statsmodels.tsa.statespace.varmax.VARMAXResults

class statsmodels.tsa.statespace.varmax.VARMAXResults(model, params, filter_results, cov_type='opg', **kwargs) [source]

Class to hold results from fitting an VARMAX model.

Parameters:	model (VARMAX instance) – The fitted model instance

specification

dictionary – Dictionary including all attributes from the VARMAX model instance.

coefficient_matrices_var

array – Array containing autoregressive lag polynomial coefficient matrices, ordered from lowest degree to highest.

coefficient_matrices_vma

array – Array containing moving average lag polynomial coefficients, ordered from lowest degree to highest.

See also

statsmodels.tsa.statespace.kalman_filter.FilterResults, statsmodels.tsa.statespace.mlemodel.MLEResults

Methods

aic()	(float) Akaike Information Criterion
bic()	(float) Bayes Information Criterion
bse()
conf_int([alpha, cols, method])	Returns the confidence interval of the fitted parameters.
cov_params([r_matrix, column, scale, cov_p, …])	Returns the variance/covariance matrix.
cov_params_approx()	(array) The variance / covariance matrix.
cov_params_oim()	(array) The variance / covariance matrix.
cov_params_opg()	(array) The variance / covariance matrix.
cov_params_robust()	(array) The QMLE variance / covariance matrix.
cov_params_robust_approx()	(array) The QMLE variance / covariance matrix.
cov_params_robust_oim()	(array) The QMLE variance / covariance matrix.
f_test(r_matrix[, cov_p, scale, invcov])	Compute the F-test for a joint linear hypothesis.
fittedvalues()	(array) The predicted values of the model.
forecast([steps])	Out-of-sample forecasts
get_forecast([steps])	Out-of-sample forecasts
get_prediction([start, end, dynamic, index, …])	In-sample prediction and out-of-sample forecasting
hqic()	(float) Hannan-Quinn Information Criterion
impulse_responses([steps, impulse, …])	Impulse response function
info_criteria(criteria[, method])	Information criteria
initialize(model, params, **kwd)
llf()	(float) The value of the log-likelihood function evaluated at params.
llf_obs()	(float) The value of the log-likelihood function evaluated at params.
load(fname)	load a pickle, (class method)
loglikelihood_burn()	(float) The number of observations during which the likelihood is not evaluated.
normalized_cov_params()
plot_diagnostics([variable, lags, fig, figsize])	Diagnostic plots for standardized residuals of one endogenous variable
predict([start, end, dynamic])	In-sample prediction and out-of-sample forecasting
pvalues()	(array) The p-values associated with the z-statistics of the coefficients.
remove_data()	remove data arrays, all nobs arrays from result and model
resid()	(array) The model residuals.
save(fname[, remove_data])	save a pickle of this instance
simulate(nsimulations[, measurement_shocks, …])	Simulate a new time series following the state space model
summary([alpha, start, separate_params])	Summarize the Model
t_test(r_matrix[, cov_p, scale, use_t])	Compute a t-test for a each linear hypothesis of the form Rb = q
t_test_pairwise(term_name[, method, alpha, …])	perform pairwise t_test with multiple testing corrected p-values
test_heteroskedasticity(method[, …])	Test for heteroskedasticity of standardized residuals
test_normality(method)	Test for normality of standardized residuals.
test_serial_correlation(method[, lags])	Ljung-box test for no serial correlation of standardized residuals
tvalues()	Return the t-statistic for a given parameter estimate.
wald_test(r_matrix[, cov_p, scale, invcov, …])	Compute a Wald-test for a joint linear hypothesis.
wald_test_terms([skip_single, …])	Compute a sequence of Wald tests for terms over multiple columns
zvalues()	(array) The z-statistics for the coefficients.

Attributes

use_t