Function Library

The Fit command has an ‘Arbitrary Fit’ option. This option allows you to specify the form of the function y = f(x) that you want to solve. For detailed documentation see Fit command > Arbitrary Fit. This article shows you how to save a to a simple function library, so […]

How to Set Column Headers

When you import data using Edit > Paste or Data > Import File, DataGraph will analyze the first row of data to determine whether or not it contains column tittles, also known as a header row. If the columns headers are not assigned properly, you can manually enter them or […]

DataGraph 4.7

DataGraph Version 4.7 Released June 21, 2021 Free update for all license holders.App store users must download from the mac App store.All other license holders download here. Why are you seeing this page? You just opened DataGraph and the program detected that a new version of DataGraph has been released. This update is […]

Welcome to DataGraph 4.7!

DataGraph 4.7 is a significant update that works better and has a number of important tweaks and useful additions. This version features a new scalar field command and pop-up notes. We also added new options based on users feedback, such as text outlines for labels and drawing intermitting points in […]

April Webinars: Chart Challenge with DataGraph!

This month we have been inspired by the #30DayChartChallenge on Twitter. The challenge has five overall categories and each day has a specific theme. To participate, all you need to do it post a graph using #30DayChartChallenge that is inspired by the theme of the day. Here are the DataGraph […]

Text Formatting

When DataGraph displays a text, from a text box, a tokenized field or a data column, it applies the formatting as defined in the Style settings, including font size, bold, italics, and color. In addition, the program will look for commands in the text string that alter the format, draw […]

Data Input

Manual Input DataGraph has four primary column types. To create any of these columns under the Data menu. For example for a number number select Data > Add Number Column or use the shortcut Command-1. When you enter in the data table, the following rules are used: Double-click – opens a […]

Scalar Field Basics

The Scalar Field command allows you to apply colors, contours, or labels using data that is mapped to an x-y grid. Add a Scalar Field Select Command > Add Scalar Field to add the scalar field command. Example 1 Given a data set with three numerical columns, x, y, and […]

Scalar Field Examples

The Scalar field command works with two-dimensional regular grids. Regular Uniform Non-uniform Rectilinear Curvilinear Grid Download the example files to see how the following graphs are made. Uniform Grid The Scalar Field is used to represent a 10×10 uniform grid of data in three columns (x,y,z). A Color Ramp variable […]

How to add Error Bars

Several plotting commands have the option of adding error bars including: Plot, Points, Bar, and Bars. Key Features: Control the style of the error bars. Control the direction of the error bars. Vary the magnitude of the bars in any direction. NOTE: These examples assume you have the value for […]