[python] remove "auto" value of `ylabel` argument of `plot_metric()` function (#4818)

953915f5 · Nikita Titov · GitHub · 701e8740 · 953915f5
Unverified Commit 953915f5 authored Nov 27, 2021 by Nikita Titov Committed by GitHub Nov 27, 2021
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python-package/lightgbm/plotting.py python-package/lightgbm/plotting.py +0 -5

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--- a/python-package/lightgbm/plotting.py
+++ b/python-package/lightgbm/plotting.py
@@ -403,11 +403,6 @@ def plot_metric(
        ylim = (min_result - range_result * 0.2, max_result + range_result * 0.2)
    ax.set_ylim(ylim)

-    if ylabel == 'auto':
-        _log_warning("'auto' value of 'ylabel' argument is deprecated and will be removed in a future release of LightGBM. "
-                     "Use '@metric@' placeholder instead.")
-        ylabel = '@metric@'
-
    if title is not None:
        ax.set_title(title)
    if xlabel is not None: