R for Beginners

所在平台: Udemy

课程主页: https://www.udemy.com/course/r-for-beginners/

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课程简介

Coursera 课程“R for Beginners”学习总结 本课程面向希望开启数据科学职业生涯或业余时间进行数据分析的用户。 课程将引导您学习 R 语言,这是一种强大的编程语言,涵盖数据处理的各个方面,包括导入、导出、清理、合并、转换、分析、可视化和提取洞察。 **课程主要内容:** * **R 和 RStudio 的安装与基本设置:** * 如何安装 R 语言环境。 * 如何安装 R 集成开发环境 (IDE) RStudio。 * 创建第一个 R 脚本和 R 项目文件夹。 * 安装和使用 R 包及其提供的函数。 * **R 数据结构:** * 区分不同的 R 数据结构。 * 使用内置函数操作数据结构(重塑、访问元素、转换)。 * 从多种来源导入数据到 R。 * 将 R 对象导出到不同的数据源。 * **R 编程基础:** * 掌握循环(loops)。 * 学习条件语句(conditional statements)。 * 创建自定义函数。 * 通过向量化(vectorization)优化代码。 * **数据可视化:** * 学习构建各种图表,包括散点图、折线图、直方图、箱线图、条形图和马赛克图。 * 修改 R 的默认图形参数以创建美观的图形。 * 将图形导出为适合共享的格式。 **课程结构与实践:** * **章节练习:** 每节课程都包含与该节主题相关的练习,通常从简短的介绍开始,然后是编码实践。 * **章节作业:** 每节课程结束时都有作业,用于测试您在该节中学到的技能。 * **模拟项目(最后两项作业):** 您将编写代码构建模拟环境,执行模拟并使用可视化技术呈现结果。 本课程旨在为您打下坚实的 R 语言基础,帮助您有效率地处理和分析数据,并通过数据可视化讲述引人入胜的故事。

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课程详情

Are you one of the people that would like to start a data science career or are you just fond of using data for data analysis in your spare time or for your job? Do you use spreadsheets for data cleaning, wrangling, visualization, and data analysis? I think it is time to enhance your hobby or your career path with learning adequate skills such as R.R is s a programming language that enables all essential steps when you are dealing with data like:importing, exporting, cleaning, merging, transforming, analyzing, visualizing, and extracting insights from the data.Originally R began as a free software environment for statistical computing with graphics supported. Over the years with the rapid development of computing power and the need for tools used for mining and analyzing tons of data that are being generated on every step of our lives, R has emerged into something much greater than its original laid path. Nowadays the R community is vast, every day thousands of people start learning R, and every day new R's libraries are being made and released to the world. These libraries solve different users' needs because they provide different functions for dealing with all kinds of data.If you are still not convinced to join me on a journey where foundations for your R skills will be laid, please bear with me a bit more. In this R for Beginners course, you will dive into essential aspects of the language that will help you escalate your learning curve. Course first gently touches the basics like:how to install R and how to install R's Integrated Development Environment (IDE) RStudio,then you will learn how to create your first R script and R project folder,R project folder will be your baseline folder where all your scripts and assignments will be saved,you will learn how to install different R packages and how to use functions provided with each package.After these first steps, you will dive into sections where all major R data structures are presented. You will be able to:differentiate among each data structure,use built-in functions to manipulate data structures,reshape, access elements, and convert R objects,import data from many different sources into R's workspace andexport R objects to different data sources.When you will have a grasp of what R is capable of, a section devoted to programming elements will guide you through essential steps for writing a programming code that can execute repetitive tasks. Here you will master:your first loops, conditional statements, your custom made functions, and you will be able to optimize your code using vectorization.It is said that a picture can tell an observer a powerful story and holds a stronger message than a thousand words combined. In the final section of this course, the greatest R's power is revealed, the power to tell the story by using data visualization. Here you will master how to build:scatterplots,line charts,histograms,box plots,bar charts,mosaic plots,how to alter R's default graphical parameters to make beautiful figures,and how to export a figure from R to a proper format for further sharing with your colleagues.If you are still not convinced to start learning R, I will share with you how the course is structured: Each section holds separate exercises covering learning material that is related to the section's topic. Normally each exercise begins with a short intro that provides a basic understanding of the topic, then a coding exercise is presented. During coding exercise, you will write the R code for executing given tasks. At the end of each section, an assignment is presented.Each assignment tests the skills you have learned during a given section. In the last two assignments, you will write a code to build a simulation environment where you will execute the simulation and present the results with proper visualization techniques.Do not lose more time and please enroll in the course today. I guarantee you will learn a lot and you will enjoy the learning process.

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