As a fish and shrimp keeper on different tanks with different creatures requiring different water parameters and conditions, it does me good to keep track of all those especially when replacing or changing water, or adjusting parameters for optimal suitability of the creatures. For example, for the shrimp tank, keeping track of KH, GH are […]
Category: STEM
Projecting Neocaridina Shrimp Population
Two months ago I wrote an app for myself to keep track of my new hobby Neocaridina Shrimpkeeping. It was only 2 weeks before that I started the hobby before I recognized that a handy application to keep track of my shrimp’s water parameters, treatments and care with curated, accurate information would be very useful. […]
The amazing UNDO
Sure, computers are powerful tools that allow us to create, edit, and share various types of content. However, it can also be a source of frustrations and even horror especially when we lose our work or made a mistake that ruins the creation. We may make mistakes or change our minds about what we want […]
All About NFL’s Top Heach Coaches
I dug some information on some of the 32 head coaches in NFL today, and did some analayses. I was intrigued by their performance, compensation, their roots, their network and influence, correlations among various parameters like age, experience, wins, and salary. I also looked at how many teams they’ve coached in the past, and how […]
Some of my color palettes
Here is a small sample of my favorite color palettes, most are created by me from my paintings and photographs, and a few are customized manually by me based off other palettes. These can be used for paintings, web page themes, interior decoration and house painting, etc. Do you have a favorite?
Republican Candidates’ Primaries Spend 2024
The campaign trails are blazing for the upcoming elections and the Republican party still needs to narrow their final nominee down to one in the coming months. Niki Haley and Donald Trump are the only two remaining runners (written: Jan 25, 2024). Below are some charts I created to show how much they’ve spent on […]
How to chart ranges in Excel
Let’s say you have some actual measurements of some parameter over time or a series, and you’re measuring it to see if it falls within the “safe” or “ideal” range. How can you create a visualization to show both the measurements and the safe/idea range values effectively? That’s what I’m going to answer in this […]
Calculating Euclidean Distance in Python
Euclidean distance is the length of the line segment between two points in Euclidean space. It can be calculated from the Cartesian coordinates of the points using the Pythagorean theorem. It is a simple formula enough to be calculated by hand but powerful enough to be used in Machine Learning and Artificial Intelligence applications for […]
How to create visualizations in Excel given nested scores
Here’s the scenario:We have two players named Eve and Inna in a game competition (say, Tennis). They play 5 matches against each other, and each match is composed of 3 games called Sets.We have data on scores of the players set by set for all 5 matches.So, the question is: How do we present this […]
Interactive Reports – State Facts
Here’s an interactive data visualization of some key stats about each state (and DC) such as: state capital, size in square miles, largest city (by population), state population, year of statehood, population density (taking into account land size), population change in percentage over the years, highest peak in state and median household income. Population change […]