umx_grep: Search for text

In umx: Structural Equation Modeling and Twin Modeling in R

Search for text

Description

Search names if given a data.frame, or strings if given a vector of strings.

Usage

umx_grep(
  df,
  grepString,
  output = c("both", "label", "name"),
  ignore.case = TRUE,
  useNames = FALSE
)

Arguments

df	The data.frame() or string to search.
grepString	the search string.
output	the column name, the label, or both (default).
ignore.case	whether to be case sensitive or not (default TRUE = ignore case).
useNames	whether to search the names as well as the labels (for SPSS files with label metadata).

Details

The namez function is more flexible. A handy feature of umx_grep is that it can search the labels of data imported from SPSS.

nb: To simply grep for a pattern in a string use R's built-in grep() functions, e.g.: ⁠grepl("^NA\\[0-9]", "NA.3")⁠

Value

• list of matched column names and/or labels.

References

• https://github.com/tbates/umx

See Also

• namez(), umx_aggregate(), grep()

Other String Functions: umx_explode_twin_names(), umx_explode(), umx_names(), umx_paste_names(), umx_rot(), umx_str_chars(), umx_str_from_object(), umx_trim(), umx

Examples

umx_grep(mtcars, "hp", output="both", ignore.case= TRUE)
umx_grep(c("hp", "ph"), "hp")
umx_grep(mtcars, "^h.*", output="both", ignore.case= TRUE)
## Not run: 
umx_grep(spss_df, "labeltext", output = "label") 
umx_grep(spss_df, "labeltext", output = "name") 

## End(Not run)

umx documentation built on May 29, 2024, 5:40 a.m.