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Fityk
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Fityk

Overview
Synopsis

Fityk [fi:tik] is a program for data processing and nonlinear curve fitting.

Category

Data Mining Software Free

Features

• Intuitive graphical interface (and also command line interface),
• Support for many data file formats, thanks to the xylib library,
• Dozens of built-in functions and support for user-defined functions,
• Equality constraints,
• Ftting systematic errors of the x coordinate of points
• Manual, graphical placement of peaks and auto-placement using peak detection algorithm,
• Various optimization methods
• Handling series of datasets,
• Automation with macros (scripts) and embedded Lua for more complex scripting
• Open source licence (GPLv2+).

License

Open Source

Price

•1 month subscription: $115 (≈ €90)
•1 year subscription: $199 (≈ €150)
•2 years subscription: $299 (≈ €225)

Pricing

Subscription

Free Trial

Available

Users Size

Small (<50 employees), Medium (50 to 1000 employees), Enterprise (>1001 employees)

Website
Company

Fityk

What is best ?

• Handling series of datasets,
• Automation with macros (scripts) and embedded Lua for more complex scripting
• Open source licence (GPLv2+).

What are the benefits ?

• Operate on an intuitive graphical interface
• Support for many data file formats
• Access to dozens of built-in functions
• Support for user-defined functions
• Automation of many operations
• Continuation of use after subscription expiry

Rating
Our Rating
User Rating
Ease of use
7.6
8.1
Features & Functionality
7.6
8.2
Advanced Features
7.6
8.1
Integration
7.6
8.1
Customer Support
7.6
Performance
7.6
Training
Implementation
Renew & Recommend
Bottom Line

Fityk is used by scientists who analyse data from powder diffraction, chromatography, photoluminescence and photoelectron spectroscopy, infrared and Raman spectroscopy, and other experimental techniques.

7.6
Our Rating
8.1
User Rating
1 rating
You have rated this

Fityk [fi:tik] is a program for data processing and nonlinear curve fitting. It is primarily used by scientists who analyse data from powder diffraction, chromatography, photoluminescence and photoelectron spectroscopy, infrared and Raman spectroscopy, and other experimental techniques and also used to fit peaks – bell-shaped functions (Gaussian, Lorentzian, Voigt, Pearson VII, bifurcated Gaussian, EMG, Doniach-Sunjic, etc.), but it is suitable for fitting any curve to 2D (x,y) data. Fityk has the following features for users; intuitive graphical interface (and also command line interface), support for many data file formats, thanks to the xylib library, dozens of built-in functions and support for user-defined functions, equality constraints, fitting systematic errors of the x coordinate of points (for example instrumental zero error or sample displacement correction in powder diffraction), manual, graphical placement of peaks and auto-placement using peak detection algorithm, various optimization methods (standard Marquardt least-squares algorithm, Genetic Algorithms, Nelder-Mead simplex), handling series of datasets, automation with macros (scripts) and embedded Lua for more complex scripting, the accuracy of nonlinear regression verified with reference datasets from NIST, an add-on for powder diffraction data (Pawley refinement), modular architecture, and an open source licence (GPLv2+).Subscribers have access to all versions of the program and to e-mail support. The program can be installed on many computers and can be also used after the end of subscription. Fityk is usually bought by companies and institutions.

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1 Reviews
  • Ernesto Trabazo
    September 10, 2017 at 11:34 am

    Experimental data, and nonlinear fitting of analytical functions

    Company size

    Small (<50)

    User Role

    Executive

    User Industry

    Health care

    Rating
    Ease of use8.1

    Features & Functionality8.2

    Advanced Features8.1

    Integration8.1

    ADDITIONAL INFORMATION
    Fityk is a program for data processing; usually experimental data, and nonlinear fitting of analytical functions; especially peak-shaped. In other words, it is primarily peak fitting software, but can handle other types of functions such as data processing, and provides ergonomic graphical interface with a command line interface and scripting API. Fityk offers various nonlinear fitting methods, simple background subtraction, and other manipulations to the dataset. It also allows graphical placement of peaks and auto-placement using peak detection algorithm. Fiyk also supports analysis of a series of datasets, automation of common tasks with scripts and embedded Lua for more complex scripting. The accuracy of nonlinear regression is verified with reference datasets from NIST. The program can be operated with only a mouse when handling simple cases. But it can also handle quite complex scenarios letting you define your own function types and specify sophisticated dependencies between parameters of the functions. The program lets you fit multiple datasets together using common set of parameters. You can also model zero-shift in your instrument or do more complicated refinement of the X scale. Fityk plays a significant role in the fields of; crystallography, chromatography, photoluminescence and photoelectron spectroscopy, infrared and Raman spectroscopy, and many others.

Ease of use
Features & Functionality
Advanced Features
Integration
Customer Support
Performance
Training
Implementation
Renew & Recommend

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