Undefined function 'upfirdn' for input arguments of type 'double'

Hello,

I am working with BCILAB but when I run one of the tasks, I get the following error (below):

Undefined function 'upfirdn' for input arguments of type 'double'

From what I can understand, Matlab doesn't recognize the function 'upfirdn'. With some searching online I think this function is part of the "signal processing toolbox". I may be wrong though.

Is there anyway to verify that I have the signal processing toolbox? and also how I could get it?

Thanks!

Answer 1

[Star Strider]

‘Is there anyway to verify that I have the signal processing toolbox?’

Run this in a script or the Command Window:

ver('signal')

producing something like this (if you have it installed):

-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.9.0.1538559 (R2020b) Update 3
MATLAB License Number: #####
Operating System: Microsoft Windows 10 Pro Version 10.0 (Build 18363)
Java Version: Java 1.8.0_202-b08 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
-----------------------------------------------------------------------------------------------------
Signal Processing Toolbox                             Version 8.5         (R2020b)

Getting it depends on the sort of license you have.

[Antoine Nauleau]

So I don't have the Singal Processing Toolbox, and when I click on "Add-ons" > "Get Add-Ons" I get this error:

Dot indexing is not supported for variables of this type.

Error in matlab.internal.addons.AddOnsWindow/bringToFront (line 68)
            obj.webwindow.bringToFront();

Error in matlab.internal.addons.Manager/show (line 51)
            obj.addOnsWindowInstance.bringToFront();

Error in matlab.internal.addons.launchers.showManager (line 70)
        matlab.internal.addons.Manager.getInstance.show(navigationData);

I'm using Matlab2020b, on Macbook pro Catalina 10.15.17

[Star Strider]

I have no idea what the problem could be with the ‘Add-Ons’ app.

First, close and re-start MATLAB and see if that solves the ‘Add-Ons’ app problem.

If it does not, it may be necessary for you to Contact Support.