A beautiful role playing game is Eve Online available at http://www.eve-online.com/. Its like a Star Wars fantasy game and the graphics are mind blowing . The downside- its so addictive that you are forewarned.
Also it employs economists who monitor the interactions of the thousands of people and millions of online interactions and take steps to ensure balance and fair play. Thus a useful simulation of people without the diruptive pain of the real world.
Here is an excellent presentation on R vs SPSS vs SAS. Its favorablein analysis towards R, but still a very informative piece.
The original link is from –http://www.matthewckeller.com/Lecture1.ppt
Here are a few snapshots for comparing multiple packages-
Other Comparisons with Base SAS (a SAS Institute Copyrighted Product ) can be found at http://www.ats.ucla.edu/stat/technicalreports/
or by searching packages at http://finzi.psych.upenn.edu/search.html
Using the new PhPBB 3.0 version for creating forums was a pleasant surprise.
The Decision Stats test forum is here https://decisionstats.com/forum/ .
I liked this forum (besides being open source /free over V Bulletin). Have a look .
Linked In maths says that out of 10.008 million professionals now connected with me (thanks to my 3023 connections), most of them 9.358951million professionals came in my network since June 28 th. Today is June 30 th. I am thus adding 4.6 million professionals /day (or there is something wrong with this 🙂 )
-I am about to join myspace.com who needs this traffic to catch up with facebook.com…..
but only if they pay me .
And what would you call a movie thats part loveable Marvel hero,part James Bond humor and part brilliant casting coups. As for this year, uptil now you can call it Iron Man. While The Dark Knight, or even the soon awaited Will Smith ….starring Hancock may soon be the top grossing comic super hero based movie grosser,
this one tugs at your heart,the corner of your lips and your eyes.
Yeah Baby!
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Iron man stars a billionaire playboy ,sardonic,sometimes comically ironic , and reformed arms dealer Tony Stark …………played ironically by a reformed and still twinkling eyed Robert Downey Jr).Stark after a series of unfortunate events in Afghan caves decides brilliant minds ,and corporate money can be better put to use than corporate wars and weapons design.
Yes small and subtle war messages even in mainstream movies nowadays, but the chemistry between the Stark and Miss Potts (played by a still so lovely, and where have you been Mrs Coldplay……Gwenyth Paltrow) is remarkable.. and so are the movie effects, The computer generated imagery is so good .. it seems as if not generated by computers.
Watch it with your family, kids, your love, or with your college mates. This is Hollywood at it’s entertaining best !!!
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Do your eyes glaze over when ever you hear the words simulation ? Simulation refers to trying to predict actual events , usually in a controlled atmosphere. Monte Carlo simulation is a type of simulation that draws on repeated random sampling to hit the result, and it is usually computed using computers (unless you are Enrico Fermi who did it in 1942.)
The classical definition as per the most peer reviewed online statistical journal (called www.wikipedia.org )
“the term describes a large and widely-used class of approaches. However, these approaches tend to follow a particular pattern:
and ”
Monte Carlo simulation methods are especially useful in studying systems with a large number of coupled degrees of freedom, such as liquids, disordered materials, strongly coupled solids, and cellular structures (see cellular Potts model). More broadly, Monte Carlo methods are useful for modeling phenomena with significant uncertainty in inputs, such as the calculation of risk in business (for its use in the insurance industry, see stochastic modelling). A classic use is for the evaluation of definite integrals, particularly multidimensional integrals with complicated boundary conditions.
Monte Carlo methods in finance are often used to calculate the value of companies, to evaluate investments in projects at corporate level or to evaluate financial derivatives. The Monte Carlo method is intended for financial analysts who want to construct stochastic or probabilistic financial models as opposed to the traditional static and deterministic models.”
Here is a very good example of using the simulation to calculate distribution of leads to a website and the resultant conversion rate and probabilities. The down loadable excel sheet is great for learning both this class of simulation as well , maybe adding more robust mathematics in your online estimation efforts. The site is also great for excel related stuff.
http://www.vertex42.com/ExcelArticles/mc/SalesForecast.html
Use it if you think estimating Online Profitabilty is more complex than :
conversion ratio *number of leads *profit per conversion-number of leads*cost per lead.
http://www.time.com/time/cartoonsoftheweek/
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Thanks for reading this stuff . Enjoy the change !
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DECISION STATS 