writeData: Write an object to a worksheet

In openxlsx: Read, Write and Edit xlsx Files

Write an object to a worksheet

Description

Write an object to worksheet with optional styling.

Usage

writeData(
  wb,
  sheet,
  x,
  startCol = 1,
  startRow = 1,
  array = FALSE,
  xy = NULL,
  colNames = TRUE,
  rowNames = FALSE,
  headerStyle = openxlsx_getOp("headerStyle"),
  borders = openxlsx_getOp("borders", "none"),
  borderColour = openxlsx_getOp("borderColour", "black"),
  borderStyle = openxlsx_getOp("borderStyle", "thin"),
  withFilter = openxlsx_getOp("withFilter", FALSE),
  keepNA = openxlsx_getOp("keepNA", FALSE),
  na.string = openxlsx_getOp("na.string"),
  name = NULL,
  sep = ", ",
  col.names,
  row.names
)

Arguments

wb	A Workbook object containing a worksheet.
sheet	The worksheet to write to. Can be the worksheet index or name.
x	Object to be written. For classes supported look at the examples.
startCol	A vector specifying the starting column to write to.
startRow	A vector specifying the starting row to write to.
array	A bool if the function written is of type array
xy	An alternative to specifying startCol and startRow individually. A vector of the form c(startCol, startRow).
colNames	If TRUE, column names of x are written.
rowNames	If TRUE, data.frame row names of x are written.
headerStyle	Custom style to apply to column names.
borders	Either "none" (default), "surrounding", "columns", "rows" or respective abbreviations. If "surrounding", a border is drawn around the data. If "rows", a surrounding border is drawn with a border around each row. If "columns", a surrounding border is drawn with a border between each column. If "all" all cell borders are drawn.
borderColour	Colour of cell border. A valid colour (belonging to colours() or a hex colour code, eg see here).
borderStyle	Border line style none no border thin thin border medium medium border dashed dashed border dotted dotted border thick thick border double double line border hair hairline border mediumDashed medium weight dashed border dashDot dash-dot border mediumDashDot medium weight dash-dot border dashDotDot dash-dot-dot border mediumDashDotDot medium weight dash-dot-dot border slantDashDot slanted dash-dot border
withFilter	If TRUE or NA, add filters to the column name row. NOTE can only have one filter per worksheet.
keepNA	If TRUE, NA values are converted to #N/A (or na.string, if not NULL) in Excel, else NA cells will be empty.
na.string	If not NULL, and if keepNA is TRUE, NA values are converted to this string in Excel.
name	If not NULL, a named region is defined.
sep	Only applies to list columns. The separator used to collapse list columns to a character vector e.g. sapply(x$list_column, paste, collapse = sep).
row.names, col.names	Deprecated, please use rowNames, colNames instead

Details

Formulae written using writeFormula to a Workbook object will not get picked up by read.xlsx(). This is because only the formula is written and left to Excel to evaluate the formula when the file is opened in Excel.

Value

invisible(0)

Author(s)

Alexander Walker

See Also

writeDataTable()

Examples

## See formatting vignette for further examples.

## Options for default styling (These are the defaults)
options("openxlsx.borderColour" = "black")
options("openxlsx.borderStyle" = "thin")
options("openxlsx.dateFormat" = "mm/dd/yyyy")
options("openxlsx.datetimeFormat" = "yyyy-mm-dd hh:mm:ss")
options("openxlsx.numFmt" = NULL)

## Change the default border colour to #4F81BD
options("openxlsx.borderColour" = "#4F81BD")


#####################################################################################
## Create Workbook object and add worksheets
wb <- createWorkbook()

## Add worksheets
addWorksheet(wb, "Cars")
addWorksheet(wb, "Formula")


x <- mtcars[1:6, ]
writeData(wb, "Cars", x, startCol = 2, startRow = 3, rowNames = TRUE)

#####################################################################################
## Bordering

writeData(wb, "Cars", x,
  rowNames = TRUE, startCol = "O", startRow = 3,
  borders = "surrounding", borderColour = "black"
) ## black border

writeData(wb, "Cars", x,
  rowNames = TRUE,
  startCol = 2, startRow = 12, borders = "columns"
)

writeData(wb, "Cars", x,
  rowNames = TRUE,
  startCol = "O", startRow = 12, borders = "rows"
)


#####################################################################################
## Header Styles

hs1 <- createStyle(
  fgFill = "#DCE6F1", halign = "CENTER", textDecoration = "italic",
  border = "Bottom"
)

writeData(wb, "Cars", x,
  colNames = TRUE, rowNames = TRUE, startCol = "B",
  startRow = 23, borders = "rows", headerStyle = hs1, borderStyle = "dashed"
)


hs2 <- createStyle(
  fontColour = "#ffffff", fgFill = "#4F80BD",
  halign = "center", valign = "center", textDecoration = "bold",
  border = "TopBottomLeftRight"
)

writeData(wb, "Cars", x,
  colNames = TRUE, rowNames = TRUE,
  startCol = "O", startRow = 23, borders = "columns", headerStyle = hs2
)




#####################################################################################
## Hyperlinks
## - vectors/columns with class 'hyperlink' are written as hyperlinks'

v <- rep("https://CRAN.R-project.org/", 4)
names(v) <- paste0("Hyperlink", 1:4) # Optional: names will be used as display text
class(v) <- "hyperlink"
writeData(wb, "Cars", x = v, xy = c("B", 32))


#####################################################################################
## Formulas
## - vectors/columns with class 'formula' are written as formulas'

df <- data.frame(
  x = 1:3, y = 1:3,
  z = paste0(paste0("A", 1:3 + 1L), paste0("B", 1:3 + 1L), sep = " + "),
  stringsAsFactors = FALSE
)

class(df$z) <- c(class(df$z), "formula")

writeData(wb, sheet = "Formula", x = df)


#####################################################################################
## Save workbook
## Open in excel without saving file: openXL(wb)
## Not run: 
saveWorkbook(wb, "writeDataExample.xlsx", overwrite = TRUE)

## End(Not run)

openxlsx documentation built on Sept. 20, 2024, 5:08 p.m.