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A charting challenge...

  1. #1
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    Join Date
    09-19-2003
    Posts
    9

    A charting challenge...

    I need to chart the following cumulative probability jugments from seven experts. On the x axis I need the value (0 to 900) and the cumulative probability on the y, with each expert's data appearing as an "s" shaped probability curve. Ideally I'd add multiple x-axes and one y, but I don't think I can do this, or to create the illusion of it.

    Any ideas much appreciated.

    Graham

    Expert 1 Expert 2 Expert 3 Expert 4 Expert 5 Expert 6 Expert 7
    0.01 2 4 2 2 2 2 2
    0.1 20 40 10 20 20 20 5
    0.25 90 120 90 15 90 90 20
    0.5 180 240 95 240 180 180 90
    0.75 240 300 100 250 240 240 120
    0.9 260 320 120 260 240 400 200
    0.99 270 400 150 600 270 600 900

  2. #2
    Registered User
    Join Date
    09-19-2003
    Posts
    9

    Oh, I figured out a way...

    Hi,

    I figured out a way of doing it, if anyone's interested. Because the values are all integers, I could create a column of values from 1 to 900 and use match and offset to link them with the appropriate %iles using the formula:

    =IF(ISERROR(MATCH($A12,B$2:B$8,0)),NA(),OFFSET($A$1,MATCH($A12,B$2:B$8,0),0))


    Expert 1 Expert 2 Expert 3 Expert 4 Expert 5 Expert 6 Expert 7
    1% 2 4 2 2 2 2 2
    10% 20 40 10 20 20 20 5
    25% 90 120 90 15 90 90 20
    50% 180 240 95 240 180 180 90
    75% 240 300 100 250 240 240 120
    90% 260 320 120 260 240 400 200
    99% 270 400 150 600 270 600 900

    Expert 1 Expert 2 Expert 3 Expert 4 Expert 5 Expert 6 Expert 7
    1
    2 0.01 #N/A 0.01 0.01 0.01 0.01 0.01
    3 #N/A #N/A #N/A #N/A #N/A #N/A #N/A
    4 #N/A 0.01 #N/A #N/A #N/A #N/A #N/A
    5 #N/A #N/A #N/A #N/A #N/A #N/A 0.1
    6 #N/A #N/A #N/A #N/A #N/A #N/A #N/A
    7 #N/A #N/A #N/A #N/A #N/A #N/A #N/A
    8 #N/A #N/A #N/A #N/A #N/A #N/A #N/A
    9 #N/A #N/A #N/A #N/A #N/A #N/A #N/A
    10 #N/A #N/A 0.1 #N/A #N/A #N/A #N/A
    11 #N/A #N/A #N/A #N/A #N/A #N/A #N/A
    12 #N/A #N/A #N/A #N/A #N/A #N/A #N/A
    13 #N/A #N/A #N/A #N/A #N/A #N/A #N/A

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