Name: Abscissa
Rating: 4.875 (4 reviews)

Free

Absolutely Free

Abscissa overview

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.

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

What’s new in version 4.0.4

Updated on Apr 14 2021

Version 4.0.4:

Abscissa.app is now a signed and notarized app
Fixing many bugs by Inspector panel rebuild (all NSMatrix were replaced by NSStackView)
Parameter and Formula panel are now in sync
Fixed parameter initialization by means of the mouse
Fixed rounding issues in the axis panel

Information

License

Free

Size

906 KB

Developer’s website

http://rbruehl.macbay.de/

Downloads

5686

App requirements

Intel 64
OS X 10.12 or later

0.0

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Comments
User Ratings

Bill-Clinton

Apr 1 2013

3.4.3

Version: 3.4.3

I haven't used this program--it might be wonderful, but I am puzzled by all of the otherwise high-quality plotting programs for the Mac that force you to put your data into ASCII files. This is a big nuisance for technical data which is usually available in binary form, thus requiring a wasteful and potentially error-prone step of conversion. Floating-point binary formats were standardized years ago. Making a program have an option to read binary files is trivial, even allowing the user to specify header bytes and row-column ordering. It just amazes me that this is not included in most plotting programs.

DenisGRATIAS3020

5.0

Abscissa is the simplest, thinnest and most powerfull 2Dplot program I have ever used. I make many plots with a huge number of data (1000 x 1000) calculated by my owns scientific programs output on ASCII files. They are very rapidly absorbed and displaied by Abscissa. The quality of the final plots together with its many caption options are such that I can use Abscissa graphic ouput directly in my scientific publications. Abscissa is a beautifully written and smart software!

Dorkypants

Dec 10 2009

3.4.1

Version: 3.4.1

Apple includes an app called Grapher with OS X. It is capable of importing sets of points (2D or 3D) from disk files and plotting them.

Guest

Aug 11 2003

3.2.1

Version: 3.2.1

Abscissa is one of the best available 2D-plot program. Importing data from ascii files is very simple and efficient. Graphics are great and easy to export. The interface is not immediatly intuitive and a detailed manual would be welcome to tak advantage of the many powerful features that you discover in using the program. A great software, beautifully optimized and efficient.

Version: null

4.8

Abscissa