Initializing trough constructor a 2-Dimensional pointer - pointers

Question

I have created a class and tried to initialize a 2D pointer in my class constructor. Then I use a getter in my main.cpp but it doesn't worked. Building is successful but I end up with a value 0xcccccccc? when I debug it.
Here is my code.
Header
Asset {
public:
Asset(int numberAssets, int numberReturns); // Constructor
//getter and setter
double **getAssetReturnMatrix();
~Asset();
private:
int _numberAssets, _numberReturns;
double **_assetReturn;
};
Cpp file
#include "Asset.h"
Asset::Asset(int numberAssets, int numberReturns)
{
// store data
_numberAssets = numberAssets; // 83 rows
_numberReturns = numberReturns; // 700 cols
//allocate memory for return matrix
double **_assetReturn = new double*[_numberAssets]; // a matrix to store the return data
for (int i = 0; i<_numberAssets; i++)
_assetReturn[i] = new double[_numberReturns];
}
Asset::~Asset()
{
}
Main.cpp
#include <iostream>
#include "read_data.h"
#include "Asset.h"
using namespace std;
int main(int argc, char *argv[])
{
//Create our class object
int numberAssets = 83;
int numberReturns = 700;
Asset returnMatrix = Asset(numberAssets, numberReturns);
//read the data from the file and store it into the return matrix
string fileName = "asset_returns.csv";
double ** data = returnMatrix.getAssetReturnMatrix();
cout << data; // <--- Value 0xcccccccc? here
//readData(data, fileName);
return 0;
}
Could you please tell me where I am wrong?
Thanks a lot !

Answer 1

I was created a new variable which had nothing to do with my private member double **_assetReturn defined in my h file, here:
//allocate memory for return matrix
double **_assetReturn = new double*[_numberAssets]; // a matrix to store the return data
for (int i = 0; i<_numberAssets; i++)
_assetReturn[i] = new double[_numberReturns];
Changed it to:
//allocate memory for return matrix
this->_assetReturn = new double*[this->_numberAssets]; // a matrix to store the return data
for (int i = 0; i<this->_numberAssets; i++)
this->_assetReturn[i] = new double[this->_numberReturns];
Worked fine now.