IGOR Pro is a scientific data analysis software, numerical computing environment and programming language that runs on WindowsorMac operating systems. It is developed by WaveMetrics Inc., and was originally aimed at time series analysis, but has since then evolved and covers other applications such as curve fitting and image processing. It comes with a fully functional programming language and compiler, but many functions are also accessible through menus. IGOR Pro is primarily known for its graphics capabilities, and like Origin and other similar programs, is often used to generate plots for scientific and other publications. Other features include the possibility of extending the built-in functions with external operations (XOP) allowing data acquisition, manipulation and analysis features, communication with external devices and in principle any other task that can be programmed in CorC++.
It was first released as "Igor" in 1989, and became "Igor Pro" circa 1994.[1]
Waves are up to four-dimensional arrays that can carry not only numbers, but also characters (text), or date-and-time entries. Waves can carry meta-information, for example, the physical units of each dimension. Igor offers a wide choice of methods to work with these waves. It is possible to do image-processing with images that have been saved as two- or three-dimensional waves. In addition, two-dimensional waves can be used for matrix calculations.
A community of users and enthusiasts provide user-to-user support through a mailing list, IgorExchange (a collaborative web site sponsored by WaveMetrics), and GitHub repositories.
The "INO MAKRO" was developed in Japan for the analysis of X-ray absorption and photoemission spectra.[importance?]
Igor Pro has been used as a platform for the modelling of impedance data. The first reported application was mechanical impedance data, specifically pneumatic performance of the lung.[citation needed] A more recent application is for electrochemical impedance spectroscopy data, developed at NIMS in Japan.[10][importance?]
