Upload app.py

app.py

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+import streamlit as st
+import pandas as pd
+import numpy as np
+import torch
+import torch.nn as nn
+import matplotlib.pyplot as plt
+from sklearn.preprocessing import MinMaxScaler
+
+# Cargar los datos de los dos CSV
+file1 = 'PARCIAL-AGUA-_2_.csv'
+file2 = 'PARCIAL-AGUA-_3_.csv'
+
+data1 = pd.read_csv(file1)
+data2 = pd.read_csv(file2)
+
+# Convertir la columna 'FECHA' a objetos datetime y filtrar por años
+data1['FECHA'] = pd.to_datetime(data1['FECHA'])
+data2['FECHA'] = pd.to_datetime(data2['FECHA'])
+
+filtered_data1 = data1[data1['FECHA'].dt.year >= 2007]
+filtered_data2 = data2[data2['FECHA'].dt.year >= 2007]
+
+combined_values = np.concatenate([filtered_data1['VALOR-LS-CF-N'].values, filtered_data2['VALOR-LS-CF-N'].values]).reshape(-1, 1)
+
+scaler = MinMaxScaler()
+scaled_values = scaler.fit_transform(combined_values)
+
+scaled_values1 = scaled_values[:len(filtered_data1)]
+scaled_values2 = scaled_values[len(filtered_data1):]
+
+def sliding_windows(data, seq_length):
+    x, y = [], []
+    for i in range(len(data) - seq_length):
+        x.append(data[i:i + seq_length])
+        y.append(data[i + seq_length])
+    return np.array(x), np.array(y)
+
+seq_length = 4
+x_train, y_train = sliding_windows(scaled_values1, seq_length)
+x_test, y_test = sliding_windows(scaled_values2, seq_length)
+
+trainX = torch.Tensor(x_train)
+trainY = torch.Tensor(y_train)
+testX = torch.Tensor(x_test)
+testY = torch.Tensor(y_test)
+
+class LSTM(nn.Module):
+    def __init__(self, input_size, hidden_size, num_layers, output_size):
+        super(LSTM, self).__init__()
+        self.hidden_size = hidden_size
+        self.num_layers = num_layers
+        self.lstm = nn.LSTM(input_size, hidden_size, num_layers, batch_first=True)
+        self.fc = nn.Linear(hidden_size, output_size)
+
+    def forward(self, x):
+        h0 = torch.zeros(self.num_layers, x.size(0), self.hidden_size)
+        c0 = torch.zeros(self.num_layers, x.size(0), self.hidden_size)
+        out, _ = self.lstm(x, (h0, c0))
+        out = self.fc(out[:, -1, :])
+        return out
+
+st.title('Predicción de Series de Tiempo')
+st.sidebar.title('Parámetros del Modelo')
+
+model_type = st.sidebar.selectbox('Selecciona el modelo', ('LSTM', 'Otro Modelo'))
+num_epochs = st.sidebar.slider('Número de épocas', 100, 500, 200)
+learning_rate = st.sidebar.number_input('Tasa de aprendizaje', 0.001, 0.1, 0.01, 0.001)
+
+if model_type == 'LSTM':
+    input_size = 1
+    hidden_size = 50
+    num_layers = 2
+    output_size = 1
+
+    model = LSTM(input_size, hidden_size, num_layers, output_size)
+
+    criterion = nn.MSELoss()
+    optimizer = torch.optim.Adam(model.parameters(), lr=learning_rate)
+
+    if st.sidebar.button('Entrenar y Predecir'):
+        for epoch in range(num_epochs):
+            model.train()
+            outputs = model(trainX)
+            optimizer.zero_grad()
+            loss = criterion(outputs, trainY)
+            loss.backward()
+            optimizer.step()
+            if (epoch+1) % 100 == 0:
+                st.write(f'Epoch [{epoch+1}/{num_epochs}], Loss: {loss.item():.4f}')
+
+        model.eval()
+        train_predict = model(trainX)
+        test_predict = model(testX)
+
+        train_predict = scaler.inverse_transform(train_predict.detach().numpy().reshape(-1, 1))
+        trainY_plot = scaler.inverse_transform(trainY.numpy().reshape(-1, 1))
+        test_predict = scaler.inverse_transform(test_predict.detach().numpy().reshape(-1, 1))
+        testY_plot = scaler.inverse_transform(testY.numpy().reshape(-1, 1))
+
+        fig, ax = plt.subplots(figsize=(12, 6))
+        ax.plot(filtered_data1['FECHA'].values[seq_length:seq_length+len(trainY)], trainY_plot, label='Datos de entrenamiento')
+        ax.plot(filtered_data1['FECHA'].values[seq_length:seq_length+len(trainY)], train_predict, label='Predicciones de entrenamiento')
+        ax.plot(filtered_data2['FECHA'].values[seq_length:seq_length+len(testY)], testY_plot, label='Datos de prueba')
+        ax.plot(filtered_data2['FECHA'].values[seq_length:seq_length+len(testY)], test_predict, label='Predicciones de prueba')
+        ax.set_xlabel('Fecha')
+        ax.set_ylabel('VALOR-LS-CF-N')
+        ax.set_title('Predicciones con LSTM')
+        ax.legend()
+        ax.grid(True)
+        st.pyplot(fig)