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histogram

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Aikesheng Open Source Community
Aikesheng Open Source Community
Dec 21, 2022 · Databases

Importing Existing Histogram Data in MySQL 8.0.31

MySQL 8.0.31 introduces a new syntax that allows importing pre‑computed histogram data directly into a table, dramatically reducing the time needed to update histogram statistics compared with the traditional online creation method.

Database StatisticsMySQLdata-import
0 likes · 6 min read
Importing Existing Histogram Data in MySQL 8.0.31
Model Perspective
Model Perspective
Sep 10, 2022 · Fundamentals

How to Determine Histogram Bin Count Using Sturges' Formula

This article explains how to calculate the number of bins for a frequency distribution histogram using Sturges' formula, illustrating the process with a sample of 50 data points where the maximum value is 980 and the minimum is 500, and shows how to derive the bin width.

Data AnalysisSturges formulabin width
0 likes · 1 min read
How to Determine Histogram Bin Count Using Sturges' Formula
Model Perspective
Model Perspective
Jul 8, 2022 · Fundamentals

Unlocking Statistics: Key Concepts from Samples to Skewness Explained

This article introduces the fundamentals of statistical analysis, covering the distinction between populations and samples, constructing frequency tables and histograms, and explaining essential descriptive measures such as mean, median, variance, standard deviation, range, skewness, kurtosis, covariance, and correlation coefficients.

correlationdescriptive statisticshistogram
0 likes · 5 min read
Unlocking Statistics: Key Concepts from Samples to Skewness Explained
Python Programming Learning Circle
Python Programming Learning Circle
Nov 2, 2021 · Fundamentals

Plotly Python Tutorial: Scatter, Bar, Histogram, Express, 3D, and Density Map Visualizations

This tutorial demonstrates how to install Plotly, import necessary modules, and create various visualizations—including scatter, bar, histogram, pie, 3D, and density map charts—using both the graph_objects and express APIs with sample CSV data and code snippets.

3D PlotBar ChartData Visualization
0 likes · 7 min read
Plotly Python Tutorial: Scatter, Bar, Histogram, Express, 3D, and Density Map Visualizations
Sohu Tech Products
Sohu Tech Products
Apr 14, 2021 · Artificial Intelligence

QHBinimageMan: A Swift macOS Tool for Converting Color Images to Grayscale and Binary

This article introduces QHBinimageMan, a Swift‑based macOS utility that demonstrates the full pipeline from color image to grayscale and finally to binary image generation, covering pixel handling, histogram analysis, thresholding, resolution reduction, and a practical live‑streaming gift animation application.

Swiftbinary imagehistogram
0 likes · 7 min read
QHBinimageMan: A Swift macOS Tool for Converting Color Images to Grayscale and Binary
Aikesheng Open Source Community
Aikesheng Open Source Community
May 25, 2020 · Operations

Understanding Prometheus Data Collection: Formats, Types, and Best Practices

This article explains Prometheus data collection by describing metric syntax, label usage, time‑series concepts, the four logical metric types (Counter, Gauge, Histogram, Summary), and provides practical naming, labeling, and selection guidelines for effective monitoring.

Best PracticesGaugePrometheus
0 likes · 7 min read
Understanding Prometheus Data Collection: Formats, Types, and Best Practices
Aikesheng Open Source Community
Aikesheng Open Source Community
Jun 3, 2019 · Databases

Using MySQL 8.0 Histograms to Improve Query Performance

MySQL 8.0's histogram feature provides column value distribution statistics that help the optimizer choose better execution plans, and the article demonstrates how to create, view, and leverage histograms to significantly reduce query costs for range predicates.

Database StatisticsMySQLQuery Optimization
0 likes · 6 min read
Using MySQL 8.0 Histograms to Improve Query Performance