Sunday, April 18, 2021
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This will teach new ways of understanding how things work.

Python Tuples 

YouTube channel lists – Tuples

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Estimated reading time: 1 minute

How to use python Tuples is very similar to Python Lists on our YouTube channel. Like lists tuples can store data. The significant difference is that you cannot change tuples at all; they are “Immutable”. The importance of this when using Tuples is it could impact how you structure your code, especially if you are trying to pass values within it.

Some things to consider in order to understand regards tuples:

(A)When you are using them are enclosed within (), lists have []

(B) There is no ability to change them.

(C) As they cannot be changed and can be considered static data holders, you could use them as a lookup. An example could be something that can only have a set amount of values associated with it.

Below is our list for Tuples from our YouTube channel, if you like what we do, please subscribe! Regular updates to all our lists shall be happening, so subscribing an excellent way to keep in touch 🙂

Thanks!

Data Analytics Ireland

Python Functions Python Tutorial 

how to pass data between functions

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Estimated reading time: 2 minutes

In this python program, we are learning how to pass data between functions. 

In light of this, you will use and see functions in many programming languages and data analytics projects.

As a result, the ability to understand them has become important.

Functions serve a number of benefits:

  • You can pass a number of arguments to them to be processed.
  • It reduces repetition as the function can be called from many places with a program.
  • They are easily identified by using the def keyword in your code.
  • A return statement can give you the output of the function to show on the screen or pass to another function.

It compliments r-tutorial-how-to-pass-data-between-functions/  as a result this is a handy bit of functionality used widely across many different programming languages.

Below is a video that will help to give an understanding of how to pass data between functions when trying to learn python:

 

In many of the Data Analytics Ireland    YouTube channel videos, there is an emphasis on creating content that eliminates duplication of code within the code.

We have also started incorporating classes as well and you can see here How to create a class in Python, a tutorial on how to create one.

Classes by their nature have methods, which are called on the objects that created them ( the class), and can alter their state, whereas a function will run and just return a value.

It is important to understand the distinction as while the two will most likely achieve the same outcome, it is the ability to change the class state that will differentiate the two.

Python Lists 

YouTube channel lists – Python Lists

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Estimated reading time: 2 minutes

Python lists are used extensively in projects, as a result it is important to understand their structure.

Some of the things they can be used for:

  1. Lookup values for comparisons.
  2. Passing data to them to store to be referenced elsewhere.
  3. As part of a loop, store values that have been found through the loop logic.

With methods are associated with lists?

  1. Append – Add values to the end of the list
  2. Extend – adds values from an iterable object to the end of the list.
  3. Insert – You can insert an item to a certain position in a list.
  4. Remove – Remove the first value in a list that has a value that was asked to be looked for.
  5. Pop – This also removes a value at a certain position and returns, consequently if no position is specified then it removes the last item and returns it.
  6. Clear – Removes all items from the list.
  7. Index – returns the index value of the first item found that was asked to be searched for.
  8. Count – returns the number of times an item that was searched or was found in a list.
  9. Sort – Sorts the items in the list.
  10. Reverse – This reverses the items in the list.
  11. Copy – This makes a copy of the list.

What are the properties of a list?

The data type has the following attributes, that make it really useful for a vast array of scenarios:

  • They are ordered – Whatever order the list is a unique characteristic of the list, furthermore changing the order makes it a different list.
  • You can use their index to access the value.
  • They are mutable, meaning you can apply any of the above methods on them.
  • They can contain strings, integers etc, accordingly, there is no restriction on what can be in the list.

Check out the below video playlist from our YouTube channel, they will help explain more about lists:

On this website you can also read about how to compare two lists in Python or how to sort lists using rstudio in addition to this blog post.

We hope you enjoy it!

Data Analytics Ireland

Python Dataframe 

YouTube channel lists – Python DataFrames

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Estimated reading time: 1 minute

Welcome to this new blogging website! We are all about data analytics to have a look at this page here About Data Analytics Ireland

To keep it simple we have created some lists here and on our YouTube Channel

As we progress over the next while, the website will be updated as we go along, and while there may be a  lot of video content, we will look to mix it up with different formats.

We have started with Python Data frames :

We hope you enjoy and don’t forget if you like what we are doing subscribe to our channel!

Data Analytics Ireland