dataCars93

datasets

Each function accomplishes the work of several or more standard R functions. For example, two function calls, Read() and CountAll(), read the data and generate summary statistics for all variables in the data frame, plus histograms and bar charts as appropriate.  Other functions provide for descriptive statistics, a comprehensive regression analysis, analysis of variance and t-test, plotting including the introduced here Violin/Box/Scatter plot for a numerical variable, bar chart, histogram, box plot, density curves, calibrated power curve, reading multiple data formats with the same function call, variable labels, color themes, Trellis graphics and a built-in help system. Also includes a confirmatory factor analysis of multiple indicator measurement models, pedagogical routines for data simulation such as for the Central Limit Theorem, and generation of R markdown instructions for interpretative output.

David W Gerbing

lessR

Less Code, More Results

dataCars93 function

<p>A data table with 93 observations and 25 variables.</p>
<p>Variables
-------------------------------------------
Make: Model
Type: Small, Sporty, Compact, Midsize, Large
MinPrice: Minimum Price (in $1,000) - Price for basic version of this model
MidPrice: Midrange Price (in $1,000) - Average of Min and Max prices
MaxPrice: Maximum Price (in $1,000) - Price for a premium version
MPGcity: City MPG
MPGhiway: Highway MPG
Airbags: 0 = none, 1 = driver only, 2 = driver &amp; passenger
DriveTrain: 0 = rear wheel drive, 1 = front wheel drive, 2 = all wheel drive
Cylinders: Number of cylinders
Engine: Engine size (liters)
HP: maximum Horsepower
RPM: revolutions per minute at maximum horsepower
RevMile: Engine revolutions per mile in highest gear
Manual: Manual transmission available, 0 = No, 1 = Yes
FuelCap: Fuel tank capacity (gallons)
PassCap: Passenger capacity (persons)
Length: Length (inches)
Wheelbase: Wheelbase (inches)
Width: Width (inches)
Uturn: U-turn space (feet)
RearSeat: Rear seat room (inches)
LugCap: Luggage capacity (cu. ft.)
Weight: Weight (pounds)
Source: 0=non-USA manufacturer, 1=USA manufacturer</p>

dataCars93: Data: Cars93

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