problem using stem command

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Muhammad Haziq
Muhammad Haziq 2018-12-6
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
Star Strider 2018-12-6
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)
The ylim call makes the slight variation in the ‘lev_press’ values more visible.
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Muhammad Haziq
Muhammad Haziq 2018-12-6
Hi,
Thanks for the reply and helping me, this resolve my problem.
Regards,
Haziq
Star Strider
Star Strider 2018-12-6
As always, my pleasure.

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