function to calculate z-scores for numeric exposure using weights weight.var
standardizeExposures(
specObj,
Std.Type = c("None", "CrossSection", "TimeSeries"),
lambda = 0.9
)the ffmSpec object with exposures z-scored
is a ffmSpec object,
method for exposure standardization; one of "none",
"CrossSection", or "TimeSeries".
Default is "none".
lambda value to be used for the EWMA estimation of residual variances. Default is 0.9
this function operates on the data inside the specObj and applies a standardization to it. The user can choose CrossSectional or timeSeries standardization
specFfm for information on the definition of the specFfm object.