add "use TeX" to multibar

src/main.py

@@ -126,6 +126,7 @@ if __name__ == "__main__":
     )
     multi_bar_parser.add_argument("data", type=str, nargs="?", help=f"the actual data to show in a multibar plot\n\n{multi_bar.HELP}")
     multi_bar_parser.add_argument("--label", "-l", type=str, help="the measurement label of the multibar plot")
+    multi_bar_parser.add_argument("--use-tex", action="store_true")
 
     common_options = [
         {
@@ -203,6 +204,7 @@ if __name__ == "__main__":
             args.title,
             args.label,
             plot_layout=plot_layout,
+            use_tex=args.use_tex,
         )
 
     if fig is None:

src/multi_bar.py

@@ -6,9 +6,10 @@ import numpy as np
 import json
 import sys
 import argparse
+import shutil
 
 from error import GPLTError
-from log import panic
+from log import panic, warning
 
 
 HELP="""# Example
@@ -69,10 +70,20 @@ def multi_bar(
     nb_legend_cols: int = 3,
     legend_loc: str = "upper left",
     plot_layout: str = "constrained",
+    use_tex: bool = False,
 ) -> matplotlib.figure.Figure:
     if labels_locations is None:
         labels_locations = np.arange(len(groups))
 
+    if use_tex:
+        if shutil.which("latex") is None:
+            warning("LaTeX is not installed, using default rendering")
+        else:
+            plt.rcParams.update({
+                "text.usetex": True,
+                'text.latex.preamble': r'\usepackage{amsfonts}'
+            })
+
     fig, ax = plt.subplots(layout=plot_layout)
 
     for i, (attribute, measurement) in enumerate(measurements.items()):