James – Page 9 – Data Science Review

How Is Your Grasp on Hypothesis Testing?

November 28, 2018
/ Statistics
/ By James

I hate to be the bearer of bad news. But...Do you remember that statistics class you hated in college? Well, you'll need to dust the cobwebs off that textbook. Data science practitioners need to know statistics!The

Make Your Data Definitions for Power BI Work Correctly

November 2, 2018
/ Business Intelligence
/ By James

Power BI is a wonderful product released by Microsoft. It gives business owners the ability to create high-level reports and analysis for measuring how the business is doing. But, to optimize the software,

How to Find an API

October 24, 2018
/ Data Sources
/ By James

Have you ever tried to create a web scraping application before? Or, perhaps you have used one online that someone else created? If you have coded web scraper before, you know what a pain in

One Trick when Learning Data Science

October 24, 2018
/ Data Science Skills
/ By James

Data science is undoubtedly a vast field. Stating that you are a data scientist will mean different things to different people. Then, how do you know what to concentrate on? That is the topic of discussion

Why You Should Learn Power BI

October 22, 2018
/ Business Intelligence
/ By James

What if you could at a glance, look at a report about your business and know exactly how it's doing? What if you needed more information about a segment of your business and you just click on the line

Data Sources

September 27, 2018
/ Data Sources
/ By James

Helpful Data SourcesUse resources (below) to find datasets or data sources. The plan is to update this whenever I come across new sources. Be sure to check back or bookmark the page.Please Note: Use these

Could It Finally Be Time to Learn the Julia Language?

September 27, 2018
/ Programming Languages
/ By James

If you've been working in the data science field for any length of time, you know there are two dominant languages that are used for this purpose: R and Python. The choice between the two has been largely

Case Study: Does the Size of Diamonds Affect Its Price?

August 25, 2018
/ Tutorials
/ By James

Case Study on the Use of Simple Linear Regression James Cochrane August 24, 2018 If you have ever shopped for a diamond you already know the answer to the question this case study is posing. Try to

Help! I’m Becoming an R Snob!

August 2, 2018
/ R Programming
/ By James

I love the R language. Being that I am a computer programmer by trade, this is a bit of an anomaly. Most computer programmers would not migrate to the R language naturally. In fact, to us programmers,

Coming to Grips with the Data Frame

December 22, 2017
/ R Programming
/ By James

Data Frames in R Programming LanguageAt some point during your R programming experience, you are going to have to come to grips with the data frame. Of course, people familiar with data frames will

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