Convert a list to a formatting list

Converts a normal list to a formatting list. All other parameters are the same as the flist function.

# S3 method for list
as.flist(x, type = "column", lookup = NULL, simplify = TRUE)

Arguments

x

List to convert.

type

The type of formatting list. Valid values are 'row' or 'column'. The default value is 'column'.

lookup

A lookup vector. Used for looking up the format from the formatting list. This parameter is only used for 'row' type formatting lists.

simplify

Whether to simplify the results to a vector. Valid values are TRUE or FALSE. Default is TRUE. If the value is set to FALSE, the return type will be a list.

Value

A formatting list object.

Details

To apply more than one formatting object to a vector, use a formatting list. There are two types of formatting list: column and row. The column type formatting lists applies all formats to all values in the vector. The row type formatting list can apply a different format to each value in the vector.

Further, there are two styles of row type list: ordered and lookup. The ordered style applies each format in the list to the vector values in the order specified. The ordered style will recycle the formats as needed. The lookup style formatting list uses a lookup to determine which format from the list to apply to a particular value of the vector. The lookup column values should correspond to names on the formatting list.

Examples of column type and row type formatting lists are given below.

See also

flist function documentation for additional details.

Other flist: as.data.frame.fmt_lst(), as.flist.data.frame(), as.flist.fcat(), as.flist.tbl_df(), as.flist(), flist(), is.flist(), print.fmt_lst()

Examples

# Example 1: Create flist from list - column type
lst1 <- list("%d%b%Y", "%.1f")
fl1  <- as.flist(lst1, type = "column")

# Example 2: Create flist from list - row type
lst2 <- list(lkup = c(A = "Label A", B = "Label B"),
             dec1 = "%.1f",
             dt1  = "%d%b%Y")
fl2 <- as.flist(lst2, type = "row")