Error in readInput - unrecognized function or variable 'swallow_csv'

6 次查看（过去 30 天）
Merve Can
Merve Can 2021-5-6
回答： Asvin Kumar 2021-5-12
Hi everyone,
I am trying to read a big CSV file (7.5 GB) and extract data from it into my workspace. I am using the following code:
path = '/Users/mervexxx/Desktop/Kxxxx/SimulationAnalysis/';
element = 'Reference_case.csv';
filename = [path,element];
[numbers,txt] = readInput(filename);
The csv is in the same folder as the m.-file and it works on a windows pc. However, on my mac I am getting the following error:
Unrecognized function or variable 'swallow_csv'.
Error in readInput (line 6)
[numbers, txt] = swallow_csv(filename, quote, sep, escape);
Error in SimulationAnalysis (line 56)
[numbers,txt] = readInput(filename);
Can you help me with this? I have 16GB RAM so that shouldn't be a problem.
Thanks!!

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回答（1 个）

Asvin Kumar
Asvin Kumar 2021-5-12
Have a look at https://adared.ch/efficient-csv-reader-for-matlab/
The swallow_csv mex which was generated for windows will not work for macOS. You will have to regenerate the mex file for macOS. Here are some examples from the mex doc page that should help you get started: https://www.mathworks.com/help/matlab/ref/mex.html#btw17rw-5

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