David Diez

David Diez

5 packages on CRAN

OIsurv

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Supplemental functions and data for the OpenIntro guide to the survival package in R.

openintro

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Supplemental functions and data for 'OpenIntro' resources, which includes open-source textbooks and resources for introductory statistics at <http://www.openintro.org>. The package contains data sets used in our open-source textbooks along with custom plotting functions for reproducing book figures. Note that many functions and examples include color transparency; some plotting elements may not show up properly (or at all) when run in some versions of Windows operating system.

pesticides

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Single item and composite pesticide residue measurements of fifteen commodity-pesticide combinations plus analytical tools.

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Download stock data, build single index, constant correlation, and multigroup models, and estimate optimal stock portfolios. Plotting functions for the portfolio possibilities curve and portfolio cloud are included. A function to test a portfolio on a data set is also provided.

OIdata

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A collection of data sets from several sources that may be useful for teaching, practice, or other purposes. Functions have also been included to assist in the retrieval of table data from websites or in visualizing sample data.