tag:blogger.com,1999:blog-49572428643152540812026-03-04T17:09:03.683-03:00M. Barros (in English)Forecasting, Data Analysis and Statistics. Lecture Notes on Probability and Statistics.Unknownnoreply@blogger.comBlogger44125tag:blogger.com,1999:blog-4957242864315254081.post-72354144689891123702016-07-06T16:00:00.000-03:002016-07-06T16:07:25.496-03:00Very nice time series tutorialAnalyticsvidhya is a site which contains a lot of interesting material on Data Science and Analytics.
They recently published a time series tutorial, whose link is enclosed.
http://www.analyticsvidhya.com/blog/2015/12/complete-tutorial-time-series-modeling/Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-88045290645631853472013-07-02T15:42:00.000-03:002013-07-02T15:42:27.157-03:00StatAce - R via web browser Still in beta, but the interface is very nice and it looks promising.
You need to register (at www.statace.com) to be able to read and save files.
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-32261991834670579782012-12-23T17:44:00.001-02:002012-12-23T17:45:15.261-02:00Data Mining and Predictive Analytics: 6 Reasons You Hired the Wrong Data Miner
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-62437796756112616572012-12-13T13:16:00.000-02:002012-12-13T13:16:45.435-02:00A Compilation on Time Series and Stochastic Processes geared towards Quantitative FinanceBeware - this is NOT an original piece of work!
I just prepared a compilation from Wikipedia articles and repackaged it into a pdf file. I will later try to repackage it into Kindle format using Caliber. I couldn´t get to upload it to my own site, so I am sending it to Slideshare so you can download it.
It amounts to a LARGE file, almost 200 pages long, so think before you print...
The idea Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-85659631346368031212012-12-13T02:29:00.001-02:002012-12-13T02:29:58.213-02:00The Economist Charts - Economic Opportunity for women (by country)Economic opportunity for women: Where to be female | The Economist
The results are not surprising at all. I am, however, quite disappointed with Brazil's ranking. It seems that having a female president had a non significant effect on the opportunities for women so far. But, let's be realistic - cultural changes don't happen easily or quickly most of the times.
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-68512876343838309492012-12-13T02:02:00.001-02:002012-12-13T02:38:23.141-02:00The Brave New World of BIOne of many interesting articles on the
subject. My guess is BI will be THE subject for the years to come and reshape business and academia.
The Brave New World of Business Intelligence http://t.co/VMDwJwhQ http://twitter.com/BI_Newswire/status/279037178443608064
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-11229278870874624522012-12-12T13:55:00.000-02:002012-12-12T13:55:00.412-02:00Free online courses in stat and data mining - Coursera
I discovered by chance a website that I thought was absolutely wonderful, with sensational and free courses taught by professors from major universities (so far I only noticed universities in the USA).
It looks so good that I signed up for three courses. Now I have no excuses not to learn R.
The link to the homepage is: https://www.coursera.org/courses
I was looking for courses related Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-29293222477370453972012-12-10T19:22:00.000-02:002012-12-10T19:24:19.481-02:00Presentation - International Symposium on Forecasting 2012
This is my presentation at ISF 2012. The purpose is to forecast the electricity spot price in Brazil through a hybrid neuro-fuzzy/neural network model.
The presentation can also be downloaded from my site at:
http://www.mbarros.com/en/area.aspx?id=6
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-81691565804036141772012-12-10T18:28:00.001-02:002012-12-10T18:28:55.936-02:00Noteworthy blogI came across this blog today and it gave me ideas to write most of today's posts. It is really worth reading if you're interested in statistics. The link is:
http://simplystatistics.org/Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-67524593856440993912012-12-10T18:21:00.000-02:002012-12-10T18:21:35.430-02:00Case study - Daily load forecastingSome preliminary analysis I did a long time ago and I believe it still is relevant.
You can download it in my main site (under "Case Studies").
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-49889802676441425282012-12-10T18:01:00.000-02:002012-12-10T18:01:28.302-02:00MOOC - an acronym for the future in teaching?
I just came across a blog post about a free statistics course (more about it later) and MOOC, which, of course, I had no idea of what it was.
Well, if you go to:
http://wp.wpi.edu/atc-ttl/2012/09/20/the-mooc-and-you/
You´ll find out MOOC stands for "Massively Open Online Courses". They are a relatively new idea, and the blog author narrows MOOCs to those that "that allow registration to Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-67690469308127313862012-12-10T14:07:00.000-02:002012-12-10T14:07:20.247-02:00R introductory course - free
I haven't checked out the entire course, but it seems very nice and the registration process is quick and without hassles (just use your FB account).
