Writing a matlab function- get number of rows

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?

Answer 1

[Thomas]

Try size(x) to give you the size of the vectors

doc size

Answer 2

[Sean de Wolski]

mrows = size(x,1)

Answer 3

[Shalini]

Thanks a lot..Is it necessary to declare variable mrows in Matlab?

[Oleg Komarov]

Have you tried the snippets?

[Walter Roberson]

Declaration of variables was addressed in your topic

http://www.mathworks.com/matlabcentral/answers/31248-variable-declaration-in-matlab