freetechtrainer

A regular expression is a sequence of symbols and characters expressing a string or pattern to be searched for within a longer piece of string...

Sometimes we split one dataset into multiple sets and in the same way we merge multiple datasets into one. As a data scientist these are...

In our day to day life we have to create many models or we have to work with many models. Sometimes we need to reuse...

There are different ways of sampling data. Random sampling is one of the most popular and most easiest way of sampling. But before using the...

What is R? R is a open source programming language and environment for statistical computing which we called data science so far, data analysis, data...

Data analytics is the process of deriving hidden insights as well as drawing conclusions (i.e. descriptive, diagnostic, predictive, prescriptive etc.) about the information they contain...