Writing a Matlab function for the first time
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This is th first time I'm writing a Matlab function.I have written several FORTRAN programs earlier but not Matlab.
Now, my program essentially does (or I want it to do) the follwoing:
1) The function takes 3 arguments which are vectors. The 3 vectors are Params,X,Y
2) The program (or function) first gets the size of vectors X and Y respectively and assigns to variables xrows and yrows respectively
3) Now: actually the vectors X and Y are concatenated vectors. That is there may be 2 or more vectors (X1,X2,Y1,Y2,..) which are concatenated into X and Y the arguments
4) The program wants to split the vectors X and Y into X1,X2,Y1,Y2,X3,....
5) For the time beinmg ,I have defined the total number of concatenated vectors as total_sets inside the function.
6)I have written a code to get hthese concatenated vectors X1,X2,Y1,Y2 as below.Can anyone help me to do the encessary corrections to the code? I shall be grateful.
function [ error ] = ConcatenatingAllDataSets( Params,X,Y)
%UNTITLED Summary of this function goes here
% Detailed explanation goes here
%Below we get the number of rows for the vector X
xrows = size(X,1)
%Below we get the number of rows for the vector Y
yrows=size(Y,1)
%Below we define the total number of sets that are to be concatenated
%So, if total sets =1, it means that we will have one set of epsilon's
%If total sets is equal to 2, we will have 2 sets of epsilons
%Similarly, if total sets is equal to
total_sets=2
start_value=0
k=total_sets
for j=1,total_sets
for i=start_value+1,1,(xrows/k)
epsilon(j,i)=X(i);
sigma(j,i)=Y(i)
end
k=k-1
end
%Above we have separated concatenated values - X and Y separated into
%epsilon and sigma
end
采纳的回答
Andrew Newell
2012-3-6
I think what you are trying to do is convert a row vector into a matrix with total_sets number of rows. You can do this with two commands:
function [epsilon,sigma] = concatenatingAllDataSets(total_sets,X,Y)
epsilon = reshape(X,total_sets,[]);
sigma = reshape(Y,total_sets,[]);
(edited to add function statement)
6 个评论
Shalini
2012-3-6
Andrew Newell
2012-3-6
I added a function statement to my answer. Is that what you mean?
Shalini
2012-3-6
Shalini
2012-3-6
Andrew Newell
2012-3-6
Assuming you already have your vectors X and Y, you should run
total_sets = 2;
[epsilon,sigma] = concatenatingAllDataSets(total_sets,X,Y)
Shalini
2012-3-6
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