someone who can tell me my mistake why it doesn't graph me?????? QUESTION 14.

Question

Miguel Amor Rodriguez Avelino 2022-4-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1708505-someone-who-can-tell-me-my-mistake-why-it-doesn-t-graph-me-question-14

评论： Voss 2022-5-31

在 MATLAB Online 中打开

P0214: Use function 'conv(h,x)' to compute noncausal

% h convolves causal x
close all; clc
nh = -4:4;
nx = 0:5;
h = ones(1,9);
x = 1:6;
y1 = conv(h,x); % compute convolution
s= (nh(1)+nx(1)):(nh(end)+nx(end)); % define support
m = conv0(h,nh,x,nx); % verification
%plot
plot(x,y1)

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Voss 2022-4-29

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1708505-someone-who-can-tell-me-my-mistake-why-it-doesn-t-graph-me-question-14#answer_954165

在 MATLAB Online 中打开

Maybe the plot command is never reached because of an error on the previous line:

try
% h convolves causal x
close all; clc
nh = -4:4;
nx = 0:5;
h = ones(1,9);
x = 1:6;
y1 = conv(h,x); % compute convolution
s= (nh(1)+nx(1)):(nh(end)+nx(end)); % define support
m = conv0(h,nh,x,nx); % verification
%plot
plot(x,y1)
catch ME
disp(ME.message);
end % see error message below:
Undefined function 'conv0' for input arguments of type 'double'.

Or maybe you do have a function called conv0 that runs ok, but then calling plot gives an error because x and y1 are of different lengths:

try
% h convolves causal x
close all; clc
nh = -4:4;
nx = 0:5;
h = ones(1,9);
x = 1:6;
y1 = conv(h,x); % compute convolution
s= (nh(1)+nx(1)):(nh(end)+nx(end)); % define support
% m = conv0(h,nh,x,nx); % verification
%plot
plot(x,y1)
catch ME
disp(ME.message);
end % see error message below:
Vectors must be the same length.