I believe it is worth a look.
http://www.codeschool.com/courses/try-r
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-55276433596517460322012-12-10T13:59:00.000-02:002012-12-10T13:59:44.740-02:00Big Data in practice - from NYTimesA very interesting article from the NY Times with a direct application of big data.
Your car insurance soon will be a direct function of very measurable and personal parameters. Basically, the insurance policy works in a "pay per mile" basis, and charges less to people who drive shorter distances.
Naturally, this can be easily extended (and will, of course) to other areas, and even other types Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-42815365420159072802012-11-12T20:44:00.000-02:002012-11-12T20:44:06.607-02:00Going Viral (sort of...) - Ecomod Conference 2007If people can download my presentations and link ton them without giving me credit, why can´t I?
So, here it goes... from ECOMOD 2007.
ECOMOD 2007 pdfView more ebooks on ebookbrowse.comUnknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-89990370837141283852012-11-04T02:01:00.000-02:002012-11-04T02:01:49.189-02:00Scilab - version 5.4.0. (new version and features)Youtube video presenting Scilab's functionalities. I haven´t tried it yet, but I think it´s definitely worth a shot, since it´s free, it is quite similar to Matlab and the number of users is growing fast.
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-55811597828491581582012-11-03T16:45:00.000-02:002012-11-03T16:45:43.370-02:00Solved Probability Exercise - Normal Distribution - Sampling Distribution, Order StatisticsUnknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-74662382175116031912012-10-14T15:28:00.001-03:002012-12-10T14:22:42.859-02:00Book - Probability and Statistics - Chapter 2 - section 2 - Conditional Probability and IndependenceUnknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-36047855415579292862012-10-10T14:31:00.001-03:002012-10-10T14:31:55.537-03:00Handle with Care - R Packages - Are they business ready? - Autobox BlogHandle with Care - R Packages - Are they business ready? - Autobox BlogUnknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-66482663269320253632012-10-10T01:05:00.004-03:002012-12-10T14:32:27.787-02:00Sampling without replacement in ExcelUnknownnoreply@blogger.com1Rio de Janeiro, Brazil-22.9035393 -43.2095869-23.3716048 -43.8413009 -22.435473799999997 -42.577872899999996tag:blogger.com,1999:blog-4957242864315254081.post-50712750178240082492012-10-09T00:27:00.001-03:002012-10-13T19:20:08.659-03:00Solved Probability Exercise - Comparison of Average CostsUnknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-45489546312543290462012-10-09T00:25:00.001-03:002012-10-13T19:20:31.645-03:00Solved Probability Exercise - Moment Generating FunctionUnknownnoreply@blogger.com0Rio de Janeiro, Brazil-22.9035393 -43.2095869-23.3716048 -43.8413009 -22.435473799999997 -42.577872899999996tag:blogger.com,1999:blog-4957242864315254081.post-48905776550780077302012-10-04T18:19:00.000-03:002012-10-13T19:21:08.091-03:00Solved Probability Exercise - Transformation of VariablesUnknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-71150758359030893902012-10-04T17:41:00.000-03:002012-10-13T19:22:26.903-03:00Book - Probability and Statistics - Chapter 2 - section 1 - IntroductionUnknownnoreply@blogger.com0tag:blogger.com,1999:blog-4957242864315254081.post-32552343534682160662012-10-03T02:26:00.001-03:002012-12-10T14:23:38.441-02:00Play time - Monty Hall Paradox - Videos and Links
Here are some links and videos about the Monty Hall paradox. I confess that the idea that switching doors was the right strategy was highly counterintuitive to me, but at least I am not alone (see the Wikipedia link).
http://en.wikipedia.org/wiki/The_monty_hall_problem
See the Wolfram simulation at: http://demonstrations.wolfram.com/MontyHallParadox/
Finally, check out these Unknownnoreply@blogger.com0Rio de Janeiro, Brazil-22.9035393 -43.2095869-23.3716048 -43.8413009 -22.435473799999997 -42.577872899999996tag:blogger.com,1999:blog-4957242864315254081.post-85887137787096492712012-01-15T22:49:00.000-02:002012-10-13T19:24:36.772-03:00Book - Probability and Statistics - Section 1.5. Descriptive Statistics - Numerical MeasuresUnknownnoreply@blogger.com0