Data Rocks

Auteur(s): Data Rocks
  • Résumé

  • Whether you realize it or not, you encounter data every day. With all that data, it can be tough to know how it all fits together. Hi, I’m Bryan and I’ve spent more than 15 years of my career working with various types of data. I’ve made many mistakes, but also learned a lot along the way. Whether you’re looking to start a career in analytics, wanting to level up your data game, or just curious to know why some people get so excited about data, this show has something for you. Join me as we discuss different strategies and techniques for transforming and analyzing the data around you. Soon you’ll discover how simple it is to have fun with data. That’s because Data Rocks! Check back every other Tuesday for new episodes!
    © 2022 Data Rocks
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Épisodes
  • The Keys to Repeatable and Scalable Analysis
    Nov 24 2020

    Have you ever put together some analysis only to have your stakeholders say, “This is great, can I get this every month?”  Or have you ever thought, “this report takes too much time to build every week, I wish there was a way to shorten the amount of time I spend putting this report together?”  If you have, this episode is for you.  Tune in to hear some tips that will help you create repeatable analysis.

    Timeline:
    01:41 - The Goal of Analysis
    04:54 - Minimizing Technical Debt
    06:46 - Eliminate Manual Touches
    09:28 - Consider How You Use Filters
    11:08 - Combine Data Sources First
    11:48 - Set Up a Framework or Template
    13:02 - Use Consistent Naming Conventions
    14:35 - Document Your Process
    15:40 - The Last Record

    The Last Record:

    1. The goal of any analysis is to provide actionable insights.  Be sure to keep this in mind as you are building any reports
    2. Strive to minimize the technical debt and technical interest.  That’s the time needed to re-do portions of any analysis in order to do it properly, or the time needed to refresh the data on a regular basis.
      • Avoid manual touches - this could be data pulls, or even hand keying in information into a spreadsheet.
      • Put filters up front, and remove as much data as possible in the first filter, and each subsequent filter should remove less and less data.
      • Set up a framework so you only have to update the raw data, and not rebuild a summary or data visualization
      • Watch out for your naming conventions
        • Be consistent with how you name your fields throughout your workflow
    3. Document your steps and process.  Your future self will thank you for saving pain and heartache trying to figure out why you created the process the way you did.  
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    19 min
  • Data Discovery: Dos and Don’ts
    Nov 10 2020

    In this episode I’ll discuss some keys to remember when examining a dataset for the first time.

    Timeline:
    02:25 - Do #1 - Look at your data carefully
    05:32 - Don’t #1 - Don’t try to bite off too much
    07:32 - Do #2 - Look for patterns and trends
    10:15 - Do #3 - Consider the data source
    13:13 - Do #4 - Identify blind spots in your data
    15:22 - Don’t #2 - Don’t include incomplete or missing data

    Survey of Data Workers:
    https://community.useready.com/whitepapers/idc-infobrief-state-of-data-science-and-analytics/?auto-trigger

    The Last Record:

    1. Look at the data carefully
      • Do you have all the fields that you will need?
      • Is it a number field?  Is it text?
    2. Look for the patterns and trends
    3. Consider the source
      • Are there controls in your data?
      • Are you pulling from an outside source that may not always be available or updated?
    4. Identify the blind spots in your data
      • Think about the questions you can answer using this data.  
      • Are there any limitations?  If there are, you may need to supplement with additional data.
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    20 min
  • The Progression of Analytics
    Oct 27 2020

    In this episode you’ll learn about the 4 main types of analytics and when to use each method in your own analysis.

    Previous Episode:
    https://datarockspodcast.buzzsprout.com/1276397/5866354-having-fun-with-data-sabermetrics-style

    Timeline:
    01:26 - Guideposts in Analytics
    03:21 - Descriptive Analytics
    05:26 - Diagnostic Analytics
    06:55 - Predictive Analytics
    10:04 - Prescriptive Analytics
    11:05 - A Deeper Dive
    17:56 - Which Method Should You Use?
    19:22 - The Last Record

    The Last Record:

    1. The most important thing you can do as an analyst is help tell the story.  
    2. The progression of analytics contains four main methods.  Descriptive (what happened); Diagnostic (why did it happen); Predictive (what will happen); and Prescriptive (what actions can I take based on what will happen).  With each step in the progression, the analysis becomes more difficult, but the payoff is with greater value.
    3. We talked about an example in transportation where I walked you thru some of the questions and types of analysis you may encounter in each of the four methods.
    4. In order to know what method to use, you have to know what data you have available and what you are capable of providing.  It’s important to listen to your stakeholders and understand the problem that you’re trying to solve, so you can provide the best solution possible.
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    22 min

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