Simplify `CustomDateFormatter`

plot_statistics.py

@@ -44,35 +44,18 @@ axesColors = ['blue', 'green', 'brown', 'orange', 'brown', 'red', 'purple']
 axesLabels = ['targets', 'compressed blockchain size (in blocks)', 'compressed blockchain score', 'constant difficulty compressed blockchain size (in blocks)', 'constant difficulty compressed blockchain score', 'compressed blockchain size keeping all blocks since last m higher block (in blocks)', 'compressed blockchain score keeping all blocks since last m higher block']
 axesYValues = [targets, data['compressSize'], data['compressScore'], dataConstantDifficulty['compressSize'], dataConstantDifficulty['compressScore'], dataKeepingAllBlocksSinceLastMHigherBlock['compressSize'], dataKeepingAllBlocksSinceLastMHigherBlock['compressScore']]
 
-class CustomDateFormatter(ticker.Formatter):
-    """
-    Format a tick (in days since the epoch) with a
-    `~datetime.datetime.strftime` format string.
-    """
-
-    def __init__(self, fmt, tz=None):
-        """
-        Parameters
-        ----------
-        fmt : str
-            `~datetime.datetime.strftime` format string
-        tz : str or `~datetime.tzinfo`, default: :rc:`timezone`
-            Ticks timezone. If a string, *tz* is passed to `dateutil.tz`.
-        """
-        self.tz = _get_tzinfo(tz)
-        self.fmt = fmt
-
+class CustomDateFormatter(mdates.ticker.Formatter):
     def __call__(self, x, pos=0):
-        result = num2date(x, self.tz).strftime(self.fmt)
+        result = mdates.num2date(x).strftime('%m/%Y')
         return result
 
-plt.gca().xaxis.set_major_formatter(CustomDateFormatter('%m/%Y'))
+plt.gca().xaxis.set_major_formatter(CustomDateFormatter())
 
 curves = []
 for curvesIndex, (axis, color, label, yValues) in enumerate(zip(axes, axesColors, axesLabels, axesYValues)):
     dashes = (None, None) if curvesIndex != 4 else [1, 25]
     alpha = 1 if curvesIndex != 3 else 0.5
-    # TODO: remove below
+    # TODO: remove below, could maybe precise file names in scripts not to mess up
     # Due to not having exported `timestamps` for every execution:
     comparableLength = min(len(timestamps), len(yValues))
     curves += axis.plot(timestamps[:comparableLength], yValues[:comparableLength], label = label, color = color, dashes = dashes, alpha = alpha)