This video covers how to run SQL queries using the 'sqldf' package within R. This sqldf tutorial was part of a Keystone Solutions podcast discussion about data science and what skills beginning analysts should be learning to improve their skill … [Continue reading]
Adding a ‘Back to Top’ link to your WordPress blog
November 21, 2012 2 Comments
In a previous post, I discussed how to remove "Powered By WordPress" from the footer of the Scrappy theme. You might also want to add a "Back to Top" link in the footer, especially if your blog has a lot of vertical distance from the top to the … [Continue reading]
Video: Overlay Histogram in R (normal, density, another series)
November 9, 2012 2 Comments
This video explains how to overlay histogram plots in R for 3 common cases: overlaying a histogram with a normal curve, overlaying a histogram with a density curve, and overlaying a histogram with a second data series plotted on a secondary … [Continue reading]
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