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Kelly Black

Kelly Black is a faculty member in the Department of Mathematics at Clarkson University. His background is in numerical analysis with a focus on the use of spectral methods and stochastic differential equations. He makes extensive use of R in the analysis of the results of Monte-Carlo simulations.
In addition to using R for his research interests, Kelly also uses the R environment for his statistics classes. He has extensive experience sharing his experiences with R in the classroom. The use of R to explore datasets is an important part of the curriculum.

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DDaudalagidhas quoted11 days ago
The <- operator for the assignment will work in any context while the = operator only works for complete expressions. Another option is to use the <<- operator. The advantage of the <<- operator is that it instructs the R environment to search parent environments to see whether the variable already exists.
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    DDaudalagidhas quoted11 days ago
    In some contexts, within a function for example, the <- operator will create a new variable; however, the <<- operator will make use of an existing variable outside of the function if it is found.
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      DDaudalagidhas quoted11 days ago
      Here, we briefly list some of the built-in data types that describe discrete data. The four data types discussed are the integer, logical, character, and factor data types.
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