1233 search results for "Excel"

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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Programmers Should Know R

August 6, 2011
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Programmers Should Know R

Programmers should definitely know how to use R. I don’t mean they should switch from their current language to R, but they should think of R as a handy tool during development.Again and again I find myself working with Java code like the following. td.linenos { background-color: #f0f0f0; padding-right: 10px; } span.lineno { background-color: #f0f0f0; Related posts:

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I can’t resist a word cloud: now using R!

July 28, 2011
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I can’t resist a word cloud: now using R!

The wordcloud package is word clouds for R with a difference: they look great. Of course, having just analysed online coverage of the ISMB conference, I had to run all 6 906 comments from the 2008-2011 meetings through some code. If you followed along via the Sweave code, I went as far as generating the

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The Stats Clinic

July 27, 2011
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The Stats Clinic

Here at HSL we have a lot of smart kinda-numerate people who have access to a lot of data. On a bad day, kinda-numerate includes myself, but in general I’m talking about scientists who have have done an introductory stats course, but not much else. When all you have is a t-test, suddenly everything looks

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