Dear all:
Is there a Probit function in NONMEM we can directly use?
Thanks
Yaning
Yaning Wang, Ph.D.
Team Leader, Pharmacometrics
Office of Clinical Pharmacology
Office of Translational Science
Center for Drug Evaluation and Research
U.S. Food and Drug Administration
Phone: 301-796-1624
Email: [EMAIL PROTECTED]
"The contents of this message are mine personally and do not necessarily
reflect any position of the Government or the Food and Drug
Administration."
Probit function in NONMEM
Hi Yaning,
See the PHI function in the NONMEM help:
> ___________________________________________________________________
> | |
> | PHI |
> |_________________________________________________________________|
>
> MEANING: PHI function
> CONTEXT: NONMEM utility routine
>
> USAGE:
> DOUBLE PRECISION PHI,X,CUMDIS
> C (If single precision is to be used):
> C REAL PHI,X
> CUMDIS= PHI(X)
>
> DISCUSSION:
> Gives the value of the cumulative distribution function.
>
> For X < 0, this is the integral from -INF to X of N(0,1).
> For X > 0, this is the integral from X TO INF of N(0,1).
> For X=0, this is .5.
>
> Input argument:
>
> X
>
> REFERENCES: None.
Regards,
Bill
Wang, Yaning wrote:
> Dear all:
> Is there a Probit function in NONMEM we can directly use?
> Thanks
>
> Yaning
>
> Yaning Wang, Ph.D. Team Leader, Pharmacometrics Office of Clinical Pharmacology Office of Translational Science Center for Drug Evaluation and Research U.S. Food and Drug Administration Phone: 301-796-1624 Email: [EMAIL PROTECTED]
>
> "The contents of this message are mine personally and do not necessarily
> reflect any position of the Government or the Food and Drug
> Administration."
Thanks to Bill and Samer for their kind help. I want to point out that
the current NONMEM help for PHI function is wrong. PHI(X) is always the
integral from -INF to X of N(0,1) whether X is >0 or <0.
Yaning
Yaning Wang, Ph.D.
Team Leader, Pharmacometrics
Office of Clinical Pharmacology
Office of Translational Science
Center for Drug Evaluation and Research
U.S. Food and Drug Administration
Phone: 301-796-1624
Email: [EMAIL PROTECTED]
"The contents of this message are mine personally and do not necessarily
reflect any position of the Government or the Food and Drug
Administration."
Quoted reply history
-----Original Message-----
From: Bill Gillespie [mailto:[EMAIL PROTECTED]
Sent: Saturday, September 22, 2007 1:16 PM
To: Wang, Yaning
Cc: [email protected]
Subject: Re: [NMusers] Probit function in NONMEM
Hi Yaning,
See the PHI function in the NONMEM help:
> ___________________________________________________________________
> | |
> | PHI |
> |_________________________________________________________________|
>
> MEANING: PHI function
> CONTEXT: NONMEM utility routine
>
> USAGE:
> DOUBLE PRECISION PHI,X,CUMDIS
> C (If single precision is to be used):
> C REAL PHI,X
> CUMDIS= PHI(X)
>
> DISCUSSION:
> Gives the value of the cumulative distribution function.
>
> For X < 0, this is the integral from -INF to X of N(0,1).
> For X > 0, this is the integral from X TO INF of N(0,1).
> For X=0, this is .5.
>
> Input argument:
>
> X
>
> REFERENCES: None.
>
Regards,
Bill
Wang, Yaning wrote:
> Dear all:
> Is there a Probit function in NONMEM we can directly use?
> Thanks
> Yaning
>
>
> Yaning Wang, Ph.D.
> Team Leader, Pharmacometrics
> Office of Clinical Pharmacology
> Office of Translational Science
> Center for Drug Evaluation and Research
> U.S. Food and Drug Administration
> Phone: 301-796-1624
> Email: [EMAIL PROTECTED]
>
> "The contents of this message are mine personally and do not
necessarily
> reflect any position of the Government or the Food and Drug
> Administration."
>
>
>