Creating Boxplots Using LabVIEW

[Hillman]

Overview

This example demonstrates how to create box plot for interpreting the distribution of data.

Description

Data can be displayed in many ways in LabVIEW. One method of displaying a set of data is with a box-and-whisker plot: also known as Boxplots. These plots are helpful in interpreting the distribution of data. Rather than showing the entire dataset these plots produce a five number summary consisting of the median, the quartiles and the max/min values in the distribution.

On the NI Developer Zone, there is an article concerning this, NI Developer Zone: Boxplots and Stem-and-Leaf Displays. The article contains a VI library which takes in a 2D array and generates the plots on an XY graph. The article also covers how the VIs work.

Requirements

Software:

• LabVIEW 2012 (or compatible)

Steps to Implement or Execute Code

1. Run VI.
2. Observe the plot regarding your inputs on the front panel.

Additional Information or References 

 

**This document has been updated to meet the current required format for the NI Code Exchange.**

[ron_wood]

http://zone.ni.com/devzone/cda/tut/p/id/3047#toc2

Figure 2 depicts multiple boxplots on one graph..

but it is completely unclear how to do this, there is no multiboxplot implementation example anywhere.

Figure 2 should have been an example!

[Hillman]

Hi Ron Wood,

I no longer work for NI so I would recommend posting your question on the forum or contact your local sales office.

However, at the time I did make this work with multiple plots. I think all you need to do is expand the data input control as its a 2D array. The format plot subVI should resize the graph to display both plots.

Hope this helps,

James

[Craig_]

I spent some time improving this code, you find a version which supports multiple plots here:

https://decibel.ni.com/content/docs/DOC-42016