Use in-place operators in m-files where possible. * scripts/audio/@audioplayer/set.m, scripts/audio/@audiorecorder/set.m, scripts/audio/mu2lin.m, scripts/elfun/cosd.m, scripts/general/del2.m, scripts/general/profexplore.m, scripts/general/quadl.m, scripts/general/rat.m, scripts/general/rotdim.m, scripts/help/get_first_help_sentence.m, scripts/help/private/__strip_html_tags__.m, scripts/image/cubehelix.m, scripts/io/textread.m, scripts/linear-algebra/duplication_matrix.m, scripts/linear-algebra/housh.m, scripts/linear-algebra/krylov.m, scripts/linear-algebra/logm.m, scripts/linear-algebra/normest.m, scripts/linear-algebra/onenormest.m, scripts/optimization/fminsearch.m, scripts/optimization/lsqnonneg.m, scripts/optimization/qp.m, scripts/plot/appearance/annotation.m, scripts/plot/appearance/axis.m, scripts/plot/appearance/legend.m, scripts/plot/appearance/specular.m, scripts/plot/draw/colorbar.m, scripts/plot/draw/hist.m, scripts/plot/draw/plotmatrix.m, scripts/plot/draw/private/__stem__.m, scripts/plot/util/__actual_axis_position__.m, scripts/plot/util/__gnuplot_drawnow__.m, scripts/plot/util/findobj.m, scripts/plot/util/print.m, scripts/plot/util/private/__go_draw_axes__.m, scripts/plot/util/private/__print_parse_opts__.m, scripts/plot/util/rotate.m, scripts/polynomial/pchip.m, scripts/polynomial/polyaffine.m, scripts/polynomial/polyder.m, scripts/polynomial/private/__splinefit__.m, scripts/polynomial/residue.m, scripts/signal/arch_fit.m, scripts/signal/arch_rnd.m, scripts/signal/bartlett.m, scripts/signal/blackman.m, scripts/signal/freqz.m, scripts/signal/hamming.m, scripts/signal/hanning.m, scripts/signal/spectral_adf.m, scripts/signal/spectral_xdf.m, scripts/signal/stft.m, scripts/sparse/bicgstab.m, scripts/sparse/cgs.m, scripts/sparse/private/__sprand_impl__.m, scripts/sparse/qmr.m, scripts/sparse/sprandsym.m, scripts/sparse/svds.m, scripts/specfun/legendre.m, scripts/special-matrix/gallery.m, scripts/statistics/base/gls.m, scripts/statistics/models/logistic_regression.m, scripts/statistics/tests/kruskal_wallis_test.m, scripts/statistics/tests/manova.m, scripts/statistics/tests/wilcoxon_test.m, scripts/time/datevec.m: Use in-place operators in m-files where possible.

--- a/scripts/special-matrix/gallery.m	Mon May 25 22:02:15 2015 -0700
+++ b/scripts/special-matrix/gallery.m	Tue May 26 21:07:42 2015 -0700
@@ -595,7 +595,7 @@
       error ("gallery: unknown K '%d' for chebspec matrix.", k);
   endswitch
 
-  n = n-1;
+  n -= 1;
   C = zeros (n+1);
 
   one    = ones (n+1, 1);
@@ -773,7 +773,7 @@
     error ("gallery: K must be a numeric scalar for clement matrix.");
   endif
 
-  n = n-1;
+  n -= 1;
   x = n:-1:1;
   z = 1:n;
 
@@ -1493,13 +1493,13 @@
 
     if (k == 0)
       for i = 1:n-1
-        d = d * prod (1:i+1) * prod (1:n-i);
+        d *= prod (1:i+1) * prod (1:n-i);
       endfor
-      d = d * prod (1:n+1);
+      d *= prod (1:n+1);
 
     elseif (k == 1)
       for i = 0:n-1
-        d = d * prod (1:i) / prod (1:n+1+i);
+        d *= prod (1:i) / prod (1:n+1+i);
       endfor
       if (rem (n*(n-1)/2, 2))
         d = -d;
@@ -2218,7 +2218,7 @@
   ## If A will be a vector
   if (p == 1)
     A = randn (m, n);
-    A = A / norm (A);
+    A /= norm (A);
     return;
   endif
 
@@ -2339,7 +2339,7 @@
     error ("gallery: N must be an integer for riemann matrix.");
   endif
 
-  n = n+1;
+  n += 1;
   i = (2:n)' * ones (1, n-1);
   j = i';
   A = i .* (! rem (j, i)) - ones (n-1);
@@ -2435,7 +2435,7 @@
   E = 2*pi * ((1:n)' * ones (1, n) - ones (n, 1) * (1:n));
 
   for i = 1:m
-    T = T + w(i) * cos (theta(i)*E);
+    T += w(i) * cos (theta(i)*E);
   endfor
 endfunction