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readmatrix "not enough input arguments"

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I'm getting a really strange error when trying to use readmatrix() to load a .csv file. It tells me there's not enough input arguments!
d_obs = readmatrix(sprintf('%s/%s',NMR_path,NMR_obs_filename));
this is the command I'm using. The strange thing is that just last week, this worked perfectly, and I have not changed anything since then. If it is at all related, I also get a message "The import tool doesn't have access to read the file" when I try to open the file directly by double-clicking it in the current folder tab. I checked the files and they're not empty.
Anyone got some idea of what is going on here?

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Frederikke Hansen
Frederikke Hansen on 26 Nov 2020
>> which invert_logdist -all
C:\Users\frede\Documents\MATLAB\NMR Project\Alt\Alternative Approach testing\Easy to use\invert_logdist.m
I'm using R2020b :)
Star Strider
Star Strider on 26 Nov 2020
What else is in the
C:\Users\frede\Documents\MATLAB\NMR Project\Alt\Alternative Approach testing\Easy to use\
directory?

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Accepted Answer

Ameer Hamza
Ameer Hamza on 26 Nov 2020
Edited: Ameer Hamza on 26 Nov 2020
You have defined a function name replace() placed on path
C:\...\Thesis\emi-matlab-master\EMI_Calibration\replace.m
which is shadowing the MATLAB's built-in function named replace(). Rename your function to something else.

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Frederikke Hansen
Frederikke Hansen on 26 Nov 2020
OH! This makes sense, the scripts in this folder are not written by me and I only recently added it to my directory. Thank you!

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