Unable to use newpnn command

When I am using the newpnn command as net_1 = newpnn(P,T,0.438644); P and T are the arguments.It is giving this error message

How can I remove this error?

Answer 1

[Meet]

Hi Aritra,

The error message suggests that the input "P" is not in the expected format. To resolve this issue, you can consider the following steps:

1. Ensure that "P" is a Matrix, where each column represents a sample, and each row represents a feature of those samples.
2. Ensure that "T" is also a Matrix, where each column represents to a target class of a sample in "P", and each row represent the corresponding one hot encoding of that class.

Here is an example of the "newpnn" function:

% If you have 3 features and 5 samples
P = [
    0.1, 0.2, 0.3, 0.4, 0.5;
    0.5, 0.4, 0.3, 0.2, 0.1;
    0.2, 0.3, 0.4, 0.5, 0.6
    ];
% If you have 2 classes
% Each column corresponds to the class of the sample in P
T = [
    1, 0, 1, 0, 1;  % Class 1
    0, 1, 0, 1, 0   % Class 2
    ];

% Create the PNN with a specified spread
spread = 0.438644;
net_1 = newpnn(P, T, spread);

For more information on the "newpnn" function, please refer to the following documentation: https://www.mathworks.com/help/deeplearning/ref/newpnn.html