Plotting two matrix error

2013 9 6
1 个回答
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Hello, I'm trying to get graph for two matrix versus each other each is 8000*1 matrix,and I tried plotmatrix too but I get this error : Error using plot Not enough input arguments.
close all
clear all
clc
%by
a=importdata('945bluesteel1018.txt');
b=a.textdata(66:8065,2)
c=a.textdata(66:8065,3)
plot(b,c)
Thanks for your help

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Salar
Salar 2013-9-6
they are each 8000 by 1 matrices
Walter Roberson
Walter Roberson 2013-9-6
Please use
which -all plot
to check to be sure you do not have some other plot function in your path.
Salar
Salar 2013-9-6
thanks for prompt response, we check we do not have any other plots, we both doing this and we both getting the same error
Salar
Salar 2013-9-6
it gave us : built-in (C:\Program Files\MATLAB\R2011b\toolbox\matlab\graph2d\plot)
Walter Roberson
Walter Roberson 2013-9-6
Could you put a breakpoint in at the plot statement and run and check the size and class of b and c ? Are they cell arrays perhsp?
the cyclist
the cyclist 2013-9-6
If you put in a breakpoint, be sure to remove your
clear all
command, which I believe will clear the breakpoint before you can stop at it.

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回答（1 个）

Image Analyst
Image Analyst 2013-9-6

0 个投票

This works for me:
a=sort(rand(8065, 3)); % Sample data.
b=a(66:8065,2);
c=a(66:8065,3);
whos ('a', 'b', 'c')
plot(b, c);
You must be doing something you aren't showing us, other than the exact error message (everything in red) which, for some reason, you chose not to share with us.

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Salar
Salar 2013-9-14
Hello, thanks for the prompt response, I can assure you that there is nothing else that I'm hiding or something, but there is something that we think it has to do with this error maybe you can help us. we call b=a(66:8065,2) and when I go to look at the matrix b , I see commas after each element. it looks like that it picks up these commas from the text file, can that cause this error? if yes, how do we get rid of these commas? Thanks
Salar
Salar 2013-9-14
Thanks for everyone's help, I already got the answer,

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Salar
Salar
2013-9-6

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