charticulator.com/_tutorials/tutorial9.md

description	image	order	tutorial
Bar Chart with Error Bars	/images/tutorials/tutorial9.png	9	videoSource duration captions mp4 ../videos/tutorials/tutorial9.mp4 68.00 section # Dataset & Chart Results from a usability study comprised of four tasks. In this tutorial, we display task completion time by creating a bar chart with error bars. section # Set up the Chart timeBegin timeEnd text 0.00 2.60 Assign `Task` to the Y axis timeBegin timeEnd text 2.60 5.39 Adjust the height of the chart section # Create a Data-Driven Guide timeBegin timeEnd text 5.39 15.60 After adding a data-driven guide to the glyph editor, add `Mean`, `LOWER`, and `UPPER` to the data-driven guide timeBegin timeEnd text 15.60 20.99 Adjust the range and position of the X axis section # Create a Bar Glyph with an Error Bar timeBegin timeEnd text 20.99 24.80 Add a rectangle mark to the glyph timeBegin timeEnd text 24.80 27.40 Set the color of the mark to light blue timeBegin timeEnd text 27.40 30.49 Adjust the width of the chart timeBegin timeEnd text 30.49 42.70 Add three lines to draw an error bar section # Add Labels to Show Task Time timeBegin timeEnd text 42.70 48.40 Add a text mark for the label and move it to the desired position timeBegin timeEnd text 48.40 55.00 Map `Mean` to the label's `Text` and adjust the text formatting timeBegin timeEnd text 55.00 61.20 Set the label's color to white and increase the font size section # Adjust the Gap timeBegin timeEnd text 61.20 68.00 Adjust the gap between bars