log_trans {creditmodel}

Logarithmic transformation

Description

log_trans is for logarithmic transformation

Usage

log_trans(
  dat,
  target,
  x_list = NULL,
  cor_dif = 0.01,
  ex_cols = NULL,
  note = TRUE
)

log_vars(dat, x_list = NULL, target = NULL, cor_dif = 0.01, ex_cols = NULL)

Arguments

dat

A data.frame.

target

The name of target variable.

x_list

A list of x variables.

cor_dif

The correlation coefficient difference with the target of logarithm transformed variable and original variable.

ex_cols

Names of excluded variables. Regular expressions can also be used to match variable names. Default is NULL.

note

Logical, outputs info. Default is TRUE.

Value

Log transformed data.frame.

Examples

dat = log_trans(dat = UCICreditCard, target = "default.payment.next.month",
x_list =NULL,cor_dif = 0.01,ex_cols = "ID", note = TRUE)