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Weibull with threshold

I am trying to fit my data with Weibull Threshold. The threshsold value that I get is always the minimum value in my data.

My data is as follows.

1 1.15E+04
2 1.47E+04
3 2.48E+04
4 2.60E+04
5 2.64E+04
6 2.83E+04
7 3.56E+04
8 6.30E+04
9 6.35E+04
10 6.90E+04
11 1.38E+05
12 1.45E+05
13 2.73E+05
14 2.41E+06
15 4.26E+06
16 8.21E+06
17 1.00E+07

For the above data, with Weibull fit with threshold, 1.15E04 is the value that I get which is the minimum in my data. Would someone please help me to get the correct threshold value

Thank you

Super User


Jun 23, 2011

Here's the word from JMP support:

The behavior you have noticed with the threshold parameter for the Weibull distribution is by design. We have a JMP usage note on this available on our web site at