Python Iterables – Comprehensions

Here we come with another challenging aspect about Python and its goodies. I have a lot of material in here¬†and I have to structure it, both in my mind and blog. ūüėÄ Therefore, today shortlist: List Comprehensions Set Comprehensions Dictionary

Tagged with: , , , , , , , ,
Posted in Little Python

Handling exceptions (2)

As I have promised, here I am with the second posting about handling exceptions. Honestly, neither do I expected for this to happen so soon. ūüėÄ If you have not read the¬†Handling exceptions (1), maybe it would be a good

Tagged with: , , , , , , , , , , , , , ,
Posted in Little Python

Handling exceptions (1)

I have to admit, this is one of the most challenging topics which I have approached, until now… ūüôā So… I decided to split it into two postings. In the first one, we will have a look over: try statement,

Tagged with: , , , , , , , , , ,
Posted in Little Python

Modularity

I called this posting simply –¬†Modularity.¬†I promised myself that I shall be very clear and concise around¬†this concept, trying to follow, as well as my not-so-easy-to-understand nature permits me, the KISS¬†principle. ūüėÄ Scraping the internet in order to get a

Tagged with: , , , , , , , ,
Posted in Little Python

Data Science Festival – August meetup @Google

On Tuesday, August 23rd I attended for the second time a Data Science Festival meetup. I must admit, it was even better than the first one. The meetup was hosted by Google Campus London. Thus, I found out about the rainy Google

Tagged with: , , , , ,
Posted in Conferences

Logistic Regression (1)

Nowadays, logistic regression is one of the most popular and most widely used classification algorithm. Here are some classification examples when logistic regression can help us: Email: Spam/Not Spam? Online Transactions: Fraudulent (Yes/No)? Tumor: Malignant/Benign?

Tagged with: , , , , , ,
Posted in Coursera

Normal equation and non-invertibility

Normal equation: What if XTX is non-invertible?¬†(singular/degenerate) R: ginv(X’*X)*X’y from {MASS} Octave: pinv(X’*X)*X’y

Tagged with: , , , , , , , ,
Posted in Coursera