Monthly archives: December, 2017

How to start with Python

When it comes to learning an object-oriented programming language, you might consider starting with either Python or Java. While Python can be more user-friendly than Java, as it has a more intuitive coding style, both languages do have their unique advantages for developers and end users. However, if you are just beginning your path towards …

Variables

Variables While a “variable” in algebra really just means one thing–an unknown value–you’ll come across dozens of types of variables in statistics. Some are used more than others. For example, you’ll be much more likely to come across continuous variables than you would dummy variables. Click on a variable name to learn more about that …

Mutable vs immutable

Mutable and immutable are English words meaning “can change” and “cannot change” respectively. The meaning of the words is the same in the IT context; i.e. a mutable string can be changed, and an immutable string cannot be changed Python code:

Variance-covariance-Coorelation

Variance: It is the expectation of the squared deviation of a random variable from its mean. In other words, it measures how far a set of (random) numbers are spread out from their average value. Mathematically, Uses: Variance analysis, also described as analysis of variance or ANOVA, involves assessing the difference between two figures. Covariance: It provides the measure of the strength of the correlation between …