Creates a custom named or anonymous
The name of the new
Creates a named
cellstyle with the specified
name. Named cell
styles may be used in conjunction with the name prefix style
may also be used directly with the method
setCellStyle. Named cell styles can
easily be changed from within Excel using the cell styles menu.
name is missing, an anonymous cell style is created.
Anonymous cell styles can be used in conjunction with the
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# Load workbook (create if not existing) wb <- loadWorkbook("createCellstyles.xlsx", create = TRUE) # We don't set a specific style action in this demo, so the # default 'XLConnect' will be used (XLC$"STYLE_ACTION.XLCONNECT") # Create a sheet named 'mtcars' createSheet(wb, name = "mtcars") # Create a named region called 'mtcars' referring to the sheet # called 'mtcars' createName(wb, name = "mtcars", formula = "mtcars!$C$4") # Write built-in data set 'mtcars' to the above defined named region. # This will use the default style action 'XLConnect'. writeNamedRegion(wb, mtcars, name = "mtcars") # Now let's color all weight cells of cars with a weight > 3.5 in red # (mtcars$wt > 3.5) # First, create a corresponding (named) cell style heavyCar <- createCellStyle(wb, name = "HeavyCar") # Specify the cell style to use a solid foreground color setFillPattern(heavyCar, fill = XLC$"FILL.SOLID_FOREGROUND") # Specify the foreground color to be used setFillForegroundColor(heavyCar, color = XLC$"COLOR.RED") # Which cars have a weight > 3.5 ? rowIndex <- which(mtcars$wt > 3.5) # NOTE: The mtcars data.frame has been written offset with # top left cell C4 - and we have also written a header row! # So, let's take that into account appropriately. Obviously, # the two steps could be combined directly into one ... rowIndex <- rowIndex + 4 # The same holds for the column index colIndex <- which(names(mtcars) == "wt") + 2 # Set the 'HeavyCar' cell style for the corresponding cells. # Note: the row and col arguments are vectorized! setCellStyle(wb, sheet = "mtcars", row = rowIndex, col = colIndex, cellstyle = heavyCar) # Save workbook (this actually writes the file to disk) saveWorkbook(wb)
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