Kerry Kolosko

Chart Makeover

2024 Week 43 | Power BI: Line Chart Makeover

Introduction This week’s challenge is to test your data storytelling skills and enhance a line chart of service desk survey responses to focus attention on important aspects. No solution file provided this week. Requirements Obtain the data Model Data Create a chart showing survey response trends Dataset This week’s dataset is downloadable from Github https://github.com/kolky001/Workout-Wednesday-2023/blob/main/Help%20Desk.xlsx  …

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2024 Week 35 | Power BI: Overlapping histogram with normal distribution curve

Introduction Overlapping histograms with normal curve overlays are used to compare the distribution of a numerical variable across different groups such as male and female body mass. With this we can glance the central tendency, spread, and skewness of the data within each group and also how well the data follows a normal distribution. The …

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Timebrush slicer visual with Deneb depicting Rat Sightings in Manhattan

2024 Week 25 | Power BI: Time Brush Slicer

Introduction This week’s challenge looks to create a time brush slicer. The time brush slicer can be created with Deneb or another custom visual. Requirements Obtain the data from a previous challenge Model data Option A Import Timbrush Slicer and Small Multiple Custom Visual Create a time brush slicer Create a line chart with small …

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2024 Week 22 | Power BI: Approximate Binned Mapping with Scatterplots

Introduction When used with care, scatterplots can be used to create symbol maps using an equidistant projected map (or Geographic or Plate Carrée) as the plot background image. Attention will need to be paid to proportions and axis scales. More information on projection types. https://en.wikipedia.org/wiki/List_of_map_projections Requirements Obtain the snowfall data from github Create new columns …

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Radial Plots

2024 Week 19 | Power BI: Radial Plots using Line and Scatter Charts with trig functions

Introduction In this week’s challenge, we are experimenting with Radial Plots using Line and Scatter Core Visuals. Radial Lollipop charts are an alternative to radar charts. Power BI does not have Polar Plots, only cartesian plots, so we will need to use trigonomic functions within DAX to calculate the cartesian X and Y position of points. Requirements …

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Star Trek timeline data plotted on a sine wave

2024 Week 16 | Power BI: Timeline on a Sine Wave with Core Visuals

Introduction In this week’s challenge, we are creating a timeline visual on a sine wave. You can use your creativity to break out the timelines into series, through conditional formatting, offsetting separate shapes, or create different shapes using different trigonomic functions. Alternatively, with small multiples. Requirements Obtain the data from Kaggle and/or Wikipedia Create a …

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Overlapping Histogram

2024 Week 13 | Power BI: Overlapping Histogram

Introduction In this week’s challenge we are creating an Overlay Histogram. An overlay histogram utilises overlapping columns or bars to compare two populations. In this case, we are utilising the speed dating data from a previous challenge to compare male and female differences in dating preferences. Requirements Obtain the data from the Workout Wednesday 2022 …

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2024 Week 8 | Power BI: Build a Pipeline Funnel with Core Visuals

Introduction This week’s challenge we will be utilising visual calculations (this will require turning Visual Calculations on in Preview settings of February 2024 Desktop) and some additional new data label formatting options to create a pipeline funnel with out of the box visuals in Power BI. Visual calculations can be handy for visual specifiic calculations …

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