How to use Chow test, in order to check structural breaks if I just have Indian GDP data series and nothing else?

I have to check the structural break in Indian GDP data, but I don't know how would I use Chow test, since in an online given example at Mathworks they are assuming a regression equation. But how to get that regression equation?

Answer 1

[magate]

Without knowing what your data is, you can use polyfit and polyval to get a regression equation.

See: Programmatic Fitting