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所在平台: Udemy |
课程主页: https://www.udemy.com/course/econometrics-linear-regression-changing-units-of-measurement/
课程评论：没有评论
**课程名称：** 计量经济学：改变测量单位 **课程概述：** 本计量经济学课程将深入探讨“计量经济学中的缩放——改变测量单位”的概念。假设我们有“体重”和“身高”两个变量，体重以千克为单位，身高以英寸为单位。当您对身高进行体重回归时，估计截距为-79.24，估计斜率为4.16。如果您决定将体重单位从千克更改为磅，或者将身高单位从英寸更改为厘米，那么估计的截距和斜率将如何变化？本课程将为您解答这些问题。 **课程结构：** * **概念梳理：** 快速回顾期望值、协方差和方差的性质，这些是理解课程中数学概念的基础。 * **公式解析：** 梳理相关公式。 * **核心数学：** 讲解改变测量单位对估计截距、斜率、R²、残差和回归标准误（SER）的影响。 * **实践练习：** 提供练习题，帮助您巩固理解。 **课程特色：** * **30天退款保证。** * **问答区提供支持，如果您在学习过程中遇到困难，可以随时提问。** **讲师：** Shubham
This Econometrics course covers the concept of Scaling - Changing Units of Measurement. What is this concept of Scaling? Think of it in this manner: Let's say you are working with 2 variables - Weight and Height, where, Weight is measured in Kilograms and Height is measured in inches. When you run a regression of Weight on Height, you get the estimated intercept to be -79.24 and the estimated slope to be 4.16. Now, if you decide to change the unit of Weight from kilograms to pounds or the unit of Height from inches to centimeter, then how will the estimated intercept and slope change? And that's exactly what you are going to learn in this course!Structure of the course:Quick overview of properties of Expected values, Covariance and Variance. These are the key to understand the maths discussed in this courseQuick look at the formulasAll the math to understand the effect of scaling on estimated intercept, slope, R2, residuals and Standard Error of Regression (SER)Practice questions to test your understandingThis course comes with:A 30 day money-back guaranteeSupport in the Q & A section - ask me if you get stuck!I really hope you enjoy this course!- Shubham
