Basic line charts

Visualizations in Sigma

Mandy Gray

Solutions and Enablement Lead, Aimpoint Digital

Visual storytelling with Sigma

Welcome!

Welcome!

Welcome!

Oakmark Bank needs your help

Oakmark Bank needs your help

Why visualize data?

• Sigma excels at tables and pivot tables
• Pictures convey more than words
• Charts bring insights to life

Choosing Sigma charts

Choosing Sigma charts

• Weigh strengths and weaknesses of charts
• Match charts to stakeholder needs

Choosing Sigma charts

• Consider your objectives clearly
• Ask the right question of the data
• Visualize to answer efficiently

Choosing Sigma charts

• Too much detail in charts

Choosing Sigma charts

• Too much detail in charts
• Too little detail in charts

Choosing Sigma charts

• Too much detail in charts
• Too little detail in charts
• Wrong chart type for task
• Aim for right chart and detail level

Call volumes concern

 

• Oakmark call center handles hundreds of daily calls
• Chief Hiring Officer monitors call volumes closely
• Rising calls require hiring more agents

Call volumes concern

• Fraudulent activity calls are a key concern
• Trigger lengthy review process
• Early detection of upward trends critical

 

What chart type is best for this question?

Line charts

• Show progression over time
• Time on x-axis
• Values on y-axis
• Visualize trends and patterns
• Need at least 2 columns
  • Date column
  • Numeric column

Bar charts

• Show time-based trends or categories
• Highlight proportional differences across categories

Oakmark's choice

• Fraudulent calls have no sub-categories, so detailed breakdowns aren't needed
• Overall trends matter more than monthly proportions, making line charts ideal

Let's practice!

Visualizations in Sigma