Building an Neural network with multiple inputs
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hi, Matlab Newbie
i have to create an Artificial Neural Network to classify using this datatset https://archive.ics.uci.edu/ml/datasets/breast+cancer+wisconsin+(original)
it take 10 input to one output
this is my code, i keep getting the error of " input and outputs have different samples" i know it is because i have 10 inputs and one 1 input but how can i fix it as i need all the 10 inputs?
close all
clear
clc
opts = detectImportOptions('breast-cancer-wisconsin.data', 'filetype','text');
BCTable = readtable('breast-cancer-wisconsin.data',opts);
InputVariable = table2array(BCTable(:,1:10));
OutputVariable = table2array(BCTable(:,11));
net = feedforwardnet(10, 'trainlm');
net = configure (net, InputVariable,OutputVariable);
[net,tr] = train(net,InputVariable, OutputVariable);
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Image Analyst
2021-1-2
Original question attached, in case he deletes this one also.
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Ameer Hamza
2020-12-29
The 10 in the line
feedforwardnet(10, 'trainlm');
have nothing to do with the number of inputs. You can put any number here. It is the number of hidden neurons in the first layer. The actual issue is the orientation of InputVariable and OutputVariable. MATLAB expects that each column of the input matrix contains a sample, and the number of columns is equal to the total number of samples. Similar is required for the output matrix. However, in your case, the samples are arranged row-wise. Just take the transpose of these matrices.
net = configure (net, InputVariable.',OutputVariable.');
[net,tr] = train(net, InputVariable.', OutputVariable.');
2 个评论
Ameer Hamza
2020-12-29
I am glad to be of help! :)
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