__Abscissa__

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.

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Main 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

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Requirement:

for Mac OS X 10.3 to 10.6 use Abscissa 3.4.1

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Content:

last update: Oct 30, 2015 by
R. Brühl ruediger.bruehl@ptb.de