Error in esig call

I am trying to esablish an eSignal Desktop API connection using the esig function. I am calling it exactly as specified in the user guide:

E = esig('mylogin')

I'm getting the following error returned:

??? Undefined variable "IESignal" or class "IESignal.HooksClass".

Error in ==> esig.esig>esig.esig at 33 e.eSignal = IESignal.HooksClass;

What does this mean?

Answer 1

[Sean de Wolski]

'mylogin' is a 1x7 string; not anything else. I don't have the esig function but I assume it expects something of class 'IESignal.HooksClass' not a string. Perhaps:

esig(mylogin);

?

[Sean]

No, it is expecting a string.

Here is the method definition for esig.

function e = esig(user)

%ESIG eSignal Desktop API connection.

% E = ESIG(USER) creates a eSignal Desktop API connection given the

% username USER.

%

% See also CLOSE, GETDATA, HISTORY, TIMESERIES.

%Enable feature

esig.dffeature;

%Create .NET object and set application user id

e.eSignal = IESignal.HooksClass;

e.eSignal.SetApplication(user);

%Verify that user id is valid, data manager may need to catch up at

%first connection

if ~e.eSignal.IsEntitled

pause(10)

if ~e.eSignal.IsEntitled

error('datafeed:esig:notEntitled',char(e.eSignal.GetIsEntitledError))

end

end

end %end esig constructor

Answer 2

[pangyuteng]

Hi Sean, You will need to contact eSignal to add the "desktop API service", note that this service will require additional service charge per month.