Abscissa 4.0.4

Abscissa is a program to make high-quality 2D-plots from data given in ascii table form. Data can be created and modified by means of a user defined formula. A least-square-fit routine helps to optimize the parameters of this formula in order to fit the given data best. It is made for scientists.

Features:

- ASCII data import and export

- fast reading and plotting

- plotting in many styles

- linear, logarithmic, and date axes

- text objects in the diagram

- x, y error bars

- 4 interpolation methods

- user entered functions f(x)

- flexible functions (parameters, user data, compiled C-code)

- parameter fitting using a Least-Squares Method

- fit of function with several independent coordinates (R^n->R)

- external programs can use Abscissa as plot front-end

- perl scripts can be recorded, played, and saved

- data editing in a spread sheet

- data sorting

- data statistics and correlation