DataFramed is Back!

GROUP BY and HAVING Clause in SQL. Python time.sleep() Function. Machine Learning, Sentiment Analysis, Data Visualization with Matplotlib. And much more!  [DataCamp](  ISSUE #81 — FEBRUARY 5, 2019  Hi there - in this week's newsletter you'll find new tutorials on the Python time.sleep() function and the GROUP BY and HAVING clauses in SQL. Also, articles on machine learning, sentiment analysis, data visualization with matplotlib, and much more!  Podcast  [DataFramed by DataCamp] Inclusivity and Data Science Hugo speaks with Brandeis Marshall to discuss the biggest barriers to entry for people of color in data science, initiatives that currently exist and what we as a community can do to be as diverse and inclusive as possible. [Listen Now](  Community Top Posts  [1]( [Cross Validation In Machine Learning Trading Models](  MACHINE LEARNING  |  Posted by virajb  [Upvotes]( 18 Learn how to cross-validate your trading model to determine whether it is a good predictor in deciding to buy and/or sell an investment.  [2]( [Using Sentiment Analysis To Trade Equities](  FINANCE  |  Posted by virajb  [Upvotes]( 16 An effective way to assess the market sentiment is analyzing the primary source of information that people use, the news. This article explains how you can use sentiment analysis to trade equities.  [3]( [Data Visualization with Matplotlib](  DATA VISUALIZATION  |  Posted by rohitmidha23  [Upvotes]( 8 This article introduces not only what matplotlib is used for but also how to use it.  [4]( [2019 Analytics & Data Science Hiring Survey Results](  CAREERS  |  Posted by lindaburtch  [Upvotes]( 8 This article summarizes a survey of data science and analytics hiring managers that describes their staffing plans for the first half of 2019.  [5]( [Python time.sleep() Function](  PYTHON  |  Posted by cjsejal  [Upvotes]( 7 In this tutorial, you'll learn how the time.sleep() function operates and how to apply it. The function allows you to introduce a delay in the execution of your program.  [6]( [GROUP BY and HAVING Clause in SQL](  SQL  |  Posted by avinashnvln8  [Upvotes]( 6 In this tutorial, you will learn about the GROUP BY and HAVING clauses and review examples of how to apply them.   [DataCamp Community]( BY THE COMMUNITY, FOR THE COMMUNITY [Discover](  That's all for now. Have a great week!   [DataCamp](  DataCamp Inc. | 350 Fifth Avenue | Suite 7730 | New York, NY 10118  [Facebook]( [Twitter]( [LinkedIn]( [Instagram]( [YouTube](  [Download on the App Store]( [Get it on Google Play](  [Unsubscribe]( Â