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lessR (version 2.1.1)

Less Code, More Results

Description

Each function accomplishes the work of several or more standard R functions. For example, two function calls, rad() and full(), together read the csv data and generate descriptive statistics for all variables in the data frame, plus histograms and bar charts for all respective numerical and non-numerical variables. The function smd.t.test introduces the ODDSMD plot, which displays the Overlapping Density Distributions of two independent groups as well as a visual display of the mean difference and standardized mean difference. Other functions provide for descriptive statistics, the t-test from descriptive statistics, a comprehensive regression analysis, color plotting, color bar chart, color histogram, color box plot, density curves, a calibrated power curve plotted with colors, and the reading and display of csv formatted data. The function help.me provides a help system that suggests specific analyses and functions. Variable labels are also available.

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Version

Install

install.packages('lessR')

Monthly Downloads

4,097

Version

2.1.1

License

GPL (>= 2)

Maintainer

David W Gerbing

Last Published

February 12th, 2012

Functions in lessR (2.1.1)

help.me

Help System for Statistics by Topic that Suggests Related Functions
prob.norm

Compute and Plot Normal Curve Probabilities over an Interval
label

Get a Variable Label for Display on Output
plt

Color Scatter Plot, Function Plot, or Run Chart with Optional Dates
out

Write the Contents of Data Frame mydata to a csv File
dens

Data Based Density Curves with Color and Histogram
dots

Data Based Density Curves with Color and Histogram
full

Full Descriptive Analysis of all Variables in the Data Frame
rad

Read, Attach and Display Contents of a Data File
hst

Histogram with Color
sim.mean

Pedagogical Simulation of Sample Means
sim.binomial

Pedagogical Binomail Simulation, Coin Flips
color.show

Display Named R Colors and rgb Values
bx

Color Boxplot
reg

Regression Analysis
bc

Bar Chart of One or Two Variables with Color
values

List the values of a Variable
sim.CImean

Pedagogical Simulation for the Confidence Interval of the Mean
stats.ttest

Generic Method for One- or Two-Sample t-test from Summary Statistics
powercurve.t.test

Compute a Power Curve with Colors
ttest

Generic Method for t-test and Standardized Mean Difference with Enhanced Graphics
pc

Pie Chart
ss

Summary Statistics with an Option for Each Level of Another Variable
stats.t.test

Generic Method for One- or Two-Sample t-test from Summary Statistics