[plotter] add possibility to change scale in plot kwargs

plotter.py

@@ -958,6 +958,8 @@ class Plotter(Aggregator, BaseProcessor):
         yunit=None,
         xunit_coeff=1.0,
         yunit_coeff=1.0,
+        xscale="linear",
+        yscale="linear",
         fit=None,
         fitlabel=None,
         smooth=0,
@@ -988,7 +990,7 @@ class Plotter(Aggregator, BaseProcessor):
         node_x = self.save.get_node(name_x)
         node_y = self.save.get_node(name_y)
 
-        # If the actual data is in a,other file, fetch it
+        # If the actual data is in another file, fetch it
         if subname_x:
             hdf5_x = tables.open_file(node_x.read())
             node_x = hdf5_x.get_node(subname_x)
@@ -1052,7 +1054,8 @@ class Plotter(Aggregator, BaseProcessor):
                 yerr_max[mask],
             )
         else:
-            x, y = node_x[run], node_y[run]
+            x = node_x[run].read() * xunit_old.express(xunit)
+            y = node_y[run].read() * yunit_old.express(yunit)
             mask = np.isfinite(x) & np.isfinite(y)
             x, y = x[mask], y[mask]
 
@@ -1099,6 +1102,10 @@ class Plotter(Aggregator, BaseProcessor):
         if legend:
             plt.legend()
 
+        # Ax scale
+        plt.xscale(xscale)
+        plt.yscale(yscale)
+
         if fit is not None:
             self._overlay_fit(
                 x,