如何从Matlab中的图形导出数据? [英] How to export data from the graph in Matlab?

问题描述

我在matlab中有一个图形，我想从图形中导出数据.是否可以从图中导出数据?

I have a graph in matlab and I want to export the data from the graph. Is it possible to export data from the figure ?

我努力出口.实际上，我过去曾导出过数据，但我忘记了.

I tried hard to export. Actually, I had exported data in the past but I forgot.

我们非常感谢您的帮助.

Any help is highly appreciated.

谢谢.

推荐答案

您可以通过以下方式从图形中导出x和y向量(假设该图形是单个数据集的2D图):

You can export x and y vectors from a figure (assuming the figure is a 2D plot for a single data set) by:

h = plot(1:10);
xVec = get(h,'XData');
yVec = get(h,'YData');

如果没有手柄但图形已打开，则可以使用gcf，gca作为当前活动图形或轴的手柄.

If you dont have the handle but the figure is open, then you can use gcf, gca as the handle for the current active figure or axis.

如果图中有多个数据集(线)，则可以通过以下方式获取所有关联数据:

If you have multiple data sets (lines) in the figure you can get all of the associated data by:

lines = findobj(h, 'Type', 'line'); //h is the handle to the figure
nlines = length(lines);
points = cell(nlines,2);
for i = 1:nlines
    points{i,1} = get(lines(i),'XData');
    points{i,2} = get(lines(i),'YData');
end

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