1. Localized Trendlines
LSP 120
Week 6
Joanna Deszcz

2. Let’s Interpret This Graph
What would a trendline look like?

3. Let’s Interpret This Graph
What would a trendline look like?

4. Let’s Interpret This Graph
But what about
this downward
trend?

5. Let’s Interpret This Graph
Maybe we should
do a trendline for
just this downward
segment.

6. Let’s Interpret This Graph
Is the Localized Trendline more accurate
than the overall trendline?

7. An Example
Percentcollegewomen.xls

8. Adding a Localized Trendline
Step 1
Create and xy scatter plot of the data
Is a localized trendline needed?
Yes if…
Low R2 value
Trendline doesn’t fit the data points
Trend changes direction

9. Adding a Localized Trendline
Step 2
Remove the original trendline
Select and copy the data that represents the newest trend
Click on the chart to activate it
Choose Paste Special from the Paste menu

10. Adding a Localized Trendline
Step 3
Add cells as a new series
Category (X values) in First column

11. Adding the New Trendline
Step 4
Right-click on any of the new data points
Choose Add Trendline from menu

12. Trendline Dialog Box Select Linear Trendline Select Display Equation
Display R- squared value

13. The New Trendline

14. Animation in PowerPoint
Once the chart is complete…
You can animate it with PowerPoint to emphasize your points
Here’s how….

15. PowerPoint Open a blank presentation Add a new slide
Home – Slides – New Slide
Copy your chart from Excel and paste it on the slide
You may delete the title slide if you wish

16. Add Animation Click on the chart to activate it
Click on the Animation Tab
Choose Custom Animation
Click Add Effect
Entrance
Choose an effect
Can modify speed and place of entrance as well
Click on drop down arrow next to “Content 1 Placeholder”

17. Continued… Choose Effect Options Choose Chart Animation tab
Select Group Chart – By Series Option
View slide show to see results
Chart parts should come in in stages
First chart
Second, original data
Third, trendline and localized data, predition, shapes

18. Design your Slides
Click on the Design tab to add custom or preformatted colors and designs to your slides