Tag: Python
Top 40 Data Science Interview Questions and Answers
1 – What is F1 score? F1 score is a measure of the accuracy of a model. It is defined as the harmonic mean of precision and recall. F1 score is one of the most popular metrics for assessing how well a machine learning algorithm performs on predicting a target variable. F1 score ranges from…
Read MoreHow to use if else, while and for loops in python?
The if and else clause are used to structure our code with checks for conditions. The if statement is followed by an expression that we use to express a condition, and delimiters the so-called if block. The block is executed if and only if the expression evaluates to True. Example 1: By the way, even…
Read MoreOperations in Python
There are many type of different operations using operators in the language: Identity As we manipulate values (using variable), two values can have the same identity. This can be tested using special built-in function: id(). We use is as the identity comparison operator, and the result here shows that var and the var3 have the…
Read MoreData types in Python
Now let’s discover data types that we can use to manipulate more data and do more things, such as lists, sets, and dictionaries. Lists A list is a sequence of arbitrary objects. You remember we said that strings are a sequence of (text) characters, so some of the things we already seen about strings apply…
Read MorePython Basics
Let’s quickly explore the first tools and basic syntax rules for a beginner to start using Python. But before that, know that when needed, you can find documentation on the Python.org site and many online resources, including sites like StackOverflow. Printing things We use the print() function to print stuff in Python. This is essential…
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