1. ME 142 Engineering Computation I Graphing with Excel

2. Key Concepts Creating a Basic XY Scatter Graph Linking Chart Titles to a Cell Adding Data to an Existing Graph Plotting Multiple Curves Plotting Multiple Curves with Diff. X Values Adding a Trend Line Modifying the Graph

3. Creating a Basic XY Scatter Graph

4. What is the difference between an XY Scatter Graph and a Line Graph?

5. Creating a Basic XY Scatter Graph  Excel supports many types of Graphs  XY Scatter is most common in engineering Do not confuse with Line Graph  To simplify graph creation process: Organize data into columns Omit any blank rows Pre-select data to be graphed

6. Example Problem  Create an XY Scatter Graph:

7. Linking Chart Titles to a Cell

8. How do you link a chart title or chart label to a cell?

9. Example Problem  Create an XY Scatter Graph:  Link titles/labels to cells

10. Linking Chart Titles to a Cell  Axis and chart titles can also be linked to cells Select the title in the graph Click on the formula bar and type in “=“ Select the cell to link to

11. Adding Data to an Existing Graph Plotting Multiple Curves

12. How do you add data to an existing graph? How do you plot multiple curves on the same graph?

13. Adding Data to an Existing Graph  Easiest way to add data is to select existing graph and drag highlighted range to new area  Works to add both columns and rows  Graph is automatically updated

14. Plotting Multiple Curves  Selecting data prior to chart creation is easiest  May also drag range to add additional curves

15. Example Problem  Create an XY Scatter Graph:  Link titles/labels to cells  Add data to the existing graph:  Add a second series to the existing graph:

16. Plotting Multiple Curves with Different X Values

17. How do you plot multiple curves that have different X-values on the same graph?

18. Plotting Multiple Curves with Different X Values  Select data to create first curve and insert graph normally  On Design Ribbon click on the Select Data icon  Select Add to add a new series  Select new X and Y series

19. Plotting Multiple Curves with Different X Values (cont)

20. Adding a Trend Line

21. What is a Trend line? How do you add a Trend line to an existing graph?

22. Adding a Trend Line

23. Common Graph Modification Tasks

24.  Resizing /moving the graph  Moving/Deleting the legend  Changing axis scales  Adding/Updating titles

25. Review Questions

26. Review Question Basic Graphs What type of graph is the following: A.Line Graph B.XY Scatter Graph C.Curve Graph D.Either A or B E.Cannot Tell from Given Information

27. Review Question Trendlines The only Trendline option supported by Excel is linear A.True B.False

28. Homework Help ‘n Hints