Skip to contents

Create an answer object for a quiz question

Source: R/answer.R
answer_single.Rd

This function is a wrapper that creates the appropriate answer object based on the input. It can handle multiple choice questions, true/false questions, short answer questions, numerical questions (with exact answers, precision-based answers, or range-based answers), and matching questions. The function will automatically determine the type of question based on the format of the input and create the corresponding answer object using the appropriate helper functions.

Usage

answer_single(x, y = NULL, tol = 0, precision = 0)

Arguments

x

The correct answer(s) for the question. See details for the expected format based on the type of question.

y

Additional parameter for certain question types. See details for the expected format based on the type of question.

tol

The acceptable error margin for the answer. Defaults to 0 for an exact answer.

precision

The number of decimal places the answer must be correct to.

Details

The function uses the following logic to determine the type of question:

  • If x is a logical value and y is NULL, it creates a true/false question using answer_true_false().

  • If x is a single numeric value and y is NULL, it creates a numerical question with an exact answer using answer_num(). If tol is greater than 0, it creates a numerical question with an error margin. If precision is greater than 0, it creates a numerical question with a specified precision.

  • If x is a numeric vector of length 2, it creates a numerical question with a range-based answer using answer_num_range(). Alternatively, if x is a single numeric value and y is a single numeric value, it also creates a numerical question with a range-based answer using answer_num_range(), where x is the lower bound and y is the upper bound.

  • If x is a named character vector, it creates a matching question using answer_matching(). Any extra choices for the matching question can be provided in y.

  • If x and y are character vectors, it creates a multiple choice question using answer_mcq().

  • If the input format does not match any of the above cases, the function throws an error indicating that the answer format is unsupported.

See also

Other answer-functions: answer_essay(), answer_matching(), answer_mcq(), answer_multiple(), answer_none(), answer_num(), answer_text(), answer_true_false(), answer_upload_file()