grade (version 0.2-1)

grade.number: Grade Single Numbers

Description

Checks studentans against correctans. For scalars only.

Usage

grade.number(correctans, studentans, tolerance=0.01, useeval=TRUE, usena=FALSE, useinf=FALSE, quiet=TRUE)

Arguments

correctans

a vector of type numeric or a string

studentans

a vector of type numeric or a string

tolerance

a string or numeric representing the accepted component wise tolerance

useeval

TRUE or FALSE indicates whether or not to use 'eval' on strings

usena

TRUE or FALSE indicating whether or not NA is an accepted value

useinf

TRUE or FALSE indicating whether or not Inf and -Inf are accepted values

quiet

TRUE or FALSE. If TRUE there are more warning messages when checks fail. Can be helpful for debugging.

Value

TRUE if studentans is within tolerance of correctans. FALSE otherwise.

See Also

grade grade.set grade.negative

Examples

grade.number(1, "1") # TRUE
grade.number(1, "1.1", tolerance=".01") # FALSE

grade.number(pi, "3.142", tolerance=".001") # TRUE

grade.number(1, "[1]") # TRUE