matlab hold

"hold" 是 MATLAB 中的一个命令，它可以控制 MATLAB 绘图时是否要保留当前图形以便在同一图形窗口中绘制其它图形。当使用 "hold on" 命令时，MATLAB 会保留当前图形并在同一图形窗口中绘制其它图形；当使用 "hold off" 命令时，MATLAB 会清除当前图形并在同一图形窗口中绘制新图形。如果不使用 "hold" 命令，则每次绘图都会清除当前图形并在新窗口中绘制新图形。

相关问题

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

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.