openxlsx (version 4.2.7.1)

createNamedRegion: Create / delete a named region.

Description

Create / delete a named region

Usage

createNamedRegion(wb, sheet, cols, rows, name, overwrite = FALSE)
deleteNamedRegion(wb, name)

Arguments

wb

A workbook object

sheet

A name or index of a worksheet

cols

Numeric vector specifying columns to include in region

rows

Numeric vector specifying rows to include in region

name

Name for region. A character vector of length 1. Note region names must be case-insensitive unique.

overwrite

Boolean. Overwrite if exists ? Default to FALSE

Author

Alexander Walker

Details

Region is given by: min(cols):max(cols) X min(rows):max(rows)

See Also

getNamedRegions()

Examples

## create named regions
wb <- createWorkbook()
addWorksheet(wb, "Sheet 1")

## specify region
writeData(wb, sheet = 1, x = iris, startCol = 1, startRow = 1)
createNamedRegion(
  wb = wb,
  sheet = 1,
  name = "iris",
  rows = 1:(nrow(iris) + 1),
  cols = 1:ncol(iris)
)


## using writeData 'name' argument
writeData(wb, sheet = 1, x = iris, name = "iris2", startCol = 10)

out_file <- tempfile(fileext = ".xlsx")
if (FALSE) {
saveWorkbook(wb, out_file, overwrite = TRUE)

## see named regions
getNamedRegions(wb) ## From Workbook object
getNamedRegions(out_file) ## From xlsx file

## delete one
deleteNamedRegion(wb = wb, name = "iris2")
getNamedRegions(wb)

## read named regions
df <- read.xlsx(wb, namedRegion = "iris")
head(df)

df <- read.xlsx(out_file, namedRegion = "iris2")
head(df)
}