exams.forge-package {exams.forge}

exams.forge: A brief description the package

Description

The exams.forge package was created with the main goal of "forging" exam tasks in combination with the exams package, and it includes additional functions to simplify the creation of Moodle exercises. The package features various functions categorized into seven groups based on their characteristics. These categories are named: Data Conversion and Modification, Statistical Analysis, Mathematical Computations, Exercise Generation, String Manipulation, LaTeX and HTML Functions, and General Purpose Functions.

Details

This package is designed for educators who need to develop examination materials in the field of statistics, particularly for introductory courses like Statistics I and II, using the R programming language. The aim is to streamline the process of creating a large number of assessment items, enabling instructors to focus on improving the quality of the tasks themselves.

We would like to acknowledge the support provided by the Multimedia Funding Program. Their assistance has been invaluable to our project, and we extend our sincere gratitude for their contributions.

Features of the package

• Feature 1: exams.forge simplifies the generation of examination tasks by providing tools to create a diverse array of statistical exercises, ensuring unique problem sets for each student.

• Feature 2: It includes functions for precise data conversion, statistical analysis, and mathematical computations, enhancing the accuracy and relevance of generated exercises.

• Feature 3: The package supports multi-format rendering, allowing the seamless creation of LaTeX and HTML documents suitable for various educational platforms, such as Moodle.

Functions

Examples of functions included in the package:

• ts_data: Creates a univariate time series by combining elements of a linear or exponential trend, additive or multiplicative seasonal adjustment, and white noise. The resulting time series is structured as a ⁠ts_data object⁠, allowing for further analysis and exploration.

• lmatrix: Creates a LaTeX or HTML representation of a matrix. This function is useful for integrating well-formatted matrices into LaTeX or HTML documents.

• as_obs: Creates a string representing observations with optional sorting and LaTeX formatting, useful for generating readable data representations in educational materials.

Usage

Example usage of the package and its functions.

library(exams.forge) # Generate a time series with specified parameters ts_eg <- ts_data(end = 20, trend = TRUE, trend.coeff = c(1, 0.5), season = TRUE, season.coeff = c(0.2, 0.1), error = TRUE, error.coeff = 0.1, digits = 2) print(ts_eg)

# Create a matrix mx_data <- matrix(1:6, ncol = 2) # Generate a LaTeX representation of the matrix with tooltip eg_matrix <- lmatrix( m = mx_data, title = "Example LaTeX Matrix", fmt = " byrow = TRUE, tooltip = "Die Tabelle hat cat(eg_matrix)

# Create a string representation of observations observations <- c(10, 20, 30, 40, 50) observation_string <- as_obs(observations, last = " and ") print(observation_string)

Installation

To install this package please use the following command: install.packages("exams.forge")

Author(s)

Sigbert Klinke, Affiliation: Humboldt University of Berlin, School of Business and Economics, Chair of Statistics.

Maintainer

Sigbert Klinke [e-mail]

License

Gnu General Public License 3.

Author(s)

Maintainer: Sigbert Klinke [e-mail]