Merge branch '357-gwpy-breaking-legend-plots' into 'master'

Resolve "`gwpy` breaking legend plots"

Closes #357

See merge request !497

bilby/core/result.py

@@ -1447,7 +1447,8 @@ def plot_multiple(results, filename=None, labels=None, colours=None,
 
 
 def make_pp_plot(results, filename=None, save=True, confidence_interval=0.9,
-                 lines=None, legend_fontsize=9, keys=None, **kwargs):
+                 lines=None, legend_fontsize=9, keys=None, title=True,
+                 **kwargs):
     """
     Make a P-P plot for a set of runs with injected signals.
 
@@ -1515,7 +1516,16 @@ def make_pp_plot(results, filename=None, save=True, confidence_interval=0.9,
         pvalues.append(pvalue)
         logger.info("{}: {}".format(key, pvalue))
 
-    ax.legend(fontsize=legend_fontsize)
+    Pvals = namedtuple('pvals', ['combined_pvalue', 'pvalues', 'names'])
+    pvals = Pvals(combined_pvalue=scipy.stats.combine_pvalues(pvalues)[1],
+                  pvalues=pvalues,
+                  names=list(credible_levels.keys()))
+    logger.info(
+        "Combined p-value: {}".format(pvals.combined_pvalue))
+
+    if title:
+        ax.set_title("p-value = {:2.4f}".format(pvals.combined_pvalue))
+    ax.legend(linewidth=1, labelspacing=0.25)
     ax.set_xlim(0, 1)
     ax.set_ylim(0, 1)
     fig.tight_layout()
@@ -1524,12 +1534,6 @@ def make_pp_plot(results, filename=None, save=True, confidence_interval=0.9,
             filename = 'outdir/pp.png'
         fig.savefig(filename, dpi=500)
 
-    Pvals = namedtuple('pvals', ['combined_pvalue', 'pvalues', 'names'])
-    pvals = Pvals(combined_pvalue=scipy.stats.combine_pvalues(pvalues)[1],
-                  pvalues=pvalues,
-                  names=list(credible_levels.keys()))
-    logger.info(
-        "Combined p-value: {}".format(pvals.combined_pvalue))
     return fig, pvals