matlab hold on

The "hold on" command in MATLAB is used to retain the current plot and add subsequent plots to it.

For example, if you plot a graph using the "plot" command, and then use the "hold on" command before plotting the second graph, the second graph will be plotted on the same figure as the first graph.

Here is an example code snippet:

x = 0:0.1:2*pi;
y1 = sin(x);
y2 = cos(x);

plot(x, y1)
hold on
plot(x, y2)

In this example, the "hold on" command is used to keep the first plot (sin(x)) on the figure, and add the second plot (cos(x)) to it. If "hold on" was not used, the second plot would overwrite the first one.

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MATLAB hold on

The "hold on" command in MATLAB is used to retain the current plot and add new plots to the same figure.

For example, if you have plotted a graph using the "plot" command and you want to add another plot to the same graph, you can use the "hold on" command before plotting the new data.

Here is an example:

x = 0:0.1:2*pi;
y1 = sin(x);
y2 = cos(x);

plot(x, y1);
hold on;
plot(x, y2);

In this example, the first plot command will plot the sine function and the "hold on" command will retain the current plot. The second plot command will plot the cosine function on the same graph as the sine function.

Without the "hold on" command, the second plot command would create a new figure and plot the cosine function on a separate graph.

Note that you can turn off the "hold on" behavior using the "hold off" command.

matlab hold on是什么意思

在MATLAB中，`hold on`是一个命令，它告诉MATLAB保持图形窗口中的当前图形，并在其中添加任何后续的图形。也就是说，它允许您在同一张图中绘制多个曲线或图形，而不是每次绘制一个曲线或图形都要打开一个新的图形窗口。

例如，如果您想在同一张图中绘制两个曲线，可以使用以下代码：

x = 0:0.1:2*pi;
y1 = sin(x);
y2 = cos(x);
plot(x,y1)
hold on
plot(x,y2)

在这个例子中，第一个`plot`命令绘制sin函数的图形，然后`hold on`命令告诉MATLAB保持当前图形，然后第二个`plot`命令绘制cos函数的图形，但是它不会清除之前的图形，而是将新的图形添加到同一张图中。