Support for Statistics Classes at Northland College

ABCens90 | Data on Ashland and Bayfield County (WI) residents in 1990. |

ABDLakes | Data for lakes in Ashland, Bayfield, and Douglas counties,... |

accuracyPrecision | Plot targets and histograms for illustrating accuracy and... |

addMargins | Puts Arbitrary Margins on Two-way Tables or Arrays |

addSigLetters | Places significance letters next to mean points on a fitPlot. |

adTest | Anderson-Darling test for normality |

chisqPostHoc | Tests for significant differences among all pairs of... |

ciSim | A dynamic graph to illustrate the concept of confidence... |

ci.t | Constructs confidence intervals assuming normal distribution. |

cltSim | A dynamic graph to illustrate the Central Limit Theorem. |

corr | Compute correlation coefficients. |

corrSim | Dynamic simulations to demonstrate how the correlation is... |

distrib | Plots calculated areas or values from a wide variety of... |

expandTable | Converts results in a contingency table into the original raw... |

Frogs | Numbers of frogs on lakes as determined by call and visual... |

glhtSig | Extracts names for significantly different comparisons. |

gofCI | Pseudo- confidence intervals for multinomial levels. |

highlight | Labels a list of points on a two-dimensional plot. |

identify.formula | Identify points in a plot using a formula. |

iqrCalc | Shows the steps in the manual calculation of the median and... |

knitUtil | Specific utilities for use in a knitr document. |

levenesTest | Perform Levene's test for homogeneity of variances |

meanMedian | Dynamic simulations to demonstrate how the mean and median... |

mrnorm | Multiple Simulations from Normal Distributions |

NCStats | Support for statistics classes at Northland College. |

NCStats-internals | Internal functions used in NCStats. |

outlierTest | Performs a test for outliers |

percTable | Express table entries as percentage of marginal table. |

plot.htest | Plots test statistic and p-value area for z-, t-, and... |

powerSim | Dynamic simulation of power calculation in 1-sample mean... |

predictionPlot | Shows the predicted value and interval on a fitted line plot. |

print.glht | Modificaton of print.summary.glht() and print.confint.glth()... |

print.htest | Modificaton of print.htest() to streamline output. |

print.lm | Modificaton of print.lm() to streamline output |

print.summary.lm | Modificaton of print.summary.lm() to streamline output |

sdCalc | Shows the steps in the manual calculation of the standard... |

simDistrib | Demonstrates the shape of the PDF and CDF for the given... |

SquareLakePopn | Biological characteristics of the "Square Lake" population. |

srsdf | Extract a simple random sample from a data.frame. |

transChooser | A dynamic graphic used to select transformations for simple... |

view | Shows a random selection of rows from a data frame or matrix. |

z.test | Z test for known population standard deviation |

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