Graphical Analysis 3.0 for Windows

Installing and Opening Graphical Analysis

Installation

  1. Remove the silver USB TI-GRAPH LINK cable from the computer before installing Graphical Analysis 3.0 for the first time. This prevents conflicts with using the cable.
  2. Follow the installation instructions.

Opening G.A. 3.0

  1. If you are going to transfer data from your calculator, connect the calculator to the computer using the TI-GRAPH LINK. The gray or black cable should be connected to one of the COM ports (serial ports). The USB cable is attached to the USB port. You will need your calculator link cable with the black Graph Link cable. Be sure the plug is all the way in on the calculator. Be practical. If you only have a few ordered pairs, enter them manually into the columns in Graphical Analysis. It will often be much quicker than transmitting the data from the calculator.
  2. Start Graphical Analysis by double clicking on the GA icon. Close the TIP box when the Graphical Analysis for Windows screen appears.
  3. Open the files in the directory: 
    C:\\Program Files\Program Files\Verneir Software\Graphical Analysis 3.0\Tutorials
    and they will give you an introduction to the program.

Getting Data into Graphical Analysis 3.0

Importing Data from the TI calculators:

  1. Connect the calculator to the computer using the TI-GRAPH LINK. The gray or black cable should be connected to one of the COM ports (serial ports). The USB cable is attached to the USB port. You will need your calculator link cable with the black Graph Link cable. Be sure the plug is all the way in on the calculator. Be practical. If you only have a few ordered pairs, enter them manually into the columns in Graphical Analysis. It will often be much quicker than transmitting the data from the calculator.
  2. Start Graphical Analysis by double clicking on the GA icon. Close the TIP box when the Graphical Analysis for Windows screen appears.
  3. Turn on your calculator.
  4. Under the File menu, select Import from TI calculator/LabPro.  Short Cut: Use the Calculator icon button on the tool bar.
  5. A transmission box will appear. Select Port (COM. No. or USB).
  6. Select Cable Type (Gray or Black). If you are using a USB cable and chose the USB port, these will be inactive.
  7. Click on Scan for Calculator. The program will determine the type of calculator and will scan the calculator for lists of data. They will appear in the window.
  8. Click to highlight the lists you want to send. Multiple lists can be sent at one time. Click OK.
  9. The Data Table will show the data from the lists. The column headings will be the same as the ones on the calculator and the heading will show the type of calculator used. A graph will appear. The axes will be chosen from the first two lists imported.

Copying Data from Another Program (e.g. Logger Pro, Videopoint, Excel)

  1. Select whatever columns from your other program that you would like to copy.  For most programs, you can copy a whole table by choosing select all from the edit  menu or click on the upper left hand corner of the table.  To select a few columns, click on the top of the column holding the ctrl key to select multiple columns.
  2. Go to GA, and Right-Click on the data table.
  3. Select paste.
  4. Your data should now be in the G.A. Data Table. 
  5. Header information may or may not be pasted in as data, depending on the program you copied them from.  You can take out redundant header information now, by selecting the whole row, right-clicking, and deleting the data.  However, make sure you write down what the data in each column really are, so that you can include the headings later.

Manually Entering Data

  1. Click in the box beside Row 1 in the X column and type in the X-value of the first data pair. Press [ENTER], which will take you to the Y column in Row 1. Type in the Y-value for the first data pair. Press [ENTER], which takes you to Row 2. Enter the rest of the data in a similar manner. As the data pairs are entered, they will be shown on the graph.
  2. If you need to change a value, click on the box containing the data, which will become highlighted, and type in the new value. Press [ENTER] after making the correction.
  3. To create a new column in which data are manually entered, click on the data set. Go to the Data Menu and select New Manual Column. It will allow you to enter a New Column Name and New Column Units and decimal places. Click OK when you have done this. Enter the data in the column.

Adding Calculated Columns

  1. After selecting your data table, go to the Data Menu and select New Calculated Column.
  2. Enter a New Column Name and New Column Units, a Formula for the new column, decimal places, and whether the new column will be an X-axis or a Y-axis. The new formula may be typed or generated from menu boxes in the window. The Functions box gives standard math functions. The Columns box lets you choose the name of a column of data in the Data Table. The Constants box lets you enter pi and e. Click OK when done.

 

Setting The Headings for Each Column

1.       Double Click on the column header. (or right click, and select column options). 

2.       Enter the New Name, Short Name, and the New Units.

3.       Click on lock column to prevent accidental editing of your data, unless you are still entering them or need to remove header rows still.

4.       Click on the Options Tab in the same window. Set the Decimal Places or Significant Figures in the Displayed Precision box to the desired value. Click OK. The same number of decimal places or significant figures is applied to all data. The default value is three decimal places. The label and units automatically appear on the graph and the table.

5.       Don’t forget to do this for each column in your data table.

  1. Double Click on the Data Set Title box.  A dialog box will appear that will let you enter a new name for the data table. Click OK. This name will now appear on your data set.  This is a good place to put a note in as well about these data, like your names, date, etc…

Graphing Data:

To plot one set of data

  1. You probably do not want the points connected by a lines, so click in the graph window. Go to the Options menu. Select Graph Options. Deselect Connect Lines.
  2. To have the name of the data set displayed in the upper left corner of the graph, click on the graph window to activate the Graph menu. Go to the Options menu. Select Graph Options. Select Legend. Click OK. This window can be click dragged to another place on the window. The Legend can also be turned on and off under the Analyze menu.
  3. To change the column of data graphed on a given axis, click on the label for that axis. A dialog box will appear that will allow you to select from any of the columns of data. Click OK when done. (Alternatively, go to the Options menu, selecting Graph Options and then Axes Options.)
  4. To change the scale on a given axis, click on the label for that axis. A dialog box will appear that will allow you to select from Autoscale from 0, Autoscale, or Manual Scaling entering the limits for the axis. Click OK when done. You can also manually scale the axes by clicking on the number at the end of each axis and typing in a new value. Press [ENTER] after typing in the value. You can choose Zoom In, Zoom Out, or Autoscale from the Analyze menu or use the corresponding buttons on the tool bar.
  5. To get a linear regression line on the graph, click and drag over the region of the graph to be analyzed. Under the Analyze menu, select Linear Fit. The slope, y-intercept, and correlation factor will be displayed. Brackets will appear on the graph to show the range of the data selected. This window can be click dragged to another place on the window. To cut off this display, click on the close box in the regression statistics box.
  6. You can do the linear regression using the Curve Fit directions below. If more than one data set are present, choose the data sets for the analysis from the window that appears.
    Short Cut: Use the Linear Fit (R=) button on the tool bar to do a linear regression on the entire data set.
  7. To find the coordinates of each data point, select Examine under the Analyze menu. As you move the cursor, the coordinates of each point will be displayed. Deselect this to turn this feature off. Short Cut: Use the Examine (X=) button on the tool bar.
  8. To find the slope of the tangent to the curve at each data point, select Tangent under the Analyze menu. As you move the cursor, the slope of the tangent each point will be displayed. Deselect this to turn this feature off. Short Cut: Use the Tangent (M=) button on the tool bar.
  9. To display statistics about your data (mean, standard deviation, minimum, maximum), click and drag over the region of the graph to be analyzed and select Statistics under the Analyze menu. To cut off this display, click on the close box in the statistics information box. Short Cut: Use the Statistics (STAT) button on the tool bar.
  10. To integrate the area under a region of your graph, click and drag over the region of the graph to be analyzed and select Integral under the Analyze menu. The area under the curve will be displayed. To cut off this display, click on the close box in the integral information box. Short Cut: Use the Integral (shaded area under the curve) button on the tool bar.

To Plot More Data Sets on the Same Graph

Note:  These instructions assume the X-values from the different data sets are the same.

 

1. Go to the Data menu and select New Data Set. This will not create a new graph but will graph the new set of data on the same graph. The new data table will have the same label and units as the original data table. Use the bottom scroll bar in the Data Window to move to the right to the new data set.

2. Click on the Data Set window at the top of Data Set 2 and import the data or type in the data from your second experiment in the same manner as you did for the first. You will have to re-label the axes. Changing the label and units on the axes of one data set will change them on all the data sets. Rename the data set to correspond to the second experiment.

3. Click on the graph window. Click on the label on the Y-axis on the graph. Click to open each data set to see the Y-axis. Select each of the Y-axes boxes so both sets of data are displayed. Click OK.

4. Change the point protectors for the second data set. Double click on the column heading. In the Column Options window, click on the Options tab. Change the point protectors. Click OK.

5. Repeat steps 1-3 with other data sets.

Curve Fitting

1. One method to determine the relationship between two variables is to modify the variables until you get a linear relationship. Another way is to try to fit various functions to your data and see which curve fits best.

2. Under the Analyze menu, select Curve Fit. If there are several data sets, select the data set to be analyzed from the menu that appears. Automatic is the Fit Type default option. In the Curve Fit window, select from the stock functions or type (define) a function and click Try Fit. The trial fit will appear on the graph in this window and the coefficients, constants, exponents, slope, or intercept will appear in the window. Click OK if the fit is fine. The curve will appear on the graph with the coefficients, constants, exponents, and mean square error in a window on the graph. . Short Cut: Use the Curve Fit f(x)= button on the tool bar

3. A manual fit to a function allows you to try different starting values for the constants and exponents in that function. Select Curve Fit under the Analyze menu. Select Manual from the Fit Type options. Select from the stock functions or type (define) a function. Enter starting values for the constants and exponents. A curve will appear on the graph in this window that may not pass through the points. Change the constants and exponents to try to get the curve to pass through the points. Click OK when the fit is fine.

The Text Box

            The text box window allows you to enter information about the data set and graph. This information will be saved with the file.

 

Printing and Saving Files

  1. To print a graph, go to File menu and select Print Setup. Click on Landscape to print the graph down the page. Click OK to close the print setup window. Print Options under the File Menu allows you to add a footer line with the date, page title, and page number. Go to the File menu and select Print Graph (or use the printer icon button on the tool bar).
  2. To print a data set, go to the File menu and select Print Data Table. Since each data set may contain a large amount of data and will take a large amount of paper to print all the data sets. Print data tables only if you are specifically told to by your instructor.
  3. To save the data, go to the File menu and select Save As (or use the disk icon button on the tool bar). Save the data to your M drive. Name the file. You can save the file and print it later.

Exiting the Program

1. To quit, select Exit under the File menu.