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学生对 Johns Hopkins University 提供的 Getting and Cleaning Data 的评价和反馈

4.5
8,070 个评分

课程概述

Before you can work with data you have to get some. This course will cover the basic ways that data can be obtained. The course will cover obtaining data from the web, from APIs, from databases and from colleagues in various formats. It will also cover the basics of data cleaning and how to make data “tidy”. Tidy data dramatically speed downstream data analysis tasks. The course will also cover the components of a complete data set including raw data, processing instructions, codebooks, and processed data. The course will cover the basics needed for collecting, cleaning, and sharing data....

热门审阅

HS

May 2, 2020

This course provides an introduction of some important concepts and tools on a very important aspect of data science: cleaning and organizing data before any analysis. A must for any data scientist.

BD

Oct 25, 2016

This course is really a challenging and compulsory for any one who wants to be a data scientist or working in any sort of data. It teaches you how to make very palatable data-set fro ma messy data.

筛选依据:

476 - Getting and Cleaning Data 的 500 个评论(共 1,313 个)

创建者 Francisco J G C

Jul 31, 2020

Excellent course with great study material.

创建者 Mckayla H

May 7, 2020

这门课很仔细地介绍了数据获取和清洗的过程,讲解了一些很好用的r包,通俗易懂,卓有启发。

创建者 Yuyang L

Sep 11, 2016

Thanks! I learnt a lot of practical skills/

创建者 Sindre F

Apr 7, 2016

Very useful and relevant knowledge to have!

创建者 anjali s

Oct 5, 2020

very well presented and taught. thank you!

创建者 Ziwen L

Aug 8, 2019

The process of learning is very rewarding.

创建者 lotfi R

Mar 24, 2018

nice course for the cleaning data using R,

创建者 Abhishek B

Dec 19, 2017

Gets you started on basics. Good practice.

创建者 Md G M

Jul 5, 2017

Very descriptive with good study material.

创建者 Light0617

Aug 7, 2016

It taught a lot of tools and introductions

创建者 M M

Jan 27, 2016

One of the best courses for Data sciences!

创建者 Robert J C

Jun 10, 2019

Good to play with R for making tidy data.

创建者 Arushi A

Nov 24, 2017

Amazing course content and assignments :)

创建者 Ravi K

Oct 13, 2016

Nice content and assignment!! Enjoyed it.

创建者 Pengfei L

Jun 1, 2020

A good course for starter of R language;

创建者 Mali N M

Apr 24, 2020

very difficult to solve some assignments

创建者 mandar v

Apr 8, 2020

Great course good for getting introduced

创建者 Neha P

Feb 12, 2020

Good experience with excellent knowledge

创建者 Ramy H

Aug 28, 2017

Excellent delivery of the course content

创建者 Prathamesh

Jun 16, 2017

Course Project was absolutely brilliant!

创建者 Roland P

Nov 11, 2017

Great course for hands-on data munching

创建者 Alejandro C C

Sep 20, 2016

Great way to learn how to optimize data

创建者 Mauricio P

Sep 26, 2017

Good material and excellent exercises.

创建者 Sourav B

Jul 12, 2017

Very important part taught intuitively

创建者 Venkatesh

Jun 30, 2017

Very well designed for beginners in R.