Calculate final grades for all students in a course

For each student, the mark for each component will be multiplied with its associated weight, and summed up altogether.

calculate_final_grade(courses, grades, course_ids)

Arguments

courses	A dataframe containing component weights for each course
grades	A dataframe containing grades for students
course_ids	A vector of strings representing the course IDs for which final grades should be calculated.

Value

A dataframe containing final grades for all students in a course.

Examples

grades <- data.frame(
course_id = c("511"),
student_id = c("tom"),
lab1 = c(100),
lab2 = c(80)
)
courses <- data.frame(
course_id = c("511"),
lab1 = c(0.45),
lab2 = c(0.55)
)
calculate_final_grade(courses, grades, course_ids = c("511"))
#>   course_id student_id grade
#> 1       511        tom    89