Data Analytics and Video Tutorials
This will help with examples to explain the different python techniques available to solve your coding questions.
To start off passing by reference basically means that you are telling the program you have written to pass a variable to a function. When passing arguments to a function, it is important to understand the meanings first. As a result, when you pass by reference to a function, the variable data gets processed and…
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As part of our ongoing series about Python Interview questions, we discussed how you would create an empty dictionary. In this posting, we are going to go through the different ways you could add values to your dictionary. In the below code, we have created an empty dictionary for you. So as we go down…
In our first video on python interview questions we discussed some of the high-level questions you may be asked in an interview. In this post, we will discuss interview questions about python dictionaries. So what are Python dictionaries and their properties? First of all, they are mutable, meaning they can be changed, please read on…
So you have landed an interview and worked hard at upskilling your Python knowledge. There are going to be some questions about Python and the different aspects of it that you will need to be able to talk about that are not all coding! Here we discuss some of the key elements that you should…
Are you looking to learn python, and in the process coming across this error and trying to understand why it occurs? In essence, this usually occurs when you have more than one data frames and in the process of writing your program you are trying to use the data frames and their data, but there…
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In our recent blog posting How to Pass a Javascript Variable to Python using JSON, we demonstrated how to easily use AJAX to pass whatever data you wanted and then manipulate it with Python. In this blog posting, we are going to show how to do this the other way around. The scenario is that…
Python arrays are used to manage how data is analyzed and have the data in a structured form for the data analyst or data scientist to use. What is an Array? An array has the following properties: What are the differences between arrays and lists? For the most part arrays and lists are the same,…
Are you working on a data analytics project where you need to feed your data to a location that is able to process an XML file? The ability to get your data into a structured format like XML has many benefits: (A) You can transfer the data to a web service for processing. (B) Multiple…
Read More “How to Create an XML file from Excel using Python” »
Pandas groupby using column values In this second video how to groupby using pandas and as part of expanding the data analytics information of this website, we are looking to explain how you can use a groupby selection but only using the column values and not the column names. Below we import our data into a…
Read More “Python Tutorial: Pandas groupby columns ( video 2)” »
In this first video about pandas groupby and as part of expanding the data analytics information of this website, we are looking to explain how you can use a groupby selection to sort your data into similar datasets better so they can be better analysed. In the video below, we import our data into a…