Why will this script not plot data in the figure? Is there a setting I'm missing? Every time I run the script, all I get is a completely blank (white) graph in the figure.

1 次查看（过去 30 天）

NC_Mark 2017-10-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/363284-why-will-this-script-not-plot-data-in-the-figure-is-there-a-setting-i-m-missing-every-time-i-run-t

评论： Rena Berman 2017-10-31

clear
clf
x=rand;
y=rand;
plot(x,y)
hold on
for it=1:10000
choic=round(rand*2);
if choic ==0
x=x/2;
y=y/2;
elseif choic == 1
x = (x+1)/2;
y=y/2;
else
x=(x+0.5)/2;
y=(y+1)/2;
end
plot(x,y)
hold on
end

5 个评论
显示 3更早的评论隐藏 3更早的评论

Greg 2017-10-26

Thank you.

Rena Berman 2017-10-31

(Answers Dev) Restored edit

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Greg 2017-10-25

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/363284-why-will-this-script-not-plot-data-in-the-figure-is-there-a-setting-i-m-missing-every-time-i-run-t#answer_287768

编辑：Greg 2017-10-25

在 MATLAB Online 中打开

The default behavior of plot does not include a marker. This means all you can see is the interpolated line connecting each PAIR of points. When you plot scalar x and y, there's no second point to draw a line to.

Try:

plot(x,y,'.');

To use a dot marker. Search documentation for other marker options if you don't like the dot.