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Lee Baker's Blog (7)

3 Free Data Science eBooks to Add to Your Summer Reading List

If you're a regular visitor to our website you'll know that every month we scour the internet seeking out free eBooks to help you on your educational journey. Well, it has been so popular that we decided to create a regular monthly series here at Data Science Central.



I hope this will prove to be a valuable resource to you that you will visit regularly (and invite your friends too).…

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Added by Lee Baker on July 10, 2017 at 7:00am — 3 Comments

How to Clean Your Data Quickly in 5 Steps

Let’s face it – cleaning data is a waste of time.

If only the data had been collected and entered carefully in the first place, you wouldn’t be faced with days of data cleaning to do. Worse still, your boss probably doesn’t understand why you can’t just do it in a few minutes. After all, you only need to click a few buttons in Excel, don’t you?

Yeah, right…

 

Well, we all hate data cleaning, but if we get organised and learn a few tricks there are ways to…

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Added by Lee Baker on February 8, 2017 at 3:00am — 4 Comments

The 5 Hottest Data Science Blog Posts of the Summer

It’s been a rather quiet summer on Data Science Central with fewer blog posts being published than at other times of the year, but I guess it shouldn’t be too much of a surprise – DSC has had to compete against summer holidays, the Euro 2016 football tournament and the Rio 2016 Olympics.

Of the relatively few that have been published, there have been a few gems. At the time of writing, the 5 blog posts on this list have been read by almost 60,000 of you.

If you haven’t seen any…

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Added by Lee Baker on August 18, 2016 at 5:30am — No Comments

Free Alternatives to Excel for Data Cleaning

Pretty much every data rookie starts with Excel. It is a wonderful program for storing, cleaning and analysing (yes, you read that correctly) your data.

Strictly speaking, Excel isn’t free, but really – who pays for it these days? If you buy a Windows PC or laptop it’ll usually come pre-installed, and if you get a new PC at work your employer will have it pre-installed for you. If you’re prepared to look the other way, there are guys who know guys who can get you a copy that fell off…

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Added by Lee Baker on July 15, 2016 at 6:19am — 14 Comments

Why Good Data Scientists are Worth the Big Bucks

Data scientist is the ‘Sexiest Job of the 21st Century’, so say Thomas Davenport and DJ Patil in their seminal 2012 Harvard Business Review article.

Since then, data scientists have been very much in demand and their wages have soared. Compared to statisticians, computer programmers and AI guys (who are still regarded as geeks), they are extremely well paid.

But…

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Added by Lee Baker on July 5, 2016 at 6:26am — 4 Comments

Statistics is Dead – Long Live Data Science…

I keep hearing Data Scientists say that ‘Statistics is Dead’, and they even have big debates about it attended by the good and great of Data Science. Interestingly, there seem to be very few actual statisticians at these debates.

So why do Data Scientists think that stats is dead? Where does the notion that there is no longer any need for statistical analysis come from? And are they right?

Is statistics dead or is it just pining for…

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Added by Lee Baker on June 23, 2016 at 2:30am — 28 Comments

50 Shades of Grey – The Psychology of a Data Scientist

Unless you’ve recently graduated from one of the new Data Science courses that have been popping up online and in various universities around the world, then becoming a Data Scientist was most likely slightly accidental and was more about the journey than the destination.

 

Here’s my journey. See if you recognise any of it in your own:

I started out as a physicist and had a strong mathematical grounding, but I had a passion for medicine. After completing my bachelor’s…

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Added by Lee Baker on April 19, 2016 at 2:00am — 6 Comments

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