1. 1 Spreadsheets Lets you store and analyze data. 2-dimensional grid Each entry location is a cell. The cells have indexes –Rows are different numbers –Columns are different letters

2. 2 Cells Each cell can have information in it. The cell can have a label or a piece of text. –Set by typing the text into the cell. The cell can have a value (number). –Set by typing the number into the cell. The cell can have a value rule. –Set by entering a formula or function into the wide box with the = to the left of it.

3. 3 Cells Adjust size of cells by dragging along the borders of the cells. –L/R drag to change the size of a column. –U/D drag to change the size of a row. You can make rows/columns “disappear” but they can be restored with dragging.

4. 4 Insert/Delete Cells Right click on the row/column header Select a region Then –Insert –Delete –Cut –Copy

5. 5 Selecting Cells Mouse over cells to select. Use the name box above the A column. Can select several disjoint areas. –Hold down Control key while selecting.

6. 6 Marking Cells Mouse over them holding the left button. Enter a range into the small box on the upper left. Click on the column/row headers to mark all cells in one row or column. Ctrl-A for all cells. Mark more than one range of cells by holding CTRL as they are marked.

7. 7 Entering Labels Just type non-numeric text and they will appear. These don’t get used in calculations. Can replace by typing over them again.

8. 8 Entering values Enter a number into a cell. It stays constant. It can be used in formulas.

9. 9 Value Rules Formulas relating cells to each other. Generally a formula references other cells. Copying formulas causes relative changes to the cells referenced. –If a formula in cell A6 is average(A1:A5) –If A6 is copied to B6 –The formula in B6 is average(B1:B5)

10. 10 Copying Value Rules If the copy is to another column, the columns change. If the copy is to another row, the rows change. You can fix a row or column by putting a $ in front of the row number or column letter, or both.

11. 11 Entering Value Rules Value rules can be formulas –A5+($B7/4+24) –E2*F5 Value rules can be functions –AVERAGE(A3:B7) –SUM(G5:H20) Or combinations of both.

12. 12 Entering Value Rules Parentheses must match. Usually there are cell blocks being referenced. They can be moused over while entering the formula. Labels/blanks are ignored Value rules can reference other value rules.

13. 13 Sorting Can sort by column or row. Can sort by several factors in order –Ties in one factor get sorted in the next factor. Will also change other information outside of the data being sorted (if it’s marked). Can be used to organize data for plots.

14. 14 Graphs X-Y Correlation (scatter) plots. Height plots. Bar graphs. Pie graphs. Can pre-select data ranges by marking them, or you can clear the data ranges and mark new ranges.

15. 15 Entering Data Can enter thousands of data pieces at once –Enter a piece of data in a cell –Mark a row or column using the name box –CTRL-D or CTRL-R as necessary to fill in the blanks Can use that for statisitcal analysis.

16. 16 Importing Data Get a data source from a file or the WWW. Get it into Word Processor to neaten it up. Import it using breakpoints/delimiters. Import using copy/paste and data->text to columns. May require some fixing to make it work.