**R** is an extremely useful software environment for statistical computing and graphics. But as awesome as it is, it can be quite daunting to find just the right package for a specific task. Well, CRAN Task Views is designed to help alleviate this challenge. The table below is matches the task (right) with the package (left). While a bit primitive, it as quick reference it does work.

**F**or those that are must more industrious, check out “Visualizing the CRAN: Graphing Package Dependencies.” The authors uses graph visualize the relationship between packages in CRAN. His analysis shows that MASS is the most “depended on” package on the CRAN. A total of 294 of the 3794 packages (almost 8%) in the CRAN depend on MASS. An additional 95 suggest MASS; so just over 10% of all R packages either suggest or depend on MASS.

Bayesian | Bayesian Inference |

ChemPhys | Chemometrics and Computational Physics |

ClinicalTrials | Clinical Trial Design, Monitoring, and Analysis |

Cluster | Cluster Analysis & Finite Mixture Models |

DifferentialEquations | Differential Equations |

Distributions | Probability Distributions |

Econometrics | Computational Econometrics |

Environmetrics | Analysis of Ecological and Environmental Data |

ExperimentalDesign | Design of Experiments (DoE) & Analysis of Experimental Data |

Finance | Empirical Finance |

Genetics | Statistical Genetics |

Graphics | Graphic Displays & Dynamic Graphics & Graphic Devices & Visualization |

HighPerformanceComputing | High-Performance and Parallel Computing with R |

MachineLearning | Machine Learning & Statistical Learning |

MedicalImaging | Medical Image Analysis |

MetaAnalysis | Meta-Analysis |

Multivariate | Multivariate Statistics |

NaturalLanguageProcessing | Natural Language Processing |

OfficialStatistics | Official Statistics & Survey Methodology |

Optimization | Optimization and Mathematical Programming |

Pharmacokinetics | Analysis of Pharmacokinetic Data |

Phylogenetics | Phylogenetics, Especially Comparative Methods |

Psychometrics | Psychometric Models and Methods |

ReproducibleResearch | Reproducible Research |

Robust | Robust Statistical Methods |

SocialSciences | Statistics for the Social Sciences |

Spatial | Analysis of Spatial Data |

SpatioTemporal | Handling and Analyzing Spatio-Temporal Data |

Survival | Survival Analysis |

TimeSeries | Time Series Analysis |

gR | gRaphical Models in R |

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