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comparison scripts/signal/freqz.m @ 20266:83792dd9bcc1

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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.
author Rik <rik@octave.org>
date Tue, 26 May 2015 21:07:42 -0700
parents f1d0f506ee78
children
comparison
equal deleted inserted replaced
20265:e914b5399c67 20266:83792dd9bcc1
150 ## polyval is much higher and the little bit of time saved isn't 150 ## polyval is much higher and the little bit of time saved isn't
151 ## worth the extra code. 151 ## worth the extra code.
152 k = max (length (b), length (a)); 152 k = max (length (b), length (a));
153 if (k > n/2 && nargout == 0) 153 if (k > n/2 && nargout == 0)
154 ## Ensure a causal phase response. 154 ## Ensure a causal phase response.
155 n = n * 2 .^ ceil (log2 (2*k/n)); 155 n *= 2 .^ ceil (log2 (2*k/n));
156 endif 156 endif
157 157
158 if (whole_region) 158 if (whole_region)
159 N = n; 159 N = n;
160 if (plot_output) 160 if (plot_output)
176 176
177 hb = zeros (n, 1); 177 hb = zeros (n, 1);
178 ha = zeros (n, 1); 178 ha = zeros (n, 1);
179 179
180 for i = 1:N:pad_sz 180 for i = 1:N:pad_sz
181 hb = hb + fft (postpad (b(i:i+N-1), N))(1:n); 181 hb += fft (postpad (b(i:i+N-1), N))(1:n);
182 ha = ha + fft (postpad (a(i:i+N-1), N))(1:n); 182 ha += fft (postpad (a(i:i+N-1), N))(1:n);
183 endfor 183 endfor
184 184
185 endif 185 endif
186 186
187 h = hb ./ ha; 187 h = hb ./ ha;