Description Usage Arguments Details Value Author(s) See Also
Compute lagged variables
1 |
var |
variable for lagging |
k |
lag |
selection |
a logical indicating whether |
This function is used mainly to assess lagged exposure to meteorological factors and/or pollutants. The argument k
controls the lag distance.
The function may be used inside a model formula to estimate the lagged exposure effects.
Return the variable var
lagged. If .ares.selection
is set, lagged var
is cut accordingly.
Washington Junger wjunger@ims.uerj.br and Antonio Ponce de Leon ponce@ims.uerj.br
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