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13.10.1 Drawing the Graph

To draw the Error graph:

  1. Start a new spreadsheet.

  2. Enter the following data into the new NExS spreadsheet:

    A B C
    1 10 8.0988273 5
    2 20 22.302867 8
    3 30 32.619301 3
    4 40 43.782683 2
    5 50 46.560826 4

  3. Select the range A1..C5 . The columns will now be highlighted.

  4. Select New Graph from the Graph menu and display its submenu.

  5. Select Error Graph from the New Graph submenu. NExS displays a window containing the Error graph.

  6. Turn off auto-scaling on the X-axis and set the minimum and maximum X axis values as 0 and 60, respectively.

  7. Edit data set #1 and set the marker as a circle.

  8. The Error graph will now appear as shown in Figure 13.19.

As with a line graph, the Error graph has a line connecting all the data points whose Y values are listed in column B. But similarly to the Hi Lo graph, the Error graph also contains a series of isolated vertical lines each of which is capped by a small horizontal tick. The horizontal ticks are placed equidistantly above and below the data points according to the values in column C of the spreadsheet. The horizontal location of each mark is set by the values in column A. You could also have created this Error graph by arranging the data into rows.

   figure4370
Figure 13.19: Error Graph

Just as with Hi Lo charts, Error graphs can show multiple sets of data.


next up previous contents index
Next: 13.11 Making a Hi Up: 13.10 Making an Error Previous: 13.10 Making an Error

NExS User's Guide, Version 1.4.5
Grey Trout Software
11 April 1999