Histogram overview

Histogram overview

A histogram is a graphical representation of the distribution of numerical data. It uses bars to represent the frequency of data within specified intervals or bins. The height of each bar corresponds to the number of data points falling within that range. Unlike bar charts, histograms depict continuous data, and there are no gaps between the bars unless the bin has zero frequency.

Within Sigma Magic, histograms for discrete data are shown as bars of zero thickness.

Histograms are used for several reasons:
Application
Description
Visualizing Distribution
It indicates the shape of the data distribution, such as normal, skewed, uniform, or bimodal.
Understanding Variability
It depicts how data points are spread across different intervals.
Identifying Patterns
It helps detect outliers, gaps, or clusters in the data.
Comparing Distributions
Histograms can be used to compare distributions across different datasets or groups.
Data Summarization
It summarizes large datasets effectively by grouping data into manageable intervals.

Reference: Some of the text in this article has been generated using AI tools such as ChatGPT and edited for content and accuracy.

    • Related Articles

    • Overview of Basic Charts

      Basic Charts for Graphical Data Analysis Basic Charts can generate fundamental graphical data analyses using R software These charts are provided separately under theAnalytics menus, but some equivalent functionality is also available natively within ...

    • Normality test overview

      The Normality test analysis can be used to determine if the given data set is normally distributed. It performs a statistical analysis of the data and reports the probability value (p-value) that the data is normally distributed. The hypothesis test ...

    • Boosted Models Overview

      Boosted models are a class of ensemble learning methods used in machine learning to improve predictive accuracy by combining multiple weak learners (typically decision trees) into a strong model. These models are built sequentially, where each new ...

    • Create a histogram plot of company revenue

      Problem Statement The data shows the revenue earned ($) by a company on a weekly basis. Create a histogram of this data. How to perform analysis Step 1: Open Sigma Magic Click on the Sigma Magic button on the Excel toolbar. Click on the New button to ...

    • SIPOC Overview

      SIPOC (Suppliers, Inputs, Process, Outputs, Customers) is a high-level process mapping tool used in Six Sigma, Lean, and other process improvement methodologies. It provides a structured overview of a process by identifying key elements involved in ...