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Quandl's Matlab module
i am running the below query in matlab and i got below error. what is wrong.
data = Quandl.get('NSE/OIL');
??? Undefined variable "urlread2" or class "urlread2.urlread2".
Error in ==> api at 25
[response, extras] = urlread2.urlread2(url);
Error in ==> get at 124
csv = Quandl.api(path, 'params', params);
When more than 10000 rows are requested it seems that the extra field Cursor_ID is generated, and this error appear
'Brace indexing is not supported for variables of this type',
and this is understandable because he expects a cell array but a simple char is generated.
Then how to deal with these kind of situations? I think I should use the Cursor_ID to get the remaining part but I don't know how and the code does not seem to deal with these kind of request
serach --> search
Quandl.serach('crude oil', 'results', 10, 'page', 3); (in readme)
Very cool package!
Hi,
Thanks for the great package!
Unfortunately, I found Quandl API is not fully supported.
Official documentation https://www.quandl.com/docs/api says:
Request a specific column by passing the
column_index=n
parameter. Column0
is the date column and is always returned. Data begins at column1
.
At the moment, there is no way to use parameter column_index
in the request.
This seems to be a real problem, because performing something like
usd = Quandl.get( ...
'CURRFX/USDRUB', 'start_date',2009-01-01,'end_date',2010-01-01,'type','ts');
returns a really messy cell array of individual tscollection
objects.
Not really sure, maybe this is another one bug.
Hello,
After downloading both +Quandl and +urlread2 to my current folder I am getting an error message when trying to retrieve data. Any advice if this is an issue with the Matlab package for quandl, or is there an issue with connecting from my side?
Matlab:
Quandl.api_key('XXXXX');
data = Quandl.get('NSE/OIL');
Response stream is undefined
below is a Java Error dump (truncated):
Error using urlread2.urlread2 (line 217)
Java exception occurred:
java.net.ConnectException: Connection timed out: connect
Error in Quandl.api (line 38)
[response, extras] = urlread2.urlread2(url, 'GET', '', headers);
Error in Quandl.get (line 124)
csv = Quandl.api(path, 'params', params);
Hi,
Is there a search function coming anytime soon (similar to the search function of the Python package)?
This could be very useful because current package requires that users know the exact code that Quandl uses for a specific ticker.
Thanks,
Matan
MATLAB 2016b Windows 10 64bit
data = Quandl.get('NSE/OIL');
Response stream is undefined
below is a Java Error dump (truncated):
Error using urlread2.urlread2 (line 217)
Java exception occurred:
java.io.IOException: Server returned HTTP response code: 400 for URL:
https://www.quandl.com/api/v3/datasets/NSE/OIL.csv?&api_key=
(mykey)&auth_token= (mytoken
)_&sort_order=desc
Error in Quandl.api (line 37)
[response, extras] = urlread2.urlread2(url, 'GET', '', headers);
Error in Quandl.get (line 124)
csv = Quandl.api(path, 'params', params);
qopts.columns options for accessing selected columns is not supporting.
as documetns says
data = Quandl.datatable('ZACKS/EE', 'ticker', 'AAPL', 'qopts.columns', {'per_end_date', 'per_type', 'eps_mean_est'}), but MATLAB throws error "Unmatched parameter name 'qopts.columns' must be a string scalar or character vector that can represent a field name ".
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