Can't retrieve array content, just metadata

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Mak 2017-5-29

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https://ww2.mathworks.cn/matlabcentral/answers/342317-can-t-retrieve-array-content-just-metadata

关闭： MATLAB Answer Bot 2021-8-20

Hi everyone!

I have a task where I need to open a csv file and extract and manipulate the data. I have now tried with the comands: importdata, fopen, load and several others. However, I keep only getting info about the data aray, but can't actually access the data i.e. I get lines like: [8x1 double] but never the actual content. What am I doing wrong? Here's an example:

filename = 'efhk_weather_data_14_15.csv';
delimiterIn = ',';
headerlinesIn = 1;
A = importdata(filename,delimiterIn,headerlinesIn);
A

As a result I get the text: A =

        data: [398x1 double]
    textdata: {399x23 cell}

Thanks a lot!

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Stephen23 2017-5-29

编辑：Stephen23 2017-5-29

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@Mak: that is the data. To prevent printing masses of unreadable text MATLAB conveniently does not display non-scalar arrays within container variables. But your data is most certainly there.

"but can't actually access the data": it is easy to access it, e.g.:

A.data(1) % the first element in |data|

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