What is DataFit?

DataFit: Advanced Nonlinear Regression & CAD Application

Looking for powerful curve fitting software? Download DataFit today - an advanced CAD application designed for professional scientific and engineering analysis. This sophisticated tool performs nonlinear regression (curve fitting), comprehensive data plotting, and detailed statistical analysis with remarkable precision.

Clean Interface & Easy Data Management

DataFit presents users with a clean, intuitive graphical interface that simplifies complex analytical processes. Setting up a new project is straightforward - simply specify the number of independent variables and configure standard deviation columns according to your analytical needs.

The flexible data import capabilities allow you to:

• Import from plain text, DAT, or CSV file formats


• Connect directly to any ODBC sources (Microsoft Access, dBase, Excel, Oracle, Paradox, Visual FoxPro, SQL Server)


• Enter data manually via the standard spreadsheet interface


• Cut and paste information from other programs

When your analysis is complete, export your results to the same formats or print your data directly. This versatility makes DataFit an essential regression analysis tool for researchers and engineers requiring seamless data workflow.

Powerful Regression Capabilities

The core strength of DataFit lies in its robust regression analysis capabilities. Download DataFit to access both linear and nonlinear regression models supporting up to 20 independent variables with advanced variable selection features for effective data mining.

Technical Specifications:

• Supports up to 20 independent variables


• Processes both linear and nonlinear regression models


• Employs Levenberg-Marquardt method for nonlinear regression


• Includes numerous predefined 2D and 3D regression models


• Allows creation of user-defined models with up to 100 fitting parameters


• Enables rule-based initial estimates


• Supports analytical derivatives integration

The software includes an extensive library of predefined two and three-dimensional nonlinear regression models commonly used in scientific and statistical analysis. For specialized needs, create custom regression models with up to 100 fitting parameters or variables, complete with rule-based initial estimates and analytical derivatives.

Advanced Analysis & Sorting Features

DataFit's curve fitting application offers intelligent model selection through automatic sorting based on critical criteria like residual sum of squares and correlation coefficient. Apply regression operations to single models, groups of models, or across all available models to identify optimal fits for your data.

Comprehensive reports provide detailed information for each solved regression model, including:

• Number of observations and missing data points


• Nonlinear iteration count


• Sum of residuals


• Average residual values


• Coefficient of multiple determination


• Detailed variance analysis


• Complete data tables with entered, calculated, and residual data

Visualization & Output Options

The regression analysis software provides excellent visualization capabilities with 2D and 3D plotting functions for equations, raw data, and regression models. These visual representations help researchers better understand relationships within complex datasets and effectively communicate findings.

Export & Integration Features:

• Export results and data tables to XLS or HTML formats


• Automatically generate source code for use in other applications


• Built-in data calculator supporting mathematical and statistical operations


• Perform calculations on curves, discrete data, or numerical values


• Create professional-quality plots and visualizations

DataFit's curve fitting functionality maintains detailed logs of the regression process, including any errors encountered, providing full transparency for scientific documentation and troubleshooting.

Who Should Use DataFit?

While accessible to anyone working with data analysis, DataFit is particularly valuable for:

• Engineers requiring precise curve fitting


• Scientific researchers analyzing experimental data


• Statisticians performing advanced regression analysis


• Data scientists seeking robust analytical tools


• Professionals in fields requiring nonlinear modeling

Download DataFit regression software today to access a reliable scientific and engineering tool that impresses with its support for numerous calculations and statistical operations. Its comprehensive feature set makes it the ideal CAD application for professional users requiring sophisticated nonlinear regression capabilities combined with powerful visualization tools.

Experience the difference that professional-grade curve fitting software can make in your analytical workflow - get DataFit now!

How Download Works

Go to the Softpas website, press the 'Downloads' button, and pick the app you want to download and install—easy and fast!