dx/dt Posts

Not into watching sports that much but my daughter, that’s a completely different story especially when it comes to basketball (and why not…the best team in the whole world is…

06/06/2015 / / Codes

No, not that kind. I am talking about what comes into R when you import time-series data with a goal to calculate Internal Rate of Return or IRR for a series…

04/25/2015 / / Codes

F-statistic, reported as part of a standard multivariate regression output, is the ratio of two mean squares; Regression Mean Square (MSR) and the Error or the Residual Mean Square (MSE). What…

03/14/2015 / / Codes

3 most important things when buying real-estate…location, location, location…those 3 things when applied to investing in the capital markets…diversify, diversify & then diversify… A slight detour from the usual set…

02/07/2015 / / Data Science

Companies are usually reluctant spending resources on marketing and promotional activities because the ROI on such investments is not readily calculable but hey, you work for a start-up and you…

01/17/2015 / / Data Science
12/20/2014 / / Data Science

Okay, you did great coming up with a functioning model to estimate the market demand for a particular commodity but how do you know that the predictive accuracy of that model…