Add conditional formatting to cells

Usage

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

wb: A workbook object
sheet: A name or index of a worksheet
cols: Columns to apply conditional formatting to
rows: Rows to apply conditional formatting to
rule: The condition under which to apply the formatting or a vector of colours. See examples.
style: A style to apply to those cells that satisfy the rule. A Style object returned from createStyle()
type: Either 'expression', 'colorscale' or 'databar'. If 'expression' the formatting is determined by a formula. If colorScale cells are coloured based on cell value. See examples.

Valid operators are "<", "<=", ">", ">=", "==", "!=". See Examples. Default style given by: createStyle(fontColour = "#9C0006", bgFill = "#FFC7CE")

Alexander Walker