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This is an incorrect function call: No NaNs or Infs

A bug in the error handling code of a MATLAB function can cause unexpected behavior. This article will discuss how to troubleshoot and fix this error, as well as some workarounds for when you do not have access to the error log file.

This is an incorrect function call: No NaNs or Infs

error in do_one(nmeth) : na/nan/inf in foreign function call (arg 0) error in do_one(nmethod) : NaN or Inf error found error in do_one(nmethod) : error found error in callToMethod (type,name,arg0): NaN or Inf error

error in callToMethod (type,name,arg0): error found

error in callToMethod (type,name),error: na/nan/inf error detected for lla.meth

A bug can cause an unexpected behavior if the MATLAB function is not properly handling errors when they occur and it has a conditional statement that evaluates to false . Here we show how you may be able to troubleshoot this issue and fix it on your own. We also provide some workarounds for those who cannot access the log files of their code.

The next step in error troubleshooting is to check the MATLAB error log file, which may be found at ~/matlab/logs. Currently, many operating systems place these files in a different location from what MATLAB expects them to be on your system:

Windows: C:\Users\username\documents\my matlab projects \sim_data;

OSX and Linux: /home/$USERNAME/.local/share/MATLAB/R2012aBin64bit -Linux (Ubuntu): ~/.local/libexec

To find out where this directory is located you need to open up terminal and type “ls”. This will provide a list of directories that are currently being shown as active by ls command. The error log file may be found at ~/matlab folder, which can’t accessed unless the user has permission for it. You have to go into your MATLAB settings panel in order to change the location of error logs so they could be accessed.The error log file may be found at ~/matlab folder, which can’t accessed unless the user has permission for it. You have to go into your MATLAB settings panel in order to change the location of error logs so they could be accessed.

In this example we are going to save all error messages as a text document:

save(“errlogtxt”,”text”)

This will open up an errlogtxt window that contains error messages generated by MATLAB when there was an issue with any function call or command inputted out manually. We now know where these files are located on our system and how to access them accordingly if needed after opening up terminal and typing “ls”.

The error log file may be found at ~/matlab folder, which can’t accessed unless the user has permission for it. You have to go into your MATLAB settings panel in order to change the location of error logs so they could be accessed.

In this example we are going to save all error messages as a text document: Save(“errlogtxt”,”text”)

This will open up an errlogtxt window that contains error messages generated by MATLAB when there was an issue with any function call or command inputted out manually. We now know where these files are located on our system and how to access them accordingly if needed after opening up terminal and typing “ls”. **

The location of folders might vary depending on your system’s setup.

matlab folder can’t be accessed if the user doesn’t have permissions. You would need to go into your MATLAB settings panel in order to change error logs location so it could be accessed.

In this example, we saved all error messages as a text document: Save(“errlogtxt”,”text”) and opened up an errlog txt window that contains error messages generated by MATLAB when there was an issue with any function call or command inputted out manually

We now know where these files are located on our system and how to access them accordingly after opening up terminal and typing “ls”. **

There is no code for this blog post because you haven’t written anything yet. The error message in MATLAB is error in do_one(nmeth) : na/nan/inf in foreign function call (arg

I have been using matlab for a while now and I keep seeing errors. It’s always the same error: NaN or Inf . This error seems to occur when there are no numbers, but then infinity pops up as the answer instead.

It doesn’t seem like it would be an issue if you were running these commands on your own computer because of how computers work with infinities, so maybe this error occurs more often than we think?

In any case – this article will help explain what this error might mean and how to fix it!

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