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Publication Name: Three-Toes Sloth

Brief description: Slow Takes from the Canopy (My Very Own Internet Tradition)

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Joined: August 20th, 2011

Activity

Three-Toed Sloth wrote a new blog post titled Rainfall, Data Structures, Sequences (Introduction to Statistical Computing)

In which we practice working with data frames, grapple with some of the subtleties of R's system of data types, and think about how to make sequences. (Hidden agendas: data cleaning; practice using R Markdown; practice reading R help files) Assignment, due at 11:59 pm on Thursday, 4 September 2014 Introduction to Statistical Computing
(1064 days ago)

Three-Toed Sloth wrote a new blog post titled Lab: Exponentially More Fun (Introduction to Statistical Computing)

In which we play around with basic data structures and convince ourself that the laws of probability are, in fact, right. (Or perhaps that R's random number generator is pretty good.) Also, we learn to use R Markdown. — Getting everyone randomly matched for pair programming with a deck of cards worked pretty well. It would have worked better if the university's IT office hadn't broken R on the lab computers. Lab (and its R Markdown source) Introduction to Statistical Computing
(1064 days ago)

Three-Toed Sloth wrote a new blog post titled Bigger Data Structures (Introduction to Statistical Computing)

Matrices as a special type of array; functions for matrix arithmetic and algebra: multiplication, transpose, determinant, inversion, solving linear systems. Using names to make calculations clearer and safer: resource-allocation mini-example. Lists for combining multiple types of values; access sub-lists, individual elements; ways of adding and removing parts of lists. Lists as key-value pairs. Data frames: the data structure for classic tabular data, one column per variable, one row per...
(1064 days ago)