RDring_coef: Plot coefficients of roadrings of fitting a linear regression...
In mengluchu/APMtools: statistical air pollution mapping tools

Plot coefficients of roadrings of fitting a linear regression model.

RDring_coef(
  variabledf,
  y_var,
  Road_varname = "ROAD",
  number_roadtypes = 3,
  buffers_in,
  buffers_out,
  pop_var = NA,
  normalize = F
)

`variabledf`	dataframe including predictors and dependent variable
`y_var`	the quote of dependent variable name (e.g. quote (value_mean))
`Road_varname`	the name of variables contains road buffers, e.g. 'ROAD'
`number_roadtypes`	number of roadtypes, by default 3
`buffers_in`	buffers of the inner ring
`buffers_out`	buffers of the outer ring
`pop_var`	other variables added to linear regression, in a list or vector if multiple. e.g. popvar = c('pop3k', 'RSp', 'elevation')