Tag Archives: origin

Multi plot in Origin 9

Multi plot in Origin 9

In this post, the methodology to plot multi plots in Origin will be discussed. Origin is a computing platform to interactively plot and analyse data, and is produced by OriginLab. This is one of the most invaluable and necessary tool for scientific data analysis and plotting.

The debate between Matlab plot and Origin plot depends on the user and I will leave it  for open discussion. All that can be said is both the programs are equally good, and depending on the problem statement one can use either of the tool.

In this post, the process of plotting multiple plots will be discussed using different set of data.

Origin offers multiple way of doing this and some are shown below:

  • Trivial way

In this, the selected data can be arranged in adjacent columns, and using the plot function in  the toolbar, the data is plotted as shown.

Simple way of plotting using adjacent coloumns

Simple way of plotting using adjacent coloumns

  • Stack by offsets

In this plotting technique, the data are stacked using y-offsets. It can be plotted using the Plot-Multi plot-Stack by y offset. An example figure is shown below

Stacking by y-offset

Stacking by y-offset

  • Multi-stack plot

This is by far the most important form of multiple stack plot in which each of the data columns are plotted in individual cells and are stacked on top of the other.  An example is shown below:

Multiple Stack plot

Multiple Stack plot

 

There are multiple other ways to perform multi-plots. These options can be found in the Plot function in the toolbar, and the reader can try the various functions.

An evaluation version of Origin can be found here.

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Multi-curve fitting in Origin Pro.

Multi-curve fitting in Origin Pro.

Origin is a data processing and analyzing software and probably one of the most popular software choice to analyse data in industry,academia and laboratories. The versatility of the software is its easy to use, updates in real time, robust analysis, import and export capabilities even to LATEX. I will recommend this software to anyone who spends lot of time crunching numbers and getting some sweet results from it.

Yes, Matlab can do curve fit as well using cftool option. Yet there are some functions which can get a bit complicated with matlab fit tool, and also the energy to write a code when you can use ready to use  functions( in thousands) to do that for you.

In this article, I have attached a video tutorial to show how a double Lorentz function is fitted to a signal data to get the half width, peak center etc of the signal.

You can find the video in the link here.