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  • 58 – How to use Eigenvalues and Eigenvectors to Analyse Sales Data

    Throughout university, I came across various concepts, but didn’t fully understand how I could implement them into real-world situations. Over those years in my Economics and Commerce degrees, it always felt like I was chasing the understanding as it had been a few years since leaving high school and I hadn’t thought about particular concepts,…

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  • 56 – How to Test for Collusion in Google Sheets

    Whilst considering ways to implement statistics and algorithms into my workplace tasks, I came across the idea of collusion. The definition of collusion is ‘secret or illegal cooperation or conspiracy in order to deceive others’, but I’m essentially looking for a way to detect if there’s been interference between 2 or more persons in regards…

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  • 55 – School Lesson Plans

    After the last post, I realised how beneficial it might be to someone, somewhere on the internet, to have access to some of the lesson plans/units that I had created. The early days for me were spent looking over individual lessons, lesson plans, and unit plans. I was attempting to understand how they all connected…

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  • 53 – 1 Year Blog Anniversary

    Today marks my 53rd blog and the one year anniversary of this blog! On the 7th July, 2023, I quit my job as a school teacher on the north east coast of Tasmania. It had been an extremely intense year and a half where I had spent so much time doing reflection as opposed to…

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  • 52 – How I Constructed the Final Data Analyst Roadmap Milestone

    Homework Review It’s been two weeks since this post, but how did you go with the homework? Here is a link to the solutions, which I crafted, and the (shorted) implemented solution (below): https://docs.google.com/spreadsheets/d/1SMesfxuEwgVPPm3O8UJgaeQ4RtWNrkd39y2UEkgb9jc/edit#gid=1362202755 Default currency =IF(AND($B2>$D$2,$C2=”Tulsa”),1,0) Referencing other sheets =SUBSTITUTE(SheetB!A1,“want”,“here”) =SUBSTITUTE(SUBSTITUTE(SheetB!A2,“here”,“guilty”),“alibi”,“guilty”) =SUM(SheetB!A5:A12) =AVERAGE(SheetB!A5:A12) =MEDIAN(SheetB!A5:A12) Remove duplicates List of Unique IDs =IFERROR(VLOOKUP(A3,$A$2:$B2,2,0),“EMP”&MAX(RIGHT($B$2:B2,LEN($B$2:B2)-SEARCH(“p”,$B$2:B2))+1)) Multiple dependent dropdown…

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  • 51 – 8/8 Learn Data Storytelling

    Learn the fundamentals of Statistics Learn SQL Learn Python for Data Analysis Learn Data Manipulation and Visualisation Learn Statistical Analysis Learn Data Visualisation Tools Work on Projects Learn Data Storytelling This is the “final” instalment of the Data Analyst Roadmap. Honestly, this particular post has taken a lot of mental energy to create, but I…

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  • 50 – 10 Google Sheets Troubleshooting with some FAQs and not so FAQs

    I thought it would be a good idea to collate some Google Sheets Troubleshooting information. This guide includes some Frequently Asked Questions and some not so Frequently Asked Questions, but still interesting nonetheless. When I originally set out to make this post, I thought it would be a short and sweet entry into the log.…

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