At the heart of regular expressions are atoms and atom modifiers. In this video, you explore how to define an atom and how to modify that atom.
- [Narrator] We will be expanding on our knowledge…of regular expressions in this video by discussing the atom.…In this video, we will cover the concept of an atom.…An atom is a single expression,…such as a character or the dot,…or an expression that has been defined using parentheses…or, as we will see in a future video, the character class.…We will also introduce atom modifiers.…The idea is that you can take any atom…and then modify it using a modifier.…I'm back in my virtual machine,…I have my RegexLearning notebook up from the last video.…
Let's begin.…An atom is a single character…or an expression that has been defined using parentheses…or as a character class.…Imagine that you have a string representing a date,…in the year, month, day separated by dashes format,…and you wish to verify that this date…is in the 1900s or the 2000s.…So let's say that we have a date of 1969,…July 20th,…and we wish to verify that this date…is in either the 1900s or the 2000s.…
We could craft a regular expression based on an atom…
Note: This course was created by Packt Publishing. We are pleased to host this training in our library.
- Data ranges, means, and medians
- Standard deviation
- SQLite3 command line
- Slices of data
- Regular expressions
- Atoms and modifiers
- Character classes
- Line plots of a single variable
- Plotting a moving average
- Feature scaling
- Scatter plots
- Normal distribution
- Kernel density estimation (KDE)
Skill Level Intermediate
NumPy Data Science Essential Trainingwith Charles Kelly3h 54m Intermediate
SQL: Data Reporting and Analysiswith Emma Saunders2h 16m Intermediate
1. Descriptive Statistics
3. Regular Expressions
5. Kernel Density Estimation
6. Course Review
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