Difference between revisions of "Manuals/calci/LOGINV"

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*<math>sd</math> is the standard deviation of ln(x)
 
*<math>sd</math> is the standard deviation of ln(x)
 
==Description==
 
==Description==
*This function gives the inverse value of lognormal  cumulative distribution.
+
*This function gives the inverse value of Log-normal Cumulative Distribution.
*This  distribution is the continuous probability distribution.  
+
*This  distribution is the Continuous Probability Distribution.  
*Lognomal distribution is also called Galton's distribution.
+
*Log-normal Distribution is also called Galton's distribution.
 
*A random variable which is log-normally distributed takes only positive real values.
 
*A random variable which is log-normally distributed takes only positive real values.
*If LOGNORMDIST(x,m,sd)=prob, then LOGINV(prob,m,d)=x.  
+
*If <math>LOGNORMDIST(x,m,sd)=prob</math>, then <math>LOGINV(prob,m,d)=x</math>.  
 
*This function will give the result as error when  
 
*This function will give the result as error when  
#Any one of the argument is nonnumeric.
+
Any one of the argument is non-numeric.
#prob<0 or prob>1 or sd<=0
+
<math>prob<0</math> or <math>prob>1</math> or <math>sd \le 0</math>
  
 
==Examples==
 
==Examples==
  
#LOGINV(0.039084,3.5,1.2)=4.000025219  (EXCEL)=3.9957031(CALCI)
+
#LOGINV(0.039084,3.5,1.2) = 3.9957031
#LOGINV(0.24786,6.25,3.12)=61.83892171  (EXCEL)=NULL(CALCI)                                                 
+
#LOGINV(0.24786,6.25,3.12) = NULL                                              
#LOGINV(0.007543,5.82,2.9) =0.292909096(EXCEL)=NULL(CALCI)
+
#LOGINV(0.007543,5.82,2.9) = NULL  
  
 
==See Also==
 
==See Also==
 +
*[[Manuals/calci/LOG | LOG]]
 +
*[[Manuals/calci/EXP | EXP]]
 +
*[[Manuals/calci/LN  | LN]]
  
 
==References==
 
==References==
 
[http://en.wikipedia.org/wiki/Bessel_function  Bessel Function]
 
[http://en.wikipedia.org/wiki/Bessel_function  Bessel Function]

Revision as of 00:56, 16 December 2013

LOGINV(prob,m,sd)


  • is the probability associated with lognormal distribution
  • is the mean value of ln(x)
  • is the standard deviation of ln(x)

Description

  • This function gives the inverse value of Log-normal Cumulative Distribution.
  • This distribution is the Continuous Probability Distribution.
  • Log-normal Distribution is also called Galton's distribution.
  • A random variable which is log-normally distributed takes only positive real values.
  • If , then