Gaelim Holland
Gaelim Holland
Fill Blank Cell with Previous Cell
Excel has a lot of great functions and shortcuts that will make data cleaning and manipulation easier. Not knowing these techniques will add frustration and a lot of time to your current workload and analysis. You can follow the instructions below to figure out how to fill blank cells with previous cell values. Check out […]
How to Become a Data Analyst | Advice from a Senior Data Analyst
Data analysis is among the most in-demand skills in 2021. It is a field with many facets – from working with raw data to uncover actionable insights to knowing how to showcase these in a way that’s easy to consume, data analysis can help any project – big or small.As someone who has worked in […]
Word Frequency with Python
One of the key steps in NLP or Natural Language Process is the ability to count the frequency of the terms used in a text document or table. To achieve this we must tokenize the words so that they represent individual objects that can be counted. There are a great set of libraries that you […]
Python Data Science Interview Questions and Answers
Honestly, knowing Python and knowing how to answer interview questions with Python can be two separate skills. I have bombed interviews due to not explaining my thought process when approaching a problem. Often interviewers are not concerned that you arrive at a perfect answer in the limited time that you are given. They put more […]
Statistical Tables in Power BI with Python
One of the best things about Python is the sheer number of libraries that can easily be used. You can create correlation tables and statistic summary tables similar to what you find in the data analysis tool kit or in the Pandas library in Python with the native functions. How to create a correlation table:1. […]
Power BI Interview Questions
Here is a list of common Power BI interview questions that are open ended and use to demonstrate the overall knowledge of the applicant. These questions are real and allow you to find intermediate level Power BI practitioners. Answering 6 out of the 10 question would demonstrate a confident familiarity with Power BI. 1. Where […]
Calculate Totals Month to Date & More in Power BI
How to Calcuate MTD, QTD and YTD in Power BI Calculating the month to date, year to date, or quarter to date is not as daunting as you think in DAX. However, there are few stepst that are needed before you can get these function to provide the information that you are looking for. These […]
Format all the Font in Power BI
You can quickly get uniform text accross your visuals by using the Power BI themes customization. In just a few steps you will be able to quickly alter the text family. Step 1: Go to Theme Options The first step you will need to take is to navigate to the top ribbon in Power BI […]
Forecasting with Python and Power BI
We are using an airline passenger dataset that you can get from Kaggle, which shows us the data from 1949 to 1960 for airline passengers. Please find the PBIX file on my Github Load in my dependencies, which are pandas and numpy and Matplotlib. I’m just going to import those in. And then once […]
Rolling Averages In Power BI
Getting a rolling average should be an native function in Power BI. However maybe at the time you read this, there will already be a a feature added. However, in the meantime lets dive into dynamic rolling average using Power BI. Here are the list of functions will be using the to create our calculation: […]