Writing a matlab function- get number of rows

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I'm new to Matlab.
I'm writing a matlab function to which I have given the arguments: Params, X,Y
All 3 are vectors.
I want to find out how many rows vector X has.
What is the corresponding matlab command/inbuilt function?
I was thinking of using :
MStruct = get(DMObj)
PropertyValue = get(DMObj, 'NRows')
Any better suggestions please?

Answers (3)

Thomas
Thomas on 5 Mar 2012
Try size(x) to give you the size of the vectors
doc size

Sean de Wolski
Sean de Wolski on 5 Mar 2012
mrows = size(x,1)

Shalini
Shalini on 5 Mar 2012
Thanks a lot..Is it necessary to declare variable mrows in Matlab?
  2 Comments
Walter Roberson
Walter Roberson on 5 Mar 2012
Declaration of variables was addressed in your topic
http://www.mathworks.com/matlabcentral/answers/31248-variable-declaration-in-matlab

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