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Computer Training Source, Inc. @ 420 N Wabash Ave, Chicago, IL

Learn to connect, model, and shape data with Power BI Desktop Software at Computer Training Source, Inc. Customize visuals, create calculated messages, and build interactive visualizations for enhanced data analysis. Enhance your data modeling skills and create dashboards with Power BI.

(21) All levels 18 and older

8 sessions

+26950 pts
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Power BI Tools: DAX Introduction

Learn how to use Data Analysis Expressions (DAX) to create custom calculations in the Power BI Data model in this comprehensive course. Enhance your business analytics skills and solve common business problems with DAX. Join us for an instructor-led course packed with hands-on labs and demonstrations.

  • Beginner
  • 18 and older
  • $995
  • Earn 10% Rewards
  • Price Lock
  • 1320 Tower Rd, Chicago, IL
  • 13 hours & 30 minutes over 2 sessions

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  • $995
  • 13 hours & 30 minutes over 2 sessions
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Class Description


What you'll learn in this power bi class:

In this two-day course, students will be introduced to using Data Analysis Expressions (DAX), which is the expression language that is used to create custom calculations in the Power BI Data model. The course covers some of the theoretical underpinnings of the data model and DAX, but the emphasis is on using DAX to solve common business problems. Students will learn how to write their own calculated columns, measures, and tables, how to visualize the way Power BI computes DAX calculations, and how to troubleshoot custom code. This instructor-led course consists of a combination of lecture, demonstrations, and hands-on labs.

Software Used During the Class

  • The standard lab setup for this class consists of a Window 10 PC with Power BI Desktop and DAX Studio installed.


  • This course is intended for business users who have been using Power BI to build analytic solutions and are ready to take advantage of the power and flexibility that DAX provides. Learning DAX is a very common “next step” for experienced Power BI users.


  • Although experience with Power BI Desktop is not strictly required for this class, students with at least some familiarity will be better equipped to get the most out of the lab work.

DAX functions that are covered in this class include:

  • Date and time functions: CALENDAR(), DATE(), DATEDIFF(), NOW(), WEEKDAY(), WEEKNUM(), YEAR(), MONTH(), DAY()
  • Logical functions: AND(), COALESCE(), IF(), IF.EAGER(), IFERROR(), NOT(), OR(), SWITCH(), TRUE(), FALSE()
  • Table manipulation functions: CROSSJOIN(), DATATABLE(), NATURALINNERJOIN(), VALUES()
  • Text functions: CONCATENATEX(), FIND(), LEFT(), LEN(), MID(), REPLACE(), SEARCH(), TRIM(), VALUE()

Course Outline

Getting started with DAX

  • What is DAX?
  • Basics of DAX syntax
  • Creating a calculated column
  • Creating a calculated measure
  • Creating a calculated table
  • Differences in evaluation context
  • Rules of evaluation
  • Working with variables
  • Commenting your code
  • Testing your code

Performing basic calculations

  • Implicit measures
  • Adding quick measures
  • Doing basic math
  • Using logic in your calculations
  • Aggregating and summarizing data
  • Working with DAX data types

Working with context in the data model

  • Context defined
  • Data modeling basics
  • Introduction to dimensional modeling
  • Relationships and their effect on the evaluation context
  • Getting data from other tables using RELATED and RELATEDTABLE
  • Modifying the context using CALCULATE
  • Looking up data without using relationships

Performing more advanced calculations

  • Handling errors gracefully
  • Using DAX iterator functions
  • Using table manipulation functions
  • Troubleshooting your calculations using the Performance Analyzer and DAX Studio

Working with time

  • Performing date calculations
  • Working with date tables
  • Generating a date table with the CALENDAR() function
  • Defining custom operating periods
  • YTD, QTD, and MTD calculations
  • Custom to-date calculations
  • Finding year-over-year change
  • Finding moving averages

Enhancing the user experience

  • Controlling visibility of your measures
  • Using What-if parameters
  • Adding banding
  • Using DAX to provide row-level security

Refund Policy

Cancellation / Reschedule by Student

Because we must schedule rooms, ship course materials, assign instructors and provision computer resources well in advance, it is important students alert us ASAP with any cancel/reschedule requests.

Please note the following policies:

  • If requested 16 or more calendar days before the class
    • Cancellation requests made in this timeframe are eligible for refund less 5% cancellation fee.
    • Reschedule requests made in this timeframe will be accommodated if availability exists and will be processed at no additional charge.
  • If requested 15 calendar days or less before the class
    • Cancellation or Reschedule requests made by the student 15 calendar days or less before the class starts will be charged 100% the course fee and are not entitled to a refund.


  • If you are unable to attend your class, a substitute who meets the course prerequisites may attend in your place at no additional charge for the original class title, date and location. If you cannot find a substitute, you will be subject to the class cancellation policy.

Make-up Policy

Students are permitted one (1) Make-Up opportunity to attend an instructor-led class that was paid for but not previously attended for no additional charge.

  • Make-Up class registrations are subject to availability and are not entitled to refund.
  • Students may not reschedule a Make-up class registration.
  • Any no shows or cancellations forfeit their one Make-up opportunity.

Additionally, ONLC reserves the right to retire courses due to lack of demand. Retired classes are not available for Make-Up.

In the event that an instructor or the school needs to cancel at the last minute, students will receive a refund less a 5% non-refundable registration fee.

In any event where a customer wants to cancel their enrollment and is eligible for a full refund, a 5% processing fee will be deducted from the refund amount.

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ONLC Training Centers

ONLC Training Centers was founded in 1983 when Jim Palic and Andy Williamson left their positions as mainframe programmers with the Dupont Company to start one of the industry's first computer training companies.

Over thirty years and still growing, ONLC Training Centers is one of the the largest privately...

Read more about ONLC Training Centers

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ONLC Training Centers

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