| age_calc | Function to calculate age from date of birth. |
| autoplot.lm | A function to replicate the basic plot function for linear models in ggplot2 |
| cleanTex | Remove Unwanted LaTeX files after building document |
| crosstabplot | Draw a visual crosstab (mosaic plot) with shading for correlations and labels in each cell. |
| crosstabs | Build a list of crosstabulations from a dataset |
| cutoff | A function to calculate thresholds of cumulative sums in a vector. |
| decomma | Remove commas from numeric fields and return them as numerics |
| defac | Convert a factor to a character string safely |
| eeptools | Evaluation of educational policy tools |
| gelmansim | Generate prediction intervals for model functions |
| isid | A function to check if a set of variables form a unique ID in a dataframe. |
| lag_data | Create a lag |
| leading_zero | Function to add leading zeroes to maintain fixed width. |
| makenum | a function to convert numeric factors into numeric class objects |
| max_mis | A function to safely take the maximum of a vector that could include only NAs. |
| midsch | A dataframe of aggregate test scores for schools in a Midwest state. |
| moves_calc | Function to calculate the number of times a student has changed schools. |
| nth_max | Find the nth maximum value |
| profpoly | Creates a proficiency polygon in ggplot2 for showing assessment categories |
| profpoly.data | Creates a data frame suitable for building custom polygon layers in ggplot2 objects |
| remove_char | A function to replace an arbitrary character like a "*" in redacted data with an NA in R |
| retained_calc | Function to calculate whether a student has repeated a grade. |
| statamode | A function to mimic the mode function in Stata. |
| stuatt | Student Attributes from the Strategic Data Project Toolkit |
| stulevel | A synthetic data set of K-12 student attributes. |
| theme_dpi | a deprecated ggplot2 theme developed for PDF and PNG for use at the Wisconsin Department of Public Instruction |
| theme_dpi_map | a deprecated ggplot2 theme developed for PDF or SVG maps |
| theme_dpi_map2 | an alternate deprecated ggplot2 theme developed for PDF or SVG maps |
| theme_dpi_mapPNG | an deprecated ggplot2 theme developed for PNG or JPG maps |
| thresh | A function to return the maximum percentage of the cumulative sum represented by a subset of the vector |