Order Analysis - Retrieve "helidata"

Hi Folks,

How do I get access to the helidata in the corresponding example

https://ch.mathworks.com/help/signal/examples/order-analysis-of-a-vibration-signal.html?

Thanks

[Ivan Solodkov]

Hi, https://www.youtube.com/watch?v=79tVxKArf7E

[Walter Roberson]

With respect to the link @Ivan Solodkov posted: "In this webinar, we create an App for order analysis of a vibration signal using MATLAB App Designer. "

Answer 1

[Star Strider]

Try this:

load helidata

It uses rpmfreqmap, introduced in R2015b, so if you have that or other functions it uses, you should also have that .mat file.

Using:

q = which('helidata.mat')

produces:

q =
    'C:\Program Files\MATLAB\R2020a\toolbox\signal\signal\helidata.mat'

so that tells you where it is.

Consider loading it as:

hd = load('helidata.mat')

loading it into the ‘hd’ structure, so you know what it contains and can choose to load all or part of its contents into your workspace. (I have not loaded it or looked at it, so I have no idea.)

[deltanabla]

Ah... it looks like I need to download the R2020a version to get access to the file?

Thanks

[Star Strider]

I am not certain when that was introduced, however it uses a function introduced in R2015b (as I noted above), so if you have that or a later version, you may have it. (I have R2020a, and I was able to find it.) Run the which call to see if you already have it.

My pleasure!