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For the Love of Polygons: Creating a Radial Tab Polygon Chart

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How to create a radial tab polygon chart in Tableau. A presentation for VizConnect. Supplemental workbook can be downloaded here (https://public.tableau.com/views/HowtoCreateaRadialTabPolygonChart-VizConnectPresentation/VitruvianMan?:display_count=y&:origin=viz_share_link) to follow along.

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For the Love of Polygons: Creating a Radial Tab Polygon Chart

  1. 1. CREATING A RADIAL TAB POLYGON CHART BY LINDSAY BETZENDAHL about journey theviz skills tutorial follow #VizConnect Season 2 Episode 7 FOR THE LOVE OF POLYGONS
  2. 2. about journey theviz skills tutorial follow FOR THE LOVE OF CREATING A RADIAL TAB POLYGON CHART POLYGONS
  3. 3. about journey theviz skills tutorial follow ABOUT ME LINDSAY BETZENDAHLCONSULTANT, HEALTHDATAVIZ TABLEAU ZEN MASTER TABLEAU PUBLIC AMBASSADOR VIRTUAL HEALTH TUG CO-LEADER Using Tableau for almost 6 years analyzing healthcare data; however I spent the 10 years prior to that as a behavioral health clinician.
  4. 4. about journey theviz skills tutorial follow 2019 3 2018 2 2014 1 TABLEAU Discovered, practiced, implemented, taught COMMUNIT YParticipated in Makeover Monday, started a blog, Twitter LEADER #ProjectHealthV iz, #MomsWhoViz, Ambassador, speaker
  5. 5. about journey theviz skills tutorial follow 01 02 03 THE DATA PROSTATE CANCERIncidence and mortality rates by state for multiple years THE IDEA VITRUVIAN MAN A drawing by Leonardo DaVinci representing the ideal human body proportions THE VIZ JUXTAPOSITION Combining info about surgery side- effects, rates, and shame with the perfection of art
  6. 6. about journey theviz skills tutorial follow DUPLICATING 4x In order to calculate all four points of each polygon DENSIFICATION RADIALS Using trig to calculate the points along radials from a center point TRIGANOMETRY X and Y Plotting the coordinates and setting the dimension detail COORDINATES
  7. 7. about journey theviz skills tutorial follow Duplicate your dataBring in your sheet 4 times into the data source pane. Tableau will create a field called ”Table Name”. Path Order FieldUsing Table Name, we will create a calc to identify each of the four points – one data set per point. Parameter FieldsUsing polygons means we can have a lot of flexibility over our viz. Create 3 parameters to allow for adjustments. Building the VizX to rows, Y to columns, dimension to detail, mark to polygon, table name on path, change X/Y compute using the dimension. Customizin gAdjust the inner and outer radius and the spacing between the “tabs” by using the 3 parameters. Coordinate CalcsSeven calcs are needed here to build the radial points: index, angle, degrees, radians, radius, X and Y.
  8. 8. about journey theviz skills tutorial follow VizZenData.co mCheck out my website/blog and subscribe Tableau PublicFollow me at Lindsay Betzendahl @ZenDollDat aI tweet daily all things data viz

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