getlet {ProfessR}

Get Letter Grades

Description

Get letter grades from list of numeric scores

Usage

getlet(ggrades, divs)

Arguments

ggrades

vector of grades

divs

numerical vector of divisions

Details

Returns letter grades scaled linearly between divisions.

Value

LIST:

ggrades

Input grades

lett

letter values

scor

scores after scaling

divs

divisions used in setting scores

LETS

Letters for grades

SCRS

numeric divisions used for LETS

olett

letter values, older version

oscor

scores after scaling, older version binned

Author(s)

Jonathan M. Lees<[e-mail]>

See Also

do.grades

Examples

g = rnorm(130, m=82, sd=10)

g[g>100] = 100
g[g<1] = 1



B = boxplot(g)


divs = c(min(g), B$stats[1:4] + diff(B$stats)/2, max(g) )

G = getlet(g, divs)

cbind(G$LETS, G$SCRS)



data.frame(G$grades, G$lett, G$scor)