Merge pull request #1000 from PCMDI/parallel_plot_patch

Patch for Parallel plot

pcmdi_metrics/graphics/parallel_coordinate_plot/parallel_coordinate_plot_lib.py

@@ -33,6 +33,8 @@ def parallel_coordinate_plot(
  colormap="viridis",
  num_color=20,
  legend_off=False,
+ legend_ncol=6,
+ legend_bbox_to_anchor=(0.5, -0.14),
  logo_rect=None,
  logo_off=False,
  model_names2=None,
@@ -77,6 +79,8 @@ def parallel_coordinate_plot(
  - `colormap`: string, default='viridis', matplotlib colormap
  - `num_color`: integer, default=20, how many color to use.
  - `legend_off`: bool, default=False, turn off legend
+ - `legend_ncol`: integer, default=6, number of columns for legend text
+ - `legend_bbox_to_anchor`: tuple, defulat=(0.5, -0.14), set legend box location
  - `logo_rect`: sequence of float. The dimensions [left, bottom, width, height] of the new Axes.
  All quantities are in fractions of figure width and height. Optional.
  - `logo_off`: bool, default=False, turn off PMP logo
@@ -336,7 +340,10 @@ def parallel_coordinate_plot(
  ax.set_title(title, fontsize=18)
 
  if not legend_off:
- ax.legend(loc="upper center", ncol=6, bbox_to_anchor=(0.5, -0.14))
+ # ax.legend(loc="upper center", ncol=6, bbox_to_anchor=(0.5, -0.14))
+ ax.legend(
+ loc="upper center", ncol=legend_ncol, bbox_to_anchor=legend_bbox_to_anchor
+ )
 
  if not logo_off:
  fig, ax = add_logo(fig, ax, logo_rect)