--- a/scripts/plot/pareto.m
+++ b/scripts/plot/pareto.m
@@ -64,14 +64,14 @@
     y = varargin {2}(:).';
     if (! iscell (y))
       if (ischar (y))
-	y = cellstr (y);
+        y = cellstr (y);
       else
-	y = cellfun (@(x) num2str (x), num2cell (y), "UniformOutput", false);
+        y = cellfun (@(x) num2str (x), num2cell (y), "UniformOutput", false);
       endif
     endif
   else
     y = cellfun (@(x) int2str (x), num2cell (1 : numel(x)), 
-		 "UniformOutput", false);
+                 "UniformOutput", false);
   endif
 
   [x, idx] = sort (x, "descend");
@@ -83,8 +83,8 @@
   idx95 = find(sign(cdf95(1:end-1)) != sign(cdf95(2:end)))(1);
 
   [ax, hbar, hline] = plotyy (1 : idx95, x (1 : idx95), 
-			      1 : length(cdf), 100 .* cdf, 
-			      @bar, @plot);
+                              1 : length(cdf), 100 .* cdf, 
+                              @bar, @plot);
 
   axis (ax(1), [1 - 0.6, idx95 + 0.6, 0, maxcdf]);
   axis (ax(2), [1 - 0.6, idx95 + 0.6, 0, 100]);