update.fixest {fixest} | R Documentation |
fixest
estimationUpdates and re-estimates a fixest
model (estimated with femlm
, feols
or feglm
). This function updates the formulas and use previous starting values to estimate a new fixest
model. The data is obtained from the original call
.
## S3 method for class 'fixest' update(object, fml.update, nframes = 1, ...)
object |
A |
fml.update |
Changes to be made to the original argument |
nframes |
(Advanced users.) Defaults to 1. Number of frames up the stack where to perform the evaluation of the updated call. By default, this is the parent frame. |
... |
Other arguments to be passed to the functions |
It returns a fixest
object (see details in femlm
, feols
or feglm
).
Laurent Berge
See also the main estimation functions femlm
, feols
or feglm
. predict.fixest
, summary.fixest
, vcov.fixest
, fixef.fixest
.
# Example using trade data data(trade) # main estimation est_pois <- femlm(Euros ~ log(dist_km) | Origin + Destination, trade) # we add the variable log(Year) est_2 <- update(est_pois, . ~ . + log(Year)) # we add another cluster: "Product" est_3 <- update(est_2, . ~ . | . + Product) # we remove the cluster "Origin" and the variable log(dist_km) est_4 <- update(est_3, . ~ . - log(dist_km) | . - Origin) # Quick look at the 4 estimations esttable(est_pois, est_2, est_3, est_4)