Adjusted the histogram scale of the x axis to automatically adjust for varying...

Adjusted the histogram scale of the x axis to automatically adjust for varying scales across dev & eval

Updated fixed index for histogram x-limit fix

bob/measure/script/figure.py

@@ -957,6 +957,18 @@ class Hist(GridSubplot):
         dev_neg, dev_pos, eval_neg, eval_pos, threshold = self._get_neg_pos_thres(
             idx, input_scores, input_names
         )
+
+        if dev_neg and dev_pos and eval_neg and eval_pos is not None:
+            xmin = min(numpy.min(dev_neg[0]), numpy.min(eval_neg[0]), numpy.min(dev_pos[0]), numpy.min(eval_pos[0]))
+            xmax = max(numpy.max(dev_neg[0]), numpy.max(eval_neg[0]), numpy.max(dev_pos[0]), numpy.max(eval_pos[0]))
+        elif dev_neg and dev_pos is not None:
+            xmin = min(numpy.min(dev_neg[0]), numpy.min(dev_pos[0]))
+            xmax = max(numpy.max(dev_neg[0]), numpy.max(dev_pos[0]))
+        elif eval_neg and eval_pos is not None:
+            # Providing EVAL set results only not currently supported by bob bio hist, but potentially in the future?
+            xmin = min(numpy.min(eval_neg[0]), numpy.min(eval_pos[0]))
+            xmax = max(numpy.max(eval_neg[0]), numpy.max(eval_pos[0]))
+
         # keep id of the current system
         sys = idx
         # if the id of the current system does not match the id of the plot,
@@ -968,16 +980,16 @@ class Hist(GridSubplot):
 
         if not self._hide_dev or not self._eval:
             self._print_subplot(
-                idx, sys, dev_neg, dev_pos, threshold, not self._no_line, False
+                idx, sys, dev_neg, dev_pos, threshold, not self._no_line, False, xlim=(xmin, xmax)
             )
 
         if self._eval:
             idx += self._ncols if not self._hide_dev else 0
             self._print_subplot(
-                idx, sys, eval_neg, eval_pos, threshold, not self._no_line, True
+                idx, sys, eval_neg, eval_pos, threshold, not self._no_line, True, xlim=(xmin, xmax)
             )
 
-    def _print_subplot(self, idx, sys, neg, pos, threshold, draw_line, evaluation):
+    def _print_subplot(self, idx, sys, neg, pos, threshold, draw_line, evaluation, xlim=None):
         """ print a subplot for the given score and subplot index"""
         n = idx % self._step_print
         col = n % self._ncols
@@ -995,6 +1007,8 @@ class Hist(GridSubplot):
         is_lower = evaluation or not self._eval
         if is_lower and sys_idx + self._ncols >= min(sys_per_page, rest_print):
             axis.set_xlabel(self._x_label)
+        if xlim is not None:
+            axis.set_xlim(xlim)
         dflt_title = "Eval. scores" if evaluation else "Dev. scores"
         if self.n_systems == 1 and (not self._eval or self._hide_dev):
             dflt_title = " "