Apps similar to timeplotters include Matplotlib, which is open source with a free version. Other options are GnuPlot, DataGraph, kSar : a sar grapher and Core Plot. In total there are seven Numerical Computation Software like timeplotters for Mac, Windows, Linux, iPhone and iPad.
Matplotlib is a comprehensive library for creating static, animated, and interactive visualizations in Python. Matplotlib makes easy things easy and hard things possible.
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Gnuplot is a portable command-line driven interactive data and function plotting utility. It was originally intended as to allow scientists and students to visualize mathematical functions and data. It does this job pretty well, but has grown to support many non-interactive...
DataGraph is a simple and powerful graphing application for Mac OS X. It is a great companion for Excel, Numbers or any of the big statistical packages.
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ksar is a sar graphing tool that can graph for now linux,mac and solaris sar output. sar statistics graph can be output to PDF or jpg/png/csv/txt.
Core Plot is a 2D plotting framework for Mac OS X and iOS. It is highly customizable and capable of drawing many types of plots
A simple plotter and numerical solver, which can plot CSV style plain text files with numerical data separated by whitespace, as well can numerically solve equations and ODEs to generate data and plot them for studying dynamical systems.
