error with Input data sizes in using sim

1 次查看（过去 30 天）

显示更早的评论

arash rad 2022-10-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1821140-error-with-input-data-sizes-in-using-sim

评论： arash rad 2022-10-11

在 MATLAB Online 中打开

Hi i write this code

but i have a problem when i use sim it has an error that "Input data sizes do not match net.inputs{1}.size."

I am new to ANN and i don't know what should i do

clc;clear all ; close all 
%% Import Data
filename = 'zafar_queue.csv'; % abc = name of data file
flow_data = csv2struct(filename);
%% Variables
Y = flow_data.nVehContrib;
data = Y';
periods = flow_data.begin;
dates = seconds(periods);
trn = floor(0.95*(length(data)));
data_train = data(1:trn);
data_test = data(trn+1:end);
trnX = data_train(1:end);
trnY = data_train(1:end);
trndates = dates(1:trn);
 testX =  data_test(1:end);
testY = data_test(1:end);
testdates = dates(trn+1:end);
%% Neural (Model)
net = newfit(trnX',trnY',30);
[net,tr] = train(net, trnX', trnY');
%% Forecast and error
load_forecast = sim(net,testX)';
% err = testY - load_forecast;
% errp = (abs(err)./testY)*100;
% 
% mae = mean(testY, load_forecast);
% mape = mean(errp);
%% Figures
h2 = figure;
plot(testY,'DisplayName','testY');hold on;plot(load_forecast,'DisplayName','forecast');hold off;
ylabel('Load');
h3 = figure;
plot(testdates, testY - load_forecast);
xlabel('Date'); ylabel('Error');