Publications by Murtaza Haider
Summarize statistics by Groups in R & R Commander
R is great at accomplishing complex tasks. Doing simple things with R though takes some effort. Consider the simple task of producing summary statistics for continuous variables over some factor variables. Using Stata, I’d write a brief one-liner to get the mean for one or more variables using another variable as a factor. For instance, tabstat...
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R: What to do when help doesn’t arrive
R is great when it works. Not so much, when it doesn’t. Specifically, this becomes a concern when the packages are not fully illustrated in the accompanied help documentation, and the author/s of the package don’t respond (in time).I am not suggesting that the package authors should respond to every email that they receive. My request is that...
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Stata embraces Bayesian statistics
Stata 14 has just been released. The new and big thing with version 14 is the introduction of Bayesian Statistics. A wide variety of new models can now be estimated with Stata by combining 10 likelihood models, 18 prior distributions, different types of outcomes, and multiple equation models. Stata has also made available a 255-page reference man...
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Are Canadian newspapers painting false pictures with data?
The Canadian newspaper, Globe and Mail, is a leader in diction and style, but it may need improvement in the ‘grammar of graphics’.Globe’s recent depiction of metropolitan economic growth in the series Off the Charts was way off the mark. The chart plotted the current and forecasted GDP growth rates for select cities in Canada. The red-colo...
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Curious about big data in Montreal?
Are you in Montreal and curious about big data? Well here is your chance to attend a session about the same at Concordia University on Tuesday, Nov. 03 at 6:00 pm.www.BigDataUniversity.com, which is an IBM-led initiative is running meetups across North America to create awareness about, and training in, big data analytics.BigDataUniversity runs M...
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Not so sweet sixteen!
In the world of big data and real-time analytics, Microsoft users are still living with the constraints of the bygone days of little data and basic numeracy.If you happen to use Microsoft Excel for running Regressions, you will soon realize your limits: The Windows version of Excel 2013 permits no more than 16 explanatory variables.Excel has ma...
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Not so sweet sixteen!
In the world of big data and real-time analytics, Microsoft users are still living with the constraints of the bygone days of little data and basic numeracy.If you happen to use Microsoft Excel for running Regressions, you will soon realize your limits: The Windows version of Excel 2013 permits no more than 16 explanatory variables.Excel has ma...
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Getting Started with Data Science: Storytelling with Data
Earlier this month, IBM Press and Pearson have published my book titled: Getting Started with Data Science: Making Sense of Data with Analytics. You can download sample pages, including a complete chapter. There are 104 pages in the sample. You can also watch a brief interview about the book recorded earlier at the IBM Insight2015 Conference.The ...
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Getting Started with Data Science: Storytelling with Data
Earlier this month, IBM Press and Pearson have published my book titled: Getting Started with Data Science: Making Sense of Data with Analytics. You can download sample pages, including a complete chapter. There are 104 pages in the sample. You can also watch a brief interview about the book recorded earlier at the IBM Insight2015 Conference.The ...
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Data Science Boot Camp
If you live in or near Toronto, are interested in learning about data science, and can spare Friday afternoons, then you are in luck. I am offering a Data Science Boot Camp at Ryerson University in collaboration with IBM’s BigDataUniversity.com. The Boot Camp is largely based on the contents of my recently published book, Getting Started with ...
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