In this project, I built a simple system where we can play a tune/music through a speaker (sound/tone is of our choice) and while it’s playing, we can control the tempo in real time. For the speaker, I used an inexpensive passive buzzer hooked up to a 10K resistance potentiometer. I insert a turning knob […]
Category: Education
Degrees, Diplomas, Certs, and more…
Every now and then I’m asked: “What certifications do you have?”…and honestly, I often forget to list all of them and since I’m a voracious learner, the list keeps on growing and growing. At any rate, I finally decided to catalog them (most of them, admittedly not all) and create a less-boring list (visual!) for […]
Raw Data to Machine Learning to Decision-Tree: Excel
Machine Learning in Excel? Isn’t ML the new thing, new algorithm that’s only done in the Cloud using R and Python? Nope! We’ve been doing in Excel for many years!! It’s only recently getting a lot of attention with Cloud and large datasets and made much, much simpler to use for today’s Data Scientists— but […]
Did your promotion work?
In an earlier blog How Well Are Your Incentives Working? I shared methods on how to calculate the various chances of success based on some campaign data (e.g. new sign-ups for membership) from various trials using Binomial distribution. In this post, I show how to determine if events occurred due to random chance or affected […]
Estimating reading time for any content (Python)
We occasionally see reading time estimates in online news, blog sites, and even in promotional contents. This estimate is important because it tells the reader upfront how much the content may take to read. There are several extensive studies done internationally (in English speaking countries) that demonstrate that people tend to read messages/contents up to […]
User Stories and Wireframes
User stories or scenarios are the suggested and preferred way for most agile development teams to capture software features in bite-sized morsels. It helps to continuously focus on the feature from end-user perspective (targets user-experience, persona) and the situation (i.e. the need for that feature) and expected behavior (i.e. what the user is trying to […]
Analyses of Critical Words & Speeches!
In one of my earlier blogs, I shared the techniques and code to create Word Cloud using Python and Excel together in this article: Word Cloud III – Python & Excel Together Today, building on that, I’ll analyze some of the most historic speeches and/or documents that every kid should read and even memorize part […]
vCards to/from CSV/Excel (and more)
vCards. What are they? Here’s a blurb from wikipedia:vCard, also known as VCF, is a file format standard for electronic business cards. vCards are often attached to e-mail messages but can be exchanged in other ways, such as Multimedia Messaging Service, on the World Wide Web, instant messaging or through QR code. They can contain […]
Using Directions & Travel APIs With Excel, Python. 2/2
This is the second part of the getting directions and travel info using Bing Maps. The first part shows how to do it in Python (check it out here), and in this part, I’ll share some tips on how to get the same info from within Excel without writing any VBA code! To get the […]
Using Directions & Travel APIs with Excel, Python. 1/2
In this blog, I’ll share tips on how to consume RESTful APIs for maps. Specifically, getting a location point info, getting distance and travel times between two points, and even turn-by-turn driving directions. With the techniques, we can also get walking and transit mode of travel info. I’ll be leveraging Bing Maps APIs as they’re […]