how to manage matrix construction?

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janny 2014-11-20

评论： Guillaume 2014-11-25

hi guys

i need a code to construct this matrix, the code should allow the user to insert h1,h2...h(n-1)

Guillaume 2014-11-23

How about:

m = circshift(eye(numel(h) + 1), 1, 2)
m(end, 2:end) = h;

janny 2014-11-25

this one gave an error

??? Error using ==> circshift Too many input arguments.

Guillaume 2014-11-25

You must be using an older version of matlab then.

m = circshift(eye(numel(h) + 1), [0 1])

should work regardless of version

Star Strider 2014-11-20

Janny, meet compan. It generates the companion-form matrix you want.

janny 2014-11-25

the last line came in decimal.... it should be in binary,, it came as:

0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 1 8 10 7 1

how to make it in binary

Star Strider 2014-11-25

I have no idea what you’re doing. To make it binary with the randi function, change that line to:

len = 4;                    % Length of number string
h = randi([0 1],1,len);

To produce a binary string from a decimal number, use the dec2bin function.

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