lodr (version 1.0)

residuals.lod_lm: Extract lod_lm residuals

Description

Extracts residuals from object of class "lod_lm".

Usage

# S3 method for lod_lm
residuals(object, ...)

Arguments

object

An object of class "lod_lm", usually, a result of a call to lod_lm

...

further arguments passed to or from other methods.

Value

Residuals extracted from object as a named numeric vector.

Details

For subjects with covariates outside of limits of detection, when computing residuals the values for these covariates are set according to method specified by argument fill_in_method in call to lod_lm.

References

maylodr

See Also

fitted.lod_lm and coef.lod_lm for related methods; lod_lm for model fitting.

The generic functions coef and fitted.

Examples

# NOT RUN {
library(lodr)
## Using example dataset provided in lodr package: lod_data_ex
## 3 covariates: x1, x2, x3 with x2 and x3 subject to a lower limit of
## detection of 0

## nSamples set to 100 for computational speed/illustration purposes only.  
## At least 250 is recommended.  Same for boots=0; results in NAs returned for standard errors

fit <- lod_lm(data=lod_data_ex, frmla=y~x1+x2+x3, lod=c(0,0),
                  var_LOD=c("x2", "x3"), nSamples=100, boots=0)
 residuals(fit)
# }