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maat (version 1.1.0)

changeGrade: Grade operator: add or subtract

Description

changeGrade is an operator for grade values.

Usage

changeGrade(grade, delta)

Arguments

grade

a string containing the current grade in the form G?, where ? is a number.

delta

a number containing the relative change in grade to apply. 0 retains the current grade as-is.

Value

a string containing the new grade.

Examples

Run this code
# NOT RUN {
changeGrade("G4",  0) ## G4
changeGrade("G4",  1) ## G5
changeGrade("G4", -1) ## G3
changeGrade("G10", 1) ## G11

# }

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