将单个 MATLAB 绘图组合成一个图形：修改脚本是最佳选择吗？

Question

下面的脚本生成七个单独的图形（每个图形包括两个图）。我想将它们组合成一个包含所有 14 个地块的大图。我认为可能有两种解决方案：修改当前脚本或在绘制后将它们添加到一个中。我是个初学者；任何简单的解决方案将不胜感激。 （我的数据：https://www.dropbox.com/s/ggdh03lo10w85vv/Block-1.mat?dl=0）。

%% loop through frequencies, plot both channels next to each other
% desired # of points
nPoints = 200;

%vary this value to determine how closely you want the plots to be stacked on one another
stackvar = 0.00003;

% loop through frequencies
for f = 1:nf

   % get channel 1 and 2 data for all attenuations (levels)
   % and desired frequency converted

   % from cell to matrix. time in rows, levels in columns
   datatoplot_ch1 = cell2mat(Ch1D.mean(:, f)');
   datatoplot_ch2 = cell2mat(Ch2D.mean(:, f)');

   % plot in new figure for each frequency
   figure

   % loop through levels for this frequency
   for ii = 1:nl

      % plot fresh trace in first plot

      if ii == 1
         % ch 1
         subplot(1, 2, 1)
         plot(datatoplot_ch1(1:nPoints, ii) + stackvar*(nl - (ii - 1)), 'b');

         % ch 2
         subplot(1, 2, 2)
         plot(datatoplot_ch2(1:nPoints, ii) + stackvar*(nl - (ii - 1)), 'r');
      else

         % channel 1
         subplot(1, 2, 1)
         hold on
         plot(datatoplot_ch1(1:nPoints, ii) + stackvar*(nl - (ii - 1)), 'b');
         hold off

         % channel 2
         subplot(1, 2, 2)
         hold on
         plot(datatoplot_ch2(1:nPoints, ii) + stackvar*(nl - (ii - 1)), 'r');
         hold off
      end

      % add level label to identify trace
      subplot(1, 2, 1)
      text(1, stackvar*(nl - (ii - 1)), sprintf('%d', attens(ii)));
      subplot(1, 2, 2)
      text(1, stackvar*(nl - (ii - 1)), sprintf('%d', attens(ii)));
   end

   subplot(1, 2, 1)
   title(sprintf('%s Ch1 %d', BLOCK, freqs(f)));
   subplot(1, 2, 2)
   title(sprintf('%s Ch2 %d', BLOCK, freqs(f)));

end

Answer 1

在你已经绘制它们之后，你不能轻易地将它们“合并”成一个图形。你可以做的是放置命令

hold on

就在函数figure和

之后

hold off

在最后一个 title 之后。这将确保所有绘图都绘制在当前活动图形上。

有关函数 hold 的更多详细信息，请参阅 MATLAB 文档： https://www.mathworks.com/help/matlab/ref/hold.html