converting vector<vector<double>> to mwArray

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Hello,
I am trying to pass a 2 dimensional vector (a matrix) in C++ to a C++ share library matlab function compiled by Matlab Compiler.
I am trying to convert this vector, for example myvect, to the mwArray type so that by matlab function can use it. The myvect has the following format in C++,
vector<vector<double>> myvect(2);
myvect[0].push_back(0.1);
myvect[0].push_back(0.2);
myvect[0].push_back(10);
myvect[0].push_back(20);
I am trying:
mwArray mymtrx(2, 2, mxDOUBLE_CLASS);
mymtrx.SetData(&mymtrx[0][0], 4);
But it does not work. The data in mymtrx is not the same as the data in myvect.
How can I convert myvectinto mwArray type?
Thank you

回答(1 个)

Kaustubha Govind
Kaustubha Govind 2011-2-22
Did you have a typo calling SetData?
mwArray mymtrx(2, 2, mxDOUBLE_CLASS);
mymtrx.SetData(&myvect[0][0], 4);
  4 个评论
hnde
hnde 2011-2-23
Thank you for your answer.
It is exactly as you said. It works for the vector<double> case, but not for the vector<vector<double>> case.
I am out of ideas on how to do this.
Thank you for all your help.
Jonathan Ingber Katz
As Kaustubha Govind said, this in the general case will not work for a vector of vectors. I believe the best way to do this is to recast your vector of vectors as a single vector.

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