lib/statsample/anova/contrast.rb in statsample-1.3.1 vs lib/statsample/anova/contrast.rb in statsample-1.4.0

@@ -10,10 +10,10 @@
         @vectors=opts[:vectors]
         @c=opts[:c]
         @c1,@c2=opts[:c1], opts[:c2]
         @t_options=opts[:t_options] || {:estimate_name=>_("Psi estimate")}
         @name=opts[:name] || _("Contrast")
-        psi
+        @psi=nil
         @anova=Statsample::Anova::OneWayWithVectors.new(@vectors)
         @msw=@anova.msw
       end
       # Hypothesis contrast, selecting index for each constrast
       # For example, if you want to contrast x_0 against x_1 and x_2