statsmodels.tsa.vector_ar.var_model.VARResults.irf¶
method
- 
VARResults.irf(periods=10, var_decomp=None, var_order=None)[source]¶ Analyze impulse responses to shocks in system
- Parameters
 - periodsint
 - var_decompndarray (k x k), lower triangular
 Must satisfy Omega = P P’, where P is the passed matrix. Defaults to Cholesky decomposition of Omega
- var_ordersequence
 Alternate variable order for Cholesky decomposition
- Returns
 - irfIRAnalysis
 
