DtrellHist
(Package: tigerstats) :
Dynamic Trellising (Histogram)
A manipulative app that facilitates exploration of the distribution of a single numerical variable, conditoned upon the values of either a numerical variable or a factor.
● Data Source:
CranContrib
● Keywords:
● Alias: DtrellHist
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predict.polyGC
(Package: tigerstats) :
Prediction Function for GC Polynomial Regression
Used by generic predict function
● Data Source:
CranContrib
● Keywords:
● Alias: predict.polyGC
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CIMean
(Package: tigerstats) :
Confidence Intervals (for one population mean)
An app to investigate how sample size and confidence level affect the width of a confidence interval. A sample is drawn from the input population and a confidence interval for the population mean is calculated. The kernel density plot for the population and the histogram for each new sample are plotted, along with the confidence interval. Summary information is output to the console to tally the number of times the computed confidence interval covers the true population mean and how many times it misses. There is an option to draw 100 or 1000 samples at a time.
● Data Source:
CranContrib
● Keywords:
● Alias: CIMean
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chisqtestGC
(Package: tigerstats) :
Chi-Square Test (GC version)
Perform chi-square test, either goodness of fit or test for association. Enter either formula-data input or a summary table. Simulation is optional.
● Data Source:
CranContrib
● Keywords:
● Alias: chisqtestGC
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Utility print function
● Data Source:
CranContrib
● Keywords: internal
● Alias: print.GCttest
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plot.polyGC
(Package: tigerstats) :
Diagnostic Plots for GC Polynomial Regression
Used by generic plot function
● Data Source:
CranContrib
● Keywords:
● Alias: plot.polyGC
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BinomSkew
(Package: tigerstats) :
Skewness in the Binomial Family of Distributions
An app to investigate how skewness in a binomial distribtution vanishes when np is large enough. Sample size is set at n = 50, but the user can vary p with a slider.
● Data Source:
CranContrib
● Keywords:
● Alias: BinomSkew
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CIProp
(Package: tigerstats) :
Confidence Intervals (for one population proportion)
An app to investigate how many times a confidence interval for one population proportion captures the true population parameter. The true population proportion is plotted as a vertical red line and the user can visually see how changes to the sample, population proportion, sample size, and confidence level affect the width of the confidence interval. Summary information is output to the console to tally the number of times the computed confidence interval covers the true population mean and how many times it misses.
● Data Source:
CranContrib
● Keywords:
● Alias: CIProp
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RegEstimate
(Package: tigerstats) :
Estimation of Regression Coefficients
An app to explore estimation of coefficients in simple regression.
● Data Source:
CranContrib
● Keywords:
● Alias: RegEstimate
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SampDist2Props
(Package: tigerstats) :
Difference of Two Sample Proportions
An app to explore the sampling distribution of the difference of two sample proportions.
● Data Source:
CranContrib
● Keywords:
● Alias: SampDist2Props
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