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Biography: Dan Warren

I work at the interface of evolution, ecology, and conservation biology.  I am particularly interested in how species’ ecological tolerances determine their geographic ranges, and how we may use...

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Concept Map – Random Number Generation in R

          Here’s my concept map for random number generation in R.  Apologies for the penmanship.

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Assessment for Regular Expressions

Question 1: Which of the following does not return a value of “true”? 1. ”abc” =~ /\s*$/ 2. ”abc” =~ /^\s*/ 3. “abc” =~ /^\s+/ 4. ”abc” =~ /^a+/   Question 2: Write an if statement that returns a...

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Motivation for learning to write functions in R

Motivation for learning to write functions in R Demotivation In my first year of undergrad, I took an honors course called “The Academic Habit”.  The idea was simple and fairly appealing: attend four...

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