Add conditional formatting to cells

Description

Add conditional formatting to cells

Usage

conditionalFormatting(wb, sheet, cols, rows, rule = NULL, style = NULL,
  type = "expression")

Arguments

Details

See Examples.

If type == "expression"

• style is a Style object. See createStyle

• rule is an expression. Valid operators are "<", "<=", ">", ">=", "==", "!=".

If type == "colourScale"

• style is a vector of colours with length 2 or 3

• rule can be NULL or a vector of colours of equal length to styles

If type == "databar"

• style is a vector of colours with length 2 or 3

• rule is a numeric vector sepcifiying the range of the databar colours. Must be equal length to style

If type == "duplicates"

• style is a Style object. See createStyle

• rule is ignored.

If type == "contains"

• style is a Style object. See createStyle

• rule is the text to look for within cells

Author(s)

Alexander Walker

See Also

createStyle

Examples

wb <- createWorkbook()
addWorksheet(wb, "cellIs")
addWorksheet(wb, "Moving Row")
addWorksheet(wb, "Moving Col")
addWorksheet(wb, "Dependent on 1")
addWorksheet(wb, "Duplicates")
addWorksheet(wb, "containsText")
addWorksheet(wb, "colourScale", zoom = 30)
addWorksheet(wb, "databar")

negStyle <- createStyle(fontColour = "#9C0006", bgFill = "#FFC7CE")
posStyle <- createStyle(fontColour = "#006100", bgFill = "#C6EFCE")

## rule applies to all each cell in range
writeData(wb, "cellIs", -5:5)
writeData(wb, "cellIs", LETTERS[1:11], startCol=2)
conditionalFormatting(wb, "cellIs", cols=1, rows=1:11, rule="!=0", style = negStyle)
conditionalFormatting(wb, "cellIs", cols=1, rows=1:11, rule="==0", style = posStyle)

## highlight row dependent on first cell in row
writeData(wb, "Moving Row", -5:5)
writeData(wb, "Moving Row", LETTERS[1:11], startCol=2)
conditionalFormatting(wb, "Moving Row", cols=1:2, rows=1:11, rule="$A1<0", style = negStyle)
conditionalFormatting(wb, "Moving Row", cols=1:2, rows=1:11, rule="$A1>0", style = posStyle)

## highlight column dependent on first cell in column
writeData(wb, "Moving Col", -5:5)
writeData(wb, "Moving Col", LETTERS[1:11], startCol=2)
conditionalFormatting(wb, "Moving Col", cols=1:2, rows=1:11, rule="A$1<0", style = negStyle)
conditionalFormatting(wb, "Moving Col", cols=1:2, rows=1:11, rule="A$1>0", style = posStyle)

## highlight entire range cols X rows dependent only on cell A1
writeData(wb, "Dependent on 1", -5:5)
writeData(wb, "Dependent on 1", LETTERS[1:11], startCol=2)
conditionalFormatting(wb, "Dependent on 1", cols=1:2, rows=1:11, rule="$A$1<0", style = negStyle)
conditionalFormatting(wb, "Dependent on 1", cols=1:2, rows=1:11, rule="$A$1>0", style = posStyle)

## highlight duplicates using default style
writeData(wb, "Duplicates", sample(LETTERS[1:15], size = 10, replace = TRUE))
conditionalFormatting(wb, "Duplicates", cols = 1, rows = 1:10, type = "duplicates")

## cells containing text
fn <- function(x) paste(sample(LETTERS, 10), collapse = "-")
writeData(wb, "containsText", sapply(1:10, fn))
conditionalFormatting(wb, "containsText", cols = 1, rows = 1:10, type = "contains", rule = "A")

## colourscale colours cells based on cell value
df <- read.xlsx(system.file("readTest.xlsx", package = "openxlsx"), sheet = 4)
writeData(wb, "colourScale", df, colNames=FALSE)  ## write data.frame

## rule is a vector or colours of length 2 or 3 (any hex colour or any of colours())
## If rule is NULL, min and max of cells is used. Rule must be the same length as style or NULL.
conditionalFormatting(wb, "colourScale", cols=1:ncol(df), rows=1:nrow(df),
   style = c("black", "white"),
   rule = c(0, 255),
   type = "colourScale")

setColWidths(wb, "colourScale", cols = 1:ncol(df), widths = 1.07)
setRowHeights(wb, "colourScale", rows = 1:nrow(df), heights = 7.5)

## Databars
writeData(wb, "databar", -5:5)
conditionalFormatting(wb, "databar", cols = 1, rows = 1:12, type = "databar") ## Default colours

saveWorkbook(wb, "conditionalFormattingExample.xlsx", TRUE)

Results