# Computing partial derivatives of the CCC matrix

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### Description

This function computes partial derivatives of the CCC matrix with respect to its correlation coefficients.

### Usage

 1  vdR(n) 

### Arguments

 n the number of dimension of the model

### Value

a matrix of zeros and ones ( (N(N-1))/2 \times N^{2} )

### References

Nakatani, T. and T. Ter\"asvirta (2009), “Testing for Volatility Interactions in the Constant Conditional Correlation GARCH Model”, Econometrics Journal, 12, 147-163.

Nakatani, T. and T. Ter\"asvirta (2008), “Appendix to Testing for Volatility Interactions in the Constant Conditional Correlation GARCH Model” Department of Economic Statistics, Stockholm School of Economics, available at http://swopec.hhs.se/hastef/abs/hastef0649.htm.

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