diff --git a/PlottingTool.mlapp b/PlottingTool.mlapp
index 4f9eecc..ee1ea30 100644
Binary files a/PlottingTool.mlapp and b/PlottingTool.mlapp differ
diff --git a/diffPlotFnc.m b/diffPlotFnc.m
index c0ac404..7661601 100644
--- a/diffPlotFnc.m
+++ b/diffPlotFnc.m
@@ -1,4 +1,4 @@
-function diffPlotFnc(data, fileSettings, checkboxes, start, stop, yAxis, xAxis, channels, path, order)
+function diffPlotFnc(data, fileSettings, checkboxes, start, stop, yAxis, xAxis, channels, path)
     
     %Iterate through all channels
     for channel = 1:width(data)
@@ -43,6 +43,10 @@ function diffPlotFnc(data, fileSettings, checkboxes, start, stop, yAxis, xAxis,
             figure(channel)
             plot(timeArray, yData, '-b');
             hold all
+            
+            %shorten time array to match lost value from diff
+            timeArray(end) = [];
+
             plot(timeArray, diff(yData), '-r');
             ylabel(yAxis{channel}.Value);
             xlabel(xAxis{channel}.Value);
@@ -50,7 +54,7 @@ function diffPlotFnc(data, fileSettings, checkboxes, start, stop, yAxis, xAxis,
             title(channels{channel});
             
             %Save plot
-            saveFigs('median', figure(channel), channels(channel), path, fileSettings{1}.Value)
+            saveFigs('derivative', figure(channel), channels(channel), path, fileSettings{1}.Value)
             
             %reset
             hold off
diff --git a/fourierPlotFnc.m b/fourierPlotFnc.m
index d66bc70..795b630 100644
--- a/fourierPlotFnc.m
+++ b/fourierPlotFnc.m
@@ -47,7 +47,7 @@ function fourierPlotFnc(data, fileSettings, checkboxes, start, stop, yAxis, xAxi
                 Nspec = 1024;
             end
             wspec = hamming(Nspec);
-            Noverlap = Nspec/2;
+            Noverlap = int16(Nspec/2);
 
             hold on
             figure(channel)