imaginer: Match Two Items, Select, and Document
In kthorstmann/padis: Functions For The Analysis Of Wake-Forest Data

Description Usage Arguments Value Examples

View source: R/padis_specific_functions.R

This function matches two items (identified based on their stem, see match_ir), documents which of the two items had a value and not a missing value, and returns a data frame with two or all plus two colums (depending on return_complete_data), where the first columns are the original columns from data, and the last two colums are the origin of the value and the value itself.

1 2	imaginer(data, var_stem, return_complete_data = FALSE, end_pattern = c(".r", ".i"), code_pattern = c(1, 0), return_indicator = TRUE)

`data`	The data frame that contains the variables
`var_stem`	The stem of the item, i.e. the character stringr that both items share. Passed on to `match_ir`
`return_complete_data`	Logical, if `TRUE`, then the complete data frame is returned along with the two new values
`end_pattern`	The end pattern to search for. Default is `c(".r", ".i")`
`code_pattern`	The code pattern to be used. Default is `c(1, 0)`. This means that if a value originates from the .r-variable, it is documented with a 1, and if it originates from a .i-variable, it is documented with a 0 in the indicator variable. If both columns (.r and .i) contain a missing value for a person, this value will be coded as 999.
`return_indiciator`	Logical. Should the indicator variable be returned as well? Default is to `TRUE`. If set to `FALSE`, only the final, merged variable is returned

A data frame with either 2 colums or all original columns and two additional columns.

data <- imaginer_example_data
imaginer(data, var_stem="PSP1.variable.", return_complete_data=TRUE)

## return without the indicator variable
imaginer(data, var_stem="PSP1.variable.", return_complete_data=TRUE,
return_indicator = FALSE)