Added method LeftRightBottomTop to ROI

src/cristallina/plot.py

@@ -188,20 +188,23 @@ def plot_image_channel(data, channel_name, pulse=0, ax=None, rois=None, norms=No
     axis_styling(ax, channel_name, description)
     plt.legend(loc=4)    
 
-def plot_spectrum_channel(data, channel_name_x, channel_name_y, ax=None):
+def plot_spectrum_channel(data, channel_name_x, channel_name_y, average=True, frame=0, ax=None):
     """
     Plots channel data for two channels where the first is taken as the (constant) x-axis
-    and the second as the y-axis (here we take the mean over the individual pulses).
+    and the second as the y-axis (here we take by default the mean over the individual pulses).
     """
     try:
         mean, std = np.mean(data[channel_name_y].data), np.std(data[channel_name_y].data)
-        # data[channel_name].data
         mean_over_frames = np.mean(data[channel_name_y].data, axis=0)
     except TypeError:
         print(f"Unknown data in channel {channel_name_y}.")
         return
 
-    y_data = mean_over_frames
+    if average:
+        y_data = mean_over_frames
+    else:
+        y_data = data[channel_name_y].data[frame]
+        
 
     if ax is None:
         fig, ax = plt.subplots(constrained_layout=True)