To master R programming, you need to master: General R programming concepts Environments and scoping Non-standard evaluation (quote, substitute, eval) Functionals, specifically lapply family of functions Closures and associated use cases Higher order functions like Map and Reduce R's object oriented systems (S3, S4) Processing strings and regex Date and timestamp manipulation Understanding the merits … Continue reading How do I become an expert in R?
The term “data scientist” evokes images of a single genius working alone, applying esoteric formulas to vast amounts of data in search of useful insights. But this is only one step of a process. Data analysis is not a goal in itself; the goal is to enable the business to make better decisions. Data scientists … Continue reading The Seven Key Steps of Data Analysis
I've always wondered about the Exponential function and natural Logarithm, and would really like to gain a more intutive sense on why and how it was discovered. Here is a lovely article I found: http://betterexplained.com/articles/an-intuitive-guide-to-exponential-functions-e/