interval | R Documentation |
Function to compute confidence intervals for the break dates based on the "shrinking shifts" asymptotic framework
interval(y, z, zbar, b, q, m, robust, prewhit, hetomega, hetq, x, p)
y |
dependent variable |
z |
matrix of independent variables with coefficients allowed to change across regimes |
zbar |
partitioned matrix of independent variables with coefficients allowed to change across regimes according to break date |
b |
vector of estimated dates of breaks |
q |
number of regressors |
m |
maximum number of breaks |
robust, withb, hetdat, hetvar |
options for assumptions of error terms structure |
prewhit |
Option of using prewhitening process. If |
x |
matrix of independent variables with coefficients constant across regimes |
p |
number x regressors |
bigT |
sample period T |
bound Confidence intervals of break date in 90%
and 95%
significant level
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