is a tool to generate Cartesian X/Yplots from scientific data. from the reviewer at 3d2f.com: 

I say RtPlot is excellent software, nice and clear in use, with a friendly interface that can help you anytime you need to enter and calculate tabular data or simply make a plot.


The design and user interface of the program enables you to enter and calculate tabular data. You can view the changing graphs, including linear and non linear regression, interpolation, differentiation and integration, during entering the data. A powerful reporting module generates ready to publish documents. 

Features  


Single User License only US$29.90


The centre of all activities is the Data Table. This window holds a table of all the numerical data. This window is also the central to load and save data. The columns of this table can be used to enter numbers or to show calculated values within so called “live columns”. These columns can be the base of other calculated columns and can be the source of the data used for a line in a graph. This is done by assigning the columns to X or YAxis values of data series within a graph. The columns can also be assigned as the values used for a statistical weight within regression line calculations and dimensions of error bars around the data points. 

The numerical data are represented within at least one Graph Window. This window shows the graphs of all assigned column data. The options of the lines, symbols and calculation parameters can be altered directly at the right. All the dimensions, colors and styles of the graph, the axis and legends can be altered. The Graph Window also contains the functions for adding calculated lines as linear, non linear regression, interpolation, smoothing, differentiation and integration. 

The Reports can contain any calculation result related to the added function lines and the graph. It is processed by merging a template document with the actual data. These documents are freely editable with options similar to those of your favorite word processor. 

More Information see PDFManual(1.96MB). The program is distributed as freeware. Copyright © 2008 Horst Reichert all rights reserved 