10.06.2016 Views

eldo_user

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Monte Carlo Analysis<br />

Additional Uncertainty Analyses (the .mcm File)<br />

==> Warning: The indices are computed under the assumption of normality<br />

P ... Estimated Probability of Being Within Limits<br />

Pl ... Prob. of Being Below L (lower spec)<br />

Pu ... Prob. of Being Above U (upper spec)<br />

Cp ... (UBound-LBound)/(6*Sigma)<br />

Cpl ... (Mu-LBound)/(3*Sigma)<br />

Cpu ... (UBound-Mu)/(3*Sigma)<br />

Cpk ... min(Cpl, Cpu)<br />

Index P Cp Name<br />

of Meas [ Pl , Pu ] [ Cpl, Cpu ] Cpk of Meas<br />

---------------------------------------------------------------------------------<br />

1 8.46218e-01 4.97321e-01 MAX<br />

3.61774e-02 1.17604e-01 5.98960e-01 3.95683e-01 3.95683e-01<br />

2 5.90732e-01 Infinity BW<br />

0.00000e+00 4.09268e-01 -Infinity 7.64764e-02 -Infinity<br />

3 1.00000e+00 Infinity IVDD<br />

0.00000e+00 0.00000e+00 2.14984e+02 Infinity 2.14984e+02<br />

Coorelation of Test Concordance<br />

This feature computes the pairwise-linear correlation coefficient between each pair of output<br />

measures. The sample correlation coefficient between two random variables (U, V) is given by<br />

the formula:<br />

There are some practical conventions used for computation:<br />

• By default, when one of two random variables has no variation, Eldo set the correlation<br />

coefficient to zero (0/0=0).<br />

• When the value U i or V i is undefined, because the corresponding extract function cannot<br />

be measured at the i-th run of the Monte Carlo simulation, then this data is removed<br />

from the computation. When all the pairwise data are removed, Eldo will return the<br />

value UNDEF.<br />

We also computes the p-value for testing the hypothesis of no correlation against the alternative<br />

that there is a non-zero correlation. If P-Val is small, say less than 5%, then the correlation r U, V<br />

is significantly different from zero.<br />

500<br />

Eldo® User's Manual, 15.3

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!