Using Logger Pro Software to Graph Data

Scientific Methods Using Logger Pro Software to Graph Data and to Develop Mathematical Models Collect your data, paying attention to independent and dependent variables. 1. In Logger Pro, enter your independent variable data in the “x” column enter your dependent variable data in the “y” column 2. Double-click on the data columns to label them with the quantity name and units. Greek letters, superscripts, and subscripts can be accessed using the pull-down menus to the right of the boxes. 3. Double-click on the top of the graph window to title the graph. 4. If the graph is linear, skip on to step 5. If not, make a test plot to attempt to linearize the graph: a. Under the Insert menu, choose Graph. b. To get the graphs to fit the screen well, under the Page menu, choose Auto Arrange. c. To prepare the data for the test plot, under Data, choose New Calculated Column . . . d. Enter the new column name and its units, then enter the equation. Use the Variables (Columns) pull-down menu to select the column of data you wish to modify, (the software automatically adds quotes around the column name) and use ^ for raising to a power, * for multiplication, / for division, etc. f. Click OK when finished. To show the values on the graph, click and hold on the label on the graph axis where you wish the new calculated values to appear, then click the calculated column name. g. Repeat step 4 until the data appear linear. 5. Under the Analyze menu, choose Linear Fit. 6. Under the Insert menu, choose Text. Type your names in the text box that appears. 7. Under File  Page Setup . . . set the page orientation to landscape. 8. Print a copy for each member of your group