1286 search results for "Excel"

Playing Around With R

August 14, 2011
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Playing Around With R

okay so today we will start playing around with R and will use GDP as our ginny pig.okay so first do the following:1. DOWNLOAD R2. Create a folder and call it "R" on your desktop.  Then type ingetwd()this will produce the current place where R fin...

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GDAT 2011 in Review

August 13, 2011
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GDAT 2011 in Review

As usual, the Guerrilla Data Analysis Techniques (GDAT) class was a total blast. Motivated students always guarantee that. It would really help our scheduling, however, if people didn't wait until the last nanosecond to register for the class. But give...

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Musings on Correlation (or yet another reason I fear for those non-methodologically inclined students in my cohort)

August 12, 2011
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Musings on Correlation (or yet another reason I fear for those non-methodologically inclined students in my cohort)

I’ve been thinking a lot about what it means for two variables to be correlated.  Scientists throw around the term like it’s uniformly understood, but I fear that an understanding of the concept is elusive to substantive researchers who aren’t interested in empirical methods, except as a means by which we can demonstrate that our

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System Failure-Maybe it Will Help

August 11, 2011
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System Failure-Maybe it Will Help

I hope everyone is enjoying the market.  After a crazy week personally and 6% intraday swings, I remember why I abandoned day trading. I often wonder if I should share ideas that do not work as well as I would like.  In this case, I know I ha...

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FastCompany on telling stories with data

August 11, 2011
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An article in FastCompany today profiles two websites that excel in telling engaging stories with data: the FlowingData and OkTrends blogs. Both sites often use R for data analysis and data visualization, and have been featured here on this blog. FlowingData regularly posts guides on how to use R to recreate many of its featured visualizations with bubble charts,...

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Using a “pure infographic” to explore differences between information visualization and statistical graphics

August 10, 2011
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Using a “pure infographic” to explore differences between information visualization and statistical graphics

Our discussion on data visualization continues. One one side are three statisticians–Antony Unwin, Kaiser Fung, and myself. We have been writing about the different goals served by information visualization and statistical graphics. On the other side are graphics experts (sorry for the imprecision, I don’t know exactly what these people do in their day jobs The post Using...

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Amazon Machine Image Created With RTextTools Pre-installed

We recently created an AMI for Amazon's EC2 cloud computing service. Users with AWS accounts can access the public AMI by searching ami-817eb8e8. The AMI is based off of Drew Conway's excellent AMI, but with R 2.13 loaded and RTextTools and

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How ANZ uses R for credit risk analysis

August 8, 2011
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How ANZ uses R for credit risk analysis

At last month's R user group meeting in Melbourne, the theme was "Experiences with using SAS and R in insurance and banking". There, Hong Ooi from ANZ (Australia and New Zealand Banking Group) gave a presentation on "Experiences with using R in credit risk". I didn't get to see the presentation myself, but the slides tell a great story...

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FII and DII turnover with effect on Nifty Downloader

August 8, 2011
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FII and DII turnover with effect on Nifty Downloader

My thirst for statistics has been increasing. IV had another requirement, which would eventually be useful to me as well. He currently downloads FII and DII buy and sell values and its impact on Nifty manually in Excel. He suggested me to try and autom...

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Usability

August 7, 2011
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Usability. I am not an expert in Human-Computer Interaction (HCI) at all. Worse, I make the crappiest looking interfaces, typically. So, that's said. Usability. Wikipedia writes that "sability is the ease of use and learnability of a ...

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