R is a powerful and free software system for data analysis and graphics, with over 1, 200 add-on packages available. This book introduces R using SAS and SPSS terms. It demonstrates which of the add-on packages are most like SAS and SPSS and compares them to R's built-in functions.Object names in R can be any length consisting of letters, numbers, underscores a#39; a#39;_a#39;a#39; or the period a#39;a#39;. ... Case matters, so you can have two variables, one named myvar and another named MyVar in the same dataset, although ... Submitting only that character will then finish your command. If you are getting the a#39;a#39;+a#39;a#39; and cannot figure out why, you can cancel the pending command with the Escape key onanbsp;...

Title | : | R for SAS and SPSS Users |

Author | : | Robert A. Muenchen |

Publisher | : | Springer Science & Business Media - 2009-03-02 |

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