Color-formatting for data columns based on condition
Convenient function that formats columns in data frames with color codes, where the color is chosen based on certain conditions. Columns are then printed in color in the console.
color_if( x, columns, predicate = `>`, value = 0, color_if = "green", color_else = "red", digits = 2 ) colour_if( x, columns, predicate = `>`, value = 0, colour_if = "green", colour_else = "red", digits = 2 )
x |
A data frame |
columns |
Character vector with column names of |
predicate |
A function that takes |
value |
The comparator. May be used in conjunction with |
color_if, colour_if |
Character vector, indicating the color code used to
format values in |
color_else, colour_else |
See |
digits |
Digits for rounded values. |
The predicate-function simply works like this:
which(predicate(x[, columns], value))
The .
# all values in Sepal.Length larger than 5 in green, all remaining in red x <- color_if(iris[1:10, ], columns = "Sepal.Length", predicate = `>`, value = 5) x cat(x$Sepal.Length) # all levels "setosa" in Species in green, all remaining in red x <- color_if(iris, columns = "Species", predicate = `==`, value = "setosa") cat(x$Species) # own function, argument "value" not needed here p <- function(x, y) { x >= 4.9 & x <= 5.1 } # all values in Sepal.Length between 4.9 and 5.1 in green, all remaining in red x <- color_if(iris[1:10, ], columns = "Sepal.Length", predicate = p) cat(x$Sepal.Length)
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