Understanding Logistics regression

The basis Logistics or Logit regression. It’s a regression model where the dependent variable (DV) is categorical. Outcome follows a Bernoulli distribution. Success = 1 , failure = 0. Natural logarithm of odds ratio ln (p/1-p)… logit(p). Inverse log curve gives a nice “s” curve to work with. Equate logarithm of odds ratio with regression line equation. Solve for probability … Read more

Linear regression example

I was looking for a simple example of a regression and how to calculate it by hand. I found this one: least squares example. the main formula to calculate the linear regression is   y = Ḇo + Ḇ1xcontinue learning the basis !


Serverless is a buzzword It points to the future of software development in a post cloud world. The idea of “Serverless” is NOT about removing the servers completely (or you couldn’t use the internet at all), but essentially paying for services that mean that someone else manages the servers for you thereby reducing maintenance load. It’s … Read more

Kepner Tregoe Method

The Kepner Tregoe Method, also known as the KT-method, developed by Charles Kepner and Benjamin Tregoe. When we should use it? The Kepner Tregoe method is a problem analysis model which fits well when the “problem” is disconnected from the “decision”. The Kepner-Tregoe Matrix comprises 4 steps: How to use it


The event, This Christmas I went to a friend’s home, they had Alexa at home. At one point I was curious about how it worked and what type of things you can ask Alexa. Play music, ask about weather, add products to the shopping cart, define an alarm to get up… What stunned me the … Read more

Change behaviors

This is a list of changes I have done and I should do. I DECREASED OR STOPPED USING Facebook (once a week only). LinkedIn (once a day only). Twitter (once a day only) Television (since 2012). Sugar (no sugar at home since 2016) Limited the fried food (since 2007) Smartphones during meals (removed since October … Read more

Guru99, python and more

There are so many tutorials about almost everything, this time I found this one: https://www.guru99.com Guru99 Vision: Fun & Free Education for ALL Guru99 Mission: To bring all feasible courses , online. Python was the one who took the first look, but I went quickly to other tutorials. I am inmersed now on a SAP HCM project, so … Read more

Volume Price Confirmation Indicator (VPCI)

I have been looking for volume indicators that help me to identify the right minimum volumes to place long position, but by the moment I was not success. This time I found this VPCI in tradingview, so let’s see how it works. The notes are very interesting basis of knowledge. Volume Price Confirmation Indicator (VPCI) … Read more

Etherium ecosystem

Simon Wardley says related to maps: practice, practice, practice… so here there is a practice. The map Development environment Solidity: is quite mature and the community of developers is increasing, there are so many places where you can learn how to develop in solidity, and the documentation is quite good. There are other languages but … Read more