Pingouin

This release fixes a critical error in [pingouin.partial_corr](https://pingouin-stats.org/generated/pingouin.partial_corr.html#pingouin.partial_corr): the number of covariates was not taken into account when calculating the degrees of freedom of the partial correlation, thus leading to incorrect results (except for the correlation coefficient which remained unaffected). For more details, please see https://github.com/raphaelvallat/pingouin/issues/171.

For the full changelog, please see https://pingouin-stats.org/changelog.html

This is a minor release with several bug fixes in [pingouin.corr](https://pingouin-stats.org/generated/pingouin.corr.html#pingouin.corr). The full changelog can be found [here](https://pingouin-stats.org/changelog.html).

This release fixes an error in the calculation of the p-values in the [pg.pairwise_tukey()](https://pingouin-stats.org/generated/pingouin.pairwise_tukey.html#pingouin.pairwise_tukey) and [pg.pairwise_gameshowell()](https://pingouin-stats.org/generated/pingouin.pairwise_gameshowell.html#pingouin.pairwise_gameshowell) functions (https://github.com/raphaelvallat/pingouin/pull/156). Old versions of Pingouin used an incorrect algorithm for the studentized range approximation, which resulted in (slightly) incorrect p-values. In most cases, the error did not seem to affect the significance of the p-values. The new version of Pingouin uses statsmodels to estimate the p-values.

See changelog at: https://pingouin-stats.org/changelog.html

- Important bugfix in pingouin.ttest() in which the 95% confidence intervals for one-sample T-test with `y` != 0 were invalid.
- Added an "options" module to control global rounding/display behavior.
- Several enhancements / new features in existing functions.

See full changelog at: https://pingouin-stats.org/changelog.html

Hotfix release. See full changelog at: https://pingouin-stats.org/changelog.html