problem using stem command

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Muhammad Haziq 2018-12-6

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/434227-problem-using-stem-command

评论： Star Strider 2018-12-6

Hi,

I want to plot some point by using stem comand but I recieve error. can any body guide me. point are lev_press and I need to mark them in between rec_start and rec_stop.

error:

Subscript indices must either be real positive integers or logicals.

Error in example (line 87)

stem(x,lev_press(1,r),':diamondr')

data

rec_start = 1.625608000000000e+03;

rec_stop=1.655613000000000e+03;

x = rec_start:1:rec_stop;

lev_press=[1629.599, 1630.297, 1633.178];

for r = lev_press 1:1:3

figure

stem(x,lev_press(1,r),':diamondr')

end

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采纳的回答

Star Strider 2018-12-6

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/434227-problem-using-stem-command#answer_350878

在 MATLAB Online 中打开

Try this:

rec_start = 1.625608000000000e+03;
rec_stop=1.655613000000000e+03;
lev_press=[1629.599, 1630.297, 1633.178];
x = linspace(rec_start, rec_stop, numel(lev_press));
figure
stem(x, lev_press)
grid
ylim([1600 1650])                                       % Optional (‘Zooms’ Plot)