experimental Applies an upper or lower limit on variable values using the Interquartile Range (IQR) of the variable transformed with the natural logarithm and a scale factor ('times').
Usage
transform_top_code_with_iqr(
lissy_files,
variable,
times = 3,
files_level = NULL,
variable_level = NULL,
weight = NULL
)
transform_bottom_code_with_iqr(
lissy_files,
variable,
times = 3,
files_level = NULL,
variable_level = NULL,
weight = NULL
)Arguments
- lissy_files
A list of LIS or LWS files.
- variable
A character string with the name of the variable that should be transformed.
- times
A numeric indicating the scale factor for IQR. Defaults to 3.
- files_level
A string indicating the level of the file. Valid inputs are: 'household', 'h', 'person' or 'p'. If NULL (default), the file level will be retrived from the 'lissy_files' attributes.
- variable_level
Level of the variable. Should be either 'household', 'h', 'person' or 'p'. If NULL (default), the function will try to guess the level of the variable. This is done by comparing the value in 'variable' with pre-set lists of variables.
- weight
A string with the name of the variable in 'file' that should be used as sample weights.