running error with New Keynesian Model
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I am estiamting a pretty standard new Keynesian monetary model with US data, every time when I specify three observables:y pai i, there is a error message:
??? Error using ==> chol
Matrix must be positive definite.
Error in ==> metropolis_hastings_initialization at 52
d = chol(vv);
everything works fine with two observables: y pai.
this is data for output, pai and i.
output is detrended log, multiplied by 400.
pai is the log difference of CPI, multiplied,
i is the fed fund rate
??? Error using ==> chol
Matrix must be positive definite.
Error in ==> metropolis_hastings_initialization at 52
d = chol(vv);
everything works fine with two observables: y pai.
this is data for output, pai and i.
output is detrended log, multiplied by 400.
pai is the log difference of CPI, multiplied,
i is the fed fund rate