wfdb.plot.plot: rename get_plot_dims to _get_plot_dims.

This function is not in the wfdb module, is not listed in the
documentation, and shouldn't be used by applications directly.

Author: Benjamin Moody

tests/test_plot.py

@@ -13,7 +13,7 @@ def test_get_plot_dims(self):
         ann = wfdb.rdann(
             "sample-data/100", "atr", sampfrom=sampfrom, sampto=sampto
         )
-        sig_len, n_sig, n_annot, n_subplots = plot.get_plot_dims(
+        sig_len, n_sig, n_annot, n_subplots = plot._get_plot_dims(
             signal=record.p_signal, ann_samp=[ann.sample]
         )
 

wfdb/plot/plot.py

@@ -249,7 +249,7 @@ def plot_items(
     signal = _expand_channels(signal)
 
     # Figure out number of subplots required
-    sig_len, n_sig, n_annot, n_subplots = get_plot_dims(signal, ann_samp)
+    sig_len, n_sig, n_annot, n_subplots = _get_plot_dims(signal, ann_samp)
 
     # Convert sampling_freq and ann_freq to lists if needed
     sampling_freq = _get_sampling_freq(sampling_freq, n_sig, fs)
@@ -334,7 +334,7 @@ def plot_items(
     plt.show()
 
 
-def get_plot_dims(signal, ann_samp):
+def _get_plot_dims(signal, ann_samp):
     """
     Figure out the number of plot channels.