135 lines
6.4 KiB
Python
135 lines
6.4 KiB
Python
import Ui_MainWindow
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from PyQt5.QtCore import QFile, QFileInfo, pyqtSlot, pyqtSignal
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from PyQt5 import QtGui, QtWidgets, QtCore
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from PyQt5.QtWidgets import QPushButton, QTableWidgetItem, QInputDialog, QLabel
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from PyQt5.QtGui import QIcon, QPixmap
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from data_set_read import Data_Read
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import pandas as pd
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import openpyxl as pyx
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from libdataanalysis.LinearRegression.linear_regression import LinearRegression
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class MainWindows:
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def __init__(self) -> None:
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self.MainWindow = QtWidgets.QMainWindow()
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self.ui = Ui_MainWindow.Ui_MainWindow()
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self.ui.setupUi(self.MainWindow)
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self.window_ui_init()
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self.file_object_init()
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self.head_num = 10
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def window_ui_init(self):
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self.MainWindow.setWindowTitle("Data Analysis By Python")
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self.MainWindow.setWindowIcon(QIcon(QPixmap(":/src/image/icon.jpg")))
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self.ui.progressBar_linear_regression.setValue(0)
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self.statusLable = QLabel("准备完成！")
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self.ui.statusbar.addWidget(self.statusLable, 1)
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def file_object_init(self):
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self.ui.pushButton_filepath.clicked.connect(self.pushButton_filepath_clicked)
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self.ui.pushButton_filepath_clear.clicked.connect(self.pushButton_filepath_clear_clicked)
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self.ui.pushButton_linear_regression.clicked.connect(lambda checked: self.ui.stackedWidget.setCurrentIndex(0))
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self.ui.pushButton_Kmeans.clicked.connect(lambda checked: self.ui.stackedWidget.setCurrentIndex(1))
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self.ui.actionNumber_Head.triggered.connect(self.action_Number_Head_triggered)
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self.ui.pushButton_linear_regression_begin.clicked.connect(self.pushButton_linear_regression_begin_clicked)
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def pushButton_filepath_clicked(self):
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file_path = QtWidgets.QFileDialog.getOpenFileName(self.MainWindow, "Open File", ".", "All Files(*);;csv Files(*.csv);;Old Excel Files(*.xls);;New Excel Files(*.xlsx)")
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if file_path[0] is None:
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return
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self.file_path = file_path[0]
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info = QFileInfo(file_path[0])
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suffix = info.suffix()
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if suffix == "csv":
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self.data_read = Data_Read(file_path[0], suffix)
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self.ui.lineEdit_filepath.setText(file_path[0])
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elif suffix == "xls" or suffix == "xlsx":
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self.data_read = Data_Read(file_path[0], suffix)
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self.ui.lineEdit_filepath.setText(file_path[0])
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if self.ui.stackedWidget.currentIndex() == 0:
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self.tableWidget_linear_regression_show()
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def tableWidget_linear_regression_show(self):
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self.ui.tableWidget_linear_regression.clear()
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data_file = QFileInfo(self.ui.lineEdit_filepath.text())
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suffix = data_file.suffix()
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if suffix == "csv":
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self.set_csv_headers(data_file.absoluteFilePath())
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elif suffix == "xlsx" or suffix == "xls":
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self.set_excel_headers(data_file.absoluteFilePath())
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def set_excel_headers(self, file_path):
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wb = pyx.load_workbook(file_path)
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sheet = wb.active
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self.ui.tableWidget_linear_regression.setRowCount(self.head_num)
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self.ui.tableWidget_linear_regression.setColumnCount(sheet.max_column)
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row_count = 0
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if sheet.max_row < self.head_num:
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max_row = sheet.max_row
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else:
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max_row = self.head_num
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for row in sheet.iter_rows(min_row=1, max_row=max_row, max_col=sheet.max_column, values_only=True):
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for col, data in enumerate(row, start=0):
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item = QTableWidgetItem(str(data))
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self.ui.tableWidget_linear_regression.setItem(row_count, col, item)
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row_count += 1
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wb.close()
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self.statusLable.setText("加载完成！")
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def set_csv_headers(self, file_path):
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with open(file_path, "r") as file:
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for i in range(0, self.head_num):
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if i == 0:
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line = file.readline()
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line_stripped = line.rstrip()
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data_list = line_stripped.split(",")
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self.ui.tableWidget_linear_regression.setRowCount(self.head_num)
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self.ui.tableWidget_linear_regression.setColumnCount(len(data_list))
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for j in range(0, len(data_list)):
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item = QTableWidgetItem(str(data_list[j]))
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self.ui.tableWidget_linear_regression.setItem(i, j, item)
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else:
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line = file.readline()
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line_stripped = line.rstrip()
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data_list = line_stripped.split(",")
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for j in range(0, len(data_list)):
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item = QTableWidgetItem(str(data_list[j]))
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self.ui.tableWidget_linear_regression.setItem(i, j, item)
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file.close()
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self.statusLable.setText("加载完成！")
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def pushButton_filepath_clear_clicked(self):
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self.ui.lineEdit_filepath.clear()
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def action_Number_Head_triggered(self):
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nb_head = QtWidgets.QInputDialog.getInt(self.MainWindow, "Head Number", "设置头行数", 10, 1, 20, 1)
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if nb_head[1] == True:
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self.head_num = nb_head[0]
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def pushButton_linear_regression_begin_clicked(self):
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if self.ui.lineEdit_linear_regression_original.text is None or self.ui.lineEdit_linear_regression_target is None:
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self.ui.statusbar.s
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info = QFileInfo(self.file_path)
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suffix = info.suffix()
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if suffix == "csv":
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data = pd.read_csv(self.file_path)
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elif suffix == "xls" or suffix == "xlsx":
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data = pd.read_excel(self.file_path)
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x = data[self.ui.lineEdit_linear_regression_original.text().split(",")].values
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y = data[self.ui.lineEdit_linear_regression_target.text()].values
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num_iterations = self.ui.spinBox_linear_regression_iter.value()
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learning_rate = self.ui.doubleSpinBox_linear_regression_rate.value()
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polynomial_degress = self.ui.spinBox_linear_regression_ploynmial.value()
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sinusoid_degress = self.ui.spinBox_linear_regression_sinusoid.value()
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normalize_data = True
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linear_regression = LinearRegression(x, y, polynomial_degress, sinusoid_degress, normalize_data)
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(theta, cost_history) = linear_regression.train(
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learning_rate,
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num_iterations
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)
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msg = "开始损失: {:.2f},结束损失: {:.2f}".format(cost_history[0], cost_history[-1])
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self.statusLable.setText(msg) |