 (comment)
.

Regarding how to make this an option, I think it would be worth including it in rcParams: it is something a user will likely always want on or off because of personal preference, but rarely on a per-plot basis.

We plan to make this the new default for 2.0 (which means it will grow an rcParam so that classic mode will work). But we'll need to fix the baseline issue first.

@mdboom Please don't, I still don't see why -1, 0, 1 should be special powers in a log plot: In symlog-plots the different notations are often use to mark the linear and the log-part separately. I also never heard anybody complain about 10^0 or 10^1.

@astrofrog, @tacaswell and I have decided that this would be a nice option, but given the differences of opinion about making it a default, we will not do so in 2.0. Would you augment this PR, please, to provide rcParams control?

@astrofrog: Do you have time to finish this with rcParams control? I am finishing up #5161, and this PR would be a nice companion. I can take over if you don't have the time.

@zblz - it would be great if you could take over and just cherry-pick my commits - thanks!

Closing as work is continued in #6834