diff --git a/villas/dataprocessing/plottools.py b/villas/dataprocessing/plottools.py
index 06d46feb02c7f1bd6636164807587c4397d8dcae..b8b7d3790cc621d5fb9e1b55e4a7e355612ba7bc 100644
--- a/villas/dataprocessing/plottools.py
+++ b/villas/dataprocessing/plottools.py
@@ -4,7 +4,7 @@ from .timeseries import *
 import scipy.signal as signal
 
 
-def plot_timeseries(figure_id, timeseries, marker='None', plt_linestyle='-', plt_linewidth=2, plt_color=None, plt_legend_loc='lower right', plt_legend=True, inlineLabel = False):
+def plot_timeseries(figure_id, timeseries, marker='None', plt_linestyle='-', plt_linewidth=2, plt_color=None, plt_legend_loc='lower right', plt_legend=True, inlineLabel = False, inlinLabelPos=[-1,-1]):
     """
     This function plots either a single timeseries or several timeseries in the figure defined by figure_id.
     Several timeseries (handed over in a list) are plotted in several subplots.
@@ -30,7 +30,7 @@ def plot_timeseries(figure_id, timeseries, marker='None', plt_linestyle='-', plt
             if(plt_legend):
                 plt.legend()
     if(inlineLabel):
-        plt.text(timeseries.time[-1], timeseries.values[-1], timeseries.label)
+        plt.text(timeseries.time[inlinLabelPos[0]], timeseries.values[inlinLabelPos[1]], timeseries.label)
 
 
 def set_timeseries_labels(timeseries, timeseries_labels):
diff --git a/villas/dataprocessing/timeseries.py b/villas/dataprocessing/timeseries.py
index c47fd713c70f174d7e59b8c8a4e1276f1e7d8290..c1180fabb55400c32c188d5f1a58bb46575f95a5 100644
--- a/villas/dataprocessing/timeseries.py
+++ b/villas/dataprocessing/timeseries.py
@@ -223,7 +223,9 @@ class TimeSeries:
     
     @staticmethod
     def rel_diff(name, ts1, ts2):
-        """Returns relative difference between two time series objects to the first.
+        """
+        Returns relative difference between two time series objects to the first.
+        calculated against the max of ts1.
         """
         diff_val=TimeSeries.diff('diff', ts1, ts2).values
         # relative error to the max value of ts1