MATLAB: Do I always get an empty value for the IP and PORT fields when connecting to the FRED servers in Datafeed Toolbox 7.11 (R2010b)

Datafeed Toolbox

When I create a connection to the FRED servers, the IP and PORT fields are empty.

fred
 ans =
      url: '<http://research.stlouisfed.org/fred2/'>
       ip: []
     port: []

Best Answer

The PORT and IPADDRESS inputs are no longer required when connecting to the FRED servers. These are left over inputs from older codes and are present currently only for code compatibility.

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MATLAB: Do I receive a Windows Security Warning popup when I execute MATLABPOOL at the MATLAB command prompt

In order to workaround this behavior you can add ports as exceptions to your Windows Firewall using the following steps.

First, determine which ports need to be added as exceptions to your Windows Firewall settings. Execute the following line of code at the MATLAB command prompt to find out which ports are being used.

dctconfig

For example, when execute this command you will get something similar as follows:

          port: 27372
      hostname: 'COMPUTER'
     pmodeport: 27373

Which means the first port being used is 27372. This port along with the 21 following (27372 to 27393) should be unblocked. Follow the below steps to add these ports to the Window's Firewall exception list

1. Navigate to your Control Panel

2. Click on Network Connections

3. Right click on your Area Connection and select properties

4. Click on the advance tab and then the settings button

5. Click on the ‘Exceptions’ tab of the Windows Firewall settings panel

6. Finally click the ‘Add Port’ button and add all 21 ports to the exception list.

MATLAB: Is there a documentation error in the FFT function in MATLAB 7.11 (R2010b)

This is an error within the documentation in MATLAB for the function FFT. The documentation should read as follows:

w_n = exp(-2*pi*i/N);

The negative sign is missing from the exponential.

Best Answer

Related Solutions

MATLAB: Do I receive a Windows Security Warning popup when I execute MATLABPOOL at the MATLAB command prompt

MATLAB: Is there a documentation error in the FFT function in MATLAB 7.11 (R2010b)

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