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Purpose and design

The mosaic package is designed to facilitate the use of R in statistics and calculus instruction by providing a number of functions that (a) make many common tasks fit into a common template, and (b) simplify some tasks that would otherwise be too complicated for beginners.

Installation

You install from CRAN using

install.packages("mosaic")

or from github with

devtools::install_github("ProjectMOSAIC/mosaic")

If you want to try out our developmental code (the beta branch), use

devtools::install_github("ProjectMOSAIC/mosaic", ref="beta")

Updates to the master github repository are more frequent than CRAN updates. Our beta branch is where we implement bug fixes most quickly and develop new features. We try to keep it pretty stable, but there may be a few rough edges, missing documentation, etc. while things are in progress.

If you discover a problem with any version of the package, be sure to let us know so that we can address it. Post an issue on github or send email to Rpkgs@mosaic-web.org.

Getting Started with mosaic

The package includes several vignettes to help you get started. One of these vignettes (Resources Related to the mosaic package) includes a list of many resources, both within the package and external to it. That's a good place to start.

Getting Help

Need help? Try posting a question on Stack Overflow using the tag r-mosaic.

Project MOSAIC

Project MOSAIC is a community of educators working to develop a new way to introduce mathematics, statistics, computation and modeling to students in colleges and universities.

Our goal: Provide a broader approach to quantitative studies that provides better support for work in science and technology. The focus of the project is to tie together better diverse aspects of quantitative work that students in science, technology, and engineering will need in their professional lives, but which are today usually taught in isolation, if at all.

  • Modeling. The ability to create, manipulate and investigate useful and informative mathematical representations of a real-world situations.
  • Statistics. The analysis of variability that draws on our ability to quantify uncertainty and to draw logical inferences from observations and experiment.
  • Computation. The capacity to think algorithmically, to manage data on large scales, to visualize and interact with models, and to automate tasks for efficiency, accuracy, and reproducibility.
  • Calculus. The traditional mathematical entry point for college and university students and a subject that still has the potential to provide important insights to today's students.

The name MOSAIC reflects the first letters --- M, S, C, C --- of these important components of a quantitative education. Project MOSAIC is motivated by a vision of quantitative education as a mosaic where the basic materials come together to form a complete and compelling picture.

Find out more about Project MOSAIC at [http://mosaic-web.org].

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Version

Install

install.packages('mosaic')

Monthly Downloads

14,995

Version

0.14.4

License

GPL (>= 2)

Issues

Pull Requests

Stars

Forks

Maintainer

Randall Pruim

Last Published

July 29th, 2016

Functions in mosaic (0.14.4)

mean_

Aggregating functions
aggregatingFunction1or2

1- or 2-ary aggregating functions
bargraph

Create bar graphs from raw data
maggregate

Aggregate for mosaic
ashplot

Average Shifted Histograms
as.xtabs

Convert objects to xtabs format
adapt_seq

Adaptively generate sequences in an interval
Broyden

Multi-Dimensional Root Finding
aggregatingFunction1

1-ary Aggregating functions
aggregatingFunction2

2-ary aggregating functions
D

Derivative and Anti-derivative operators
columns

return a vector of row or column indices
chisq

Extract Chi-squared statistic
compareMean

Compare means between 2 groups
compareProportion

Compare proportions between 2 groups
cdist

Central portion of a distribution
CIsim

Compute confidence intervals from (multiple) simulated data sets
fortify.hclust

mosaic tools for clustering
CIAdata

Return a dataset based on the CIA World Factbook
coef.function

Extract coefficients from a function
fetchData

Defunct functions now in the fetch package
derivedVariable

Create new variables from logicals
do

Do Things Repeatedly
diffmean

Difference in means and proportions
dfapply

apply-type function for data frames
docFile

Return the path to a documentation file in a package
deg2rad

Convert between degrees and radians
deltaMethod

deltaMethod has moved to a separate package
cross

Factor cross products
cull_for_do

Cull objects used with do()
fav_stats

Some favorite statistical summaries
dotPlot

Dotplots
dpqrdist

Distribution wrapper
expandFun

Expand the left-hand side of a formula
factorize

Conditionally convert vectors to factors
evalSubFormula

Evaluate a part of a formula
findZeros

Find zeros of functions
findZerosMult

Find the zeros of a function of two or more variables
ediff

Lagged Differences with equal length
evalFormula

Evaluate a formula
fitModel

Fit a nonlinear least squares model
fitSpline

Fit splines to data
FunctionsFromData

Create function from data
StatSpline

Geoms and stats for spline smoother
getVarFormula

Extract data from a data frame using a formula interface
googleMap

Display a point on earth on a Google Map
freqpolygon

Frequency Polygons
freqpoly

Turn histograms into frequency polygons
fortify.summary.lm

Extract data from R objects
formularise

Convert lazy objects into formulas
confint.htest

Extract summary statistics
joinFrames

Join data frames
is.wholenumber

Check for whole number values
gwm

Groupwise models Construct a model based on groupwise means or proportions
ladd

Add to Lattice Plots
inferArgs

Infer arguments
inspect

Inspect objects
integrateODE

Integrate ordinary differential equations
xyz2latlon

Convert back and forth between latitude/longitude and XYZ-space
linear.algebra

Functions for teaching linear algebra.
MAD

All pairs mean and sum of absolute differences
mWorldMap

Make a world map with ggplot2
makeColorscheme

Create a color generating function from a vector of colors
n_missing

counting missing elements
qdata

The Data Distribution
qdata_v

The Data Distribution
mosaic_formula

Convert formulas into standard shapes
mid

midpoints along a sequence
mplot

Generic plotting
mm

Construct a model based on groupwise means
named

List extraction
pdist

Illustrated probability calculations from distributions
nice_names

Nice names
repeater-class

Repeater objects
perctable

Cross tabulation displayed as percents or proportions
resample

More Random Samples
modelVars

extract predictor variables from a model
print.msummary.lm

Modified summaries
.is.formula

Check if formula
mUSMap

Make a US map with ggplot2
orrr

Odds Ratio and Relative Risk for 2 x 2 Contingency Tables
panel.levelcontourplot

Lattice plot that draws a filled contour plot
plotCumfreq

Cumulative frequency plots
rescale

Rescale
plotDist

Plots of Discrete and Continuous Distributions
rflip

Tossing Coins
relm

Resample a Linear Model
reexports

Objects exported from other packages
.polyExp

Takes a call and returns its polynomial coefficients
sp2df

Transforms a shapefile into a dataframe
zscore

Compute z-scores
makeFun

Create a function from a formula
ntiles

Create vector based on roughly equally sized groups
makeMap

Make a map with ggplot2
numD

Numerical Derivatives
prop.test

Exact and Approximate Tests for Proportions
prop

Compute proportions, percents, or counts for a single level
rlatlon

Sample longitude and latitude on a sphere
rkintegrate

A simple Runge-Kutte integrator
xpnorm

Augmented versions of pnorm and qnorm
MAD_

All pairs mean and sum of absolute differences
logical2factor

Turn logicals into factors; leave other things alone
MSPE

Mean Squared Prediction Error
panel.plotFun1

Panel function for plotting functions
plotModel

Plot a regression model
parse.formula

Parse formulas
plotPoints

Scatter plot of points
rand

Random Regressors
read.file

Read data files
rspin

Simulate spinning a spinnner
rsquared

Extract r-squared value
symbolicD

Symbolic Derivatives
symbolicInt

Find the symbolic integral of a formula
xchisq.test

Augmented Chi-squared test
xhistogram

Augmented histograms
rfun

Generate a natural-looking function
rgeo-internals

rgeo internal functions
tally

Tabulate categorical data
update_ci

Update confidence interval
TukeyHSD.lm

Additional interfaces to TukeyHSD
theme_map

ggplot2 theme for maps
mosaic-package

mosaic: the Project MOSAIC package
mosaic.options

Setting options for mosaic package functions
panel.lmbands

show confidence and preciction bands on plots
panel.plotFun

Panel function for plotting functions
predict.groupwiseModel

Evaluate a groupwise model given new data
project

Projections
qdist

Illustrated quantile calculations from distributions
standardName

Standardization of Geographic Names
set.rseed

Set seed in parallel compatible way
r.squared

Extract r-squared value
rstudio_is_available

Check whether RStudio is in use
statTally

Tally test statistics
theme.mosaic

Lattice Theme
t_test

Student's t-Test
surround

Format strings for pretty output
swap

Swap values among columns of a data frame
vector2df

Convert a vector to a data frame
value

Extract value from an object
xqqmath

Augmented version of qqmath
mPlot

Interactive plotting
confint

Confidence interval methods for output of resampling
plotFun

Plotting mathematical expressions
binom.test

Exact Tests for Proportions
logit

Logit and inverse logit functions