A matrix is a convenient way to store an array of numbers. However, often you need to extract certain elements from a matrix. The SAS/IML language supports two ways to extract elements: by using subscripts or by using indices. Use subscripts when you are extracting a rectangular portion of a
You could argue that it’s misguided for someone like me to say data science doesn't have to be difficult. After all, I’ve been in the industry for many years and should have a few tricks up my sleeve for dealing with data. But with the latest data visualisation technology –
As consumers have moved to digital channels and digital interactions, competition for the hotel consumer has increased dramatically. Now, hotels not only compete with each other, but also with third-party online distributors, and even new disruptors from the sharing economy like AirBnB. However, hotels have one advantage that these other
