Plot on top of semilogy plot

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Brian
Brian 2014-7-18
回答： Star Strider 2014-7-18
Hello, thanks for reading this,
I want to make a plot on top of a semilogy plot. What I mean by this is the following:
I have a test row array:
B = [236715 13924 3292 2158 1450 971 977 1180 1117 360]
and I create a semilogy plot with the command:
semilogy(B, '*-')
Now, just for some look-pretty visualization, I want to add something on top of this: lines coming from each of the points down to the x axis. Using the major gridlines isn't what I mean, I mean plotting on top of this lines from each of the 10 points back down to the x axis (coloring will change depending on parameters).
I use the code listed here:
for i=1:10
hold on
line([i i],[B(i) 0], 'r')
end
to make the lines, but it doesn't show up. I can make hold on plots just using individual points, but any kind of traced line I try to create doesn't work. I tried using this code with the plot of B, instead of the semilogy plot, and it works, but the data doesn't look as good. Is there a way to trace on top of this?
Thanks!

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采纳的回答

Star Strider
Star Strider 2014-7-18
Try the stem plot function:
B = [236715 13924 3292 2158 1450 971 977 1180 1117 360];
L = length(B);
figure(1)
semilogy(B, '*-')
hold on
stem(1:L, B, 'r')
hold off

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