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Be Impressive with Mathematics
1 min
Mathematics
recreational-math

A satirical note showing how (1+1=2) can be obscured using complex identities to appear more impressive for academic reviewers.

Abdullah Al Mahmud
Apr 23, 2026

SVM vs ANN: relative power, and usage guidelines
4 min
statistics
theory
ML
algorithm

Here’s a clear comparison of SVM vs ANN, their relative power, and usage guidelines.

Abdullah Al Mahmud
Jan 5, 2026

Poisson Regression: A Simple Example
3 min
regression
statistics
poisson

Poisson regression is a statistical model for analyzing count data (e.g., number of events, calls, clicks) that occur in a fixed interval, using the Poisson distribution.

Abdullah Al Mahmud
Jan 2, 2026

Hyperspectral Imaging Explained
5 min
research
technology
imaging

Imagine your eyes (or a regular camera) see the world in only 3 colors: Red, Green, and Blue (RGB). By mixing these, you can create millions of perceived colors, but you…

Abdullah Al Mahmud
Dec 24, 2025

Understanding Mass Spectrometry Imaging
4 min
research
technology
imaging

Imagine you could take a photograph of a slice of tissue, a leaf, or a painting, but instead of seeing colors, you see a map of hundreds of different molecules—fats…

Abdullah Al Mahmud
Dec 22, 2025

Micro-XRF: super-powered, non-destructive chemical camera
4 min
research
technology
imaging

Micro-XRF is the super-powered, non-destructive chemical and super-sleuth chemical Camera.

Abdullah Al Mahmud
Dec 20, 2025

Interaction Effect in Regression Analysis
3 min
statistics
theory
regression

An interaction effect means the effect of one variable on the outcome depends on the level of another variable.

Abdullah Al Mahmud
Nov 19, 2025

Z-score: What it is and what it does
3 min
statistics
theory
probability

A z-score (also known as a standard score or z-value) measures how many standard deviations a data point is from the mean of a distribution. It’s a way of…

Abdullah Al Mahmud
Nov 19, 2025

A/B Testing: A Sample Analysis
2 min
statistics
theory
business

A/B Testing– A Sample Analysis. Scenario– Testing a new button color.

Abdullah Al Mahmud
Nov 18, 2025

IQR in Statistics
2 min
statistics
theory
dispersion

The Interquartile Range (IQR) is a measure of statistical dispersion that describes the spread of the middle 50% of data.

Abdullah Al Mahmud
Nov 5, 2025

From t-test to Anova
7 min
statistics
theory
anova

Let’s build this step by step, starting from a t-test and then showing how it generalizes naturally into ANOVA (Analysis of Variance).

Abdullah Al Mahmud
Oct 10, 2025

ARIMA and SARIMA Time Series Models
4 min
statistics
time-series
R

A clear, concise explanation of ARIMA, SARIMA, and related models — followed by minimal R examples..

Abdullah Al Mahmud
Oct 6, 2025

Spatio-temporal Analysis Workflow
2 min
R
GIS

The announcement of the clockplot package.

Abdullah Al Mahmud
Sep 10, 2025

clockplot: Plot Event Times on a 24-Hour Clock
1 min
R
clockplot

The announcement of the clockplot package.

Abdullah Al Mahmud
Aug 30, 2025

R Package Development Workflow
1 min
R
package
programming

The Workflow that you may follow while developing your own R package.

Abdullah Al Mahmud
Aug 29, 2025

CRAN Package Submission Checklist
4 min
R
package
CRAN
submission

A comprehensive checklist for a smooth R package submission to CRAN.

Abdullah Al Mahmud
Aug 29, 2025

Interpretation of an Auto SARIMAX model output in R
3 min
statistics
time-series
R

A comprehensive explanation of AR (AutoRegressive) and MA (Moving Average) models and their parameters.

Abdullah Al Mahmud
Mar 16, 2024

AutoRegressive and Moving Average Time Series Models with R Code
3 min
statistics
time-series
R

A comprehensive explanation of AR (AutoRegressive) and MA (Moving Average) models and their parameters.

Abdullah Al Mahmud
Feb 23, 2024

SARIMAX Time Series Models with R Code
5 min
statistics
time-series
R

A clear, concise explanation of ARIMA, SARIMA, and related models — followed by minimal R examples..

Abdullah Al Mahmud
Jan 20, 2024
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