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lessR (version 1.9.8)

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.

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Version

Install

install.packages('lessR')

Monthly Downloads

2,931

Version

1.9.8

License

GPL (>= 2)

Maintainer

David W Gerbing

Last Published

June 30th, 2011

Functions in lessR (1.9.8)

help.me

Help System for Statistics by Topic that Suggests Related Functions
color.plot

Color Scatter-Plot, Function Plot, or Run Chart with Optional Dates
powercurve.t.test

Compute a Power Curve with Colors
rad

Read, Attach and Display Contents of a csv File
color.hist

Histogram with Color
color.density

Data Based Density Curves with Color and Histogram
reg

Regression Analysis
color.barchart

Bar Chart of One or Two Variables with Color
full

Full Descriptive Analysis of all Variables in the Data Frame
out

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

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

Generic Method for t-test and Standardized Mean Difference from Summary Statistics
color.show

Display Named R Colors and rgb Values
smd.t.test

Generic Method for t-test and Standardized Mean Difference with Enhanced Graphics
prob.norm

Compute and Plot Normal Curve Probabilities over an Interval
color.boxplot

Color Boxplot