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How to use webread to download numerical data

Asked by David Koenig on 13 Aug 2018 at 0:32
Latest activity Commented on by Christian Heigele on 14 Aug 2018 at 7:07

Hello. I have data in the form of .mat files in a folder in my Boxnet account. I would like to use a Matlab script to read those .mat files. One of those files is A0#.mat. When I use InternetExplorer to open my Boxnet folder I see

https://app.box.com/folder/3917214121  

so I assume that is the link to the folder containing A0#.mat.

I have tried

url='https://app.box.com/folder/3917214121';
webread(url);

which does not give me an error but it also does not give any data.

I have tried

url='https://app.box.com/folder/3917214121/A0#.mat';
webread(url);

which gives me an error. Could someone suggest what I am doing incorrectly. Thanks.

  2 Comments

I am still trying to access data in a Boxnet folder. I notice in the "help webread" example there is the following:

api = 'http://climatedataapi.worldbank.org/climateweb/rest/v1/';
  url = [api 'country/cru/tas/year/USA'];

When I run the example, it works but when I try to use Internet Explorer to go directly to http://climatedataapi.worldbank.org/climateweb/rest/v1/

I get a "not found" error. Therefore, could someone explain what 'country/cru/tas/year/USA' does or what it is?

Thanks.

With [api 'string'] you are concatting the two strings into:

http://climatedataapi.worldbank.org/climateweb/rest/v1/country/cru/tas/year/USA

This address is valid and a `webread('http://climatedataapi.worldbank.org/climateweb/rest/v1/country/cru/tas/year/USA')` should return you a 112x1 struct.

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1 Answer

Answer by Christian Heigele on 13 Aug 2018 at 8:20
 Accepted Answer

Most likely your missing your credentials:

options = weboptions('Username','jdoe','Password','mypassword'); webread(url, options);

See https://ch.mathworks.com/help/matlab/ref/weboptions.html for more details.

  1 Comment

Christian, thanks for your answer. I tried it and it does not work.

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