Have you ever built a sentiment analysis model, only to realize you have thousands of reviews but zero labels? It is a common headache I have faced many times while working on large-scale Python Keras projects for retail clients. Manually labeling 10,000 reviews is not just boring; it is a massive waste of your technical … Read more >>
To create a multiple bar chart in Matplotlib (also called a grouped, double or side-by-side bar chart), draw each series with ax.bar() at positions shifted by the bar width, for example x – width/2 and x + width/2, then put the group labels in the middle with ax.set_xticks(x, labels). With pandas, df.plot(kind=”bar”) draws a grouped … Read more >>
Plotting data with vastly different scales on the same chart can be a real headache. I’ve often found myself staring at a flat line on a linear scale, simply because one dataset overshadowed the other. In this tutorial, I will show you how to implement a secondary Y-axis and apply a logarithmic scale. This is … Read more >>
When I first started building custom data visualizations in Python, I often found myself needing to highlight specific regions on a chart. Whether it’s marking recession periods in economic data or outlining specific clusters in a scatter plot, knowing how to draw shapes is a fundamental skill. In this tutorial, I will show you exactly … Read more >>
When I first started visualizing complex datasets, I often relied on box plots to see the distribution of my data. However, I quickly realized that box plots can hide important details, like whether a distribution has multiple peaks. That is when I discovered violin plots in Matplotlib, which combine a box plot with a kernel … Read more >>
To add a secondary y-axis in Matplotlib, call ax2 = ax.twinx(): it creates a second axes that shares the x-axis and puts its y-axis on the right, so two series with different scales can share one plot. If the right axis should show the same data in another unit (°C and °F, km and miles), … Read more >>
Recently in a Python training, Someone asked me how to pass a function as a parameter in Python. After experimenting with this concept, I will explain how to pass a function as a parameter through suitable examples and screenshots of the executed example code. Functions as Objects In Python, functions are first-class objects. This means … Read more >>
In this tutorial, I will explain how to create a Python Tkinter panel with search functionality. As a software developer, I recently faced a challenge where I needed to display a large amount of data in a user-friendly manner. The solution was to create a Tkinter panel with search capabilities. Throughout this article, I’ll share … Read more >>
In this tutorial, I have explained how to create a tuple from the list in Python. As a Python developer working on various projects for my clients across the USA I came across a scenario where I needed to create a tuple where data were stored in the list. After researching I found a few … Read more >>
A small reporting script can look perfect until it produces the wrong totals for Chicago, Austin, and Seattle. Printing every variable may help, but it quickly makes the terminal noisy and hard to follow. That is where the Python breakpoint() function saves time. I use it when I need to stop a script at the … Read more >>