Software to make line graph, Like Excel?

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Discussion Overview

The discussion revolves around finding software alternatives to Excel for creating line graphs, particularly for visualizing data from a program that converts sine waves into triangular waves. The focus is on software that can handle larger datasets and provide clear graphical representations to identify issues in the output.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant inquires about software that can convert a series of numbers into a line graph, expressing dissatisfaction with Excel's limitations for larger datasets.
  • Another participant suggests using gnuplot as a potential solution.
  • A different participant mentions Matlab as a software option, noting its cost as a drawback.
  • A later reply confirms that gnuplot is effective and reiterates the high cost of Matlab.
  • Another participant proposes R and its ggplot2 library as an open-source alternative for creating high-quality graphs, providing a link for further examples.

Areas of Agreement / Disagreement

Participants present multiple software options, but there is no consensus on a single preferred solution. The discussion remains open with various suggestions being offered.

Contextual Notes

Participants express concerns about the limitations of Excel and the cost of some software options, but do not delve into specific technical requirements or limitations of the suggested software.

Who May Find This Useful

This discussion may be useful for individuals seeking software alternatives for data visualization, particularly in the context of programming and signal processing.

tonyjeffs
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Is there any software that will convert a series of numbers into a simple line graph, the same as Excel, but allowing me to use a lot more numbers?

I'm writing a program in c to convert a sinewave, or any wave, into a triangular wave.
I've sort of done it, but there is noise in my triangular wave output if the input is of varying frequency, and I don't know for certain why. It is very hard to tell by looking at a page of numbers, so I want to look at a graphical representation of my triangular wave and see what's going wrong. The data, the points on the graph, is too much for excel.

Thanks
Tony
 
Last edited:
Physics news on Phys.org
Matlab of course. Not free, though.
 
Gnuplot does the trick.
Matlab - £3,000. The opposite of free!

Many thanks
Tony
 
R is open source software and a library called ggplot2 allows you to make publication quality graphs. A bunch of examples are available at http://www.r-chart.com/" .
 
Last edited by a moderator:

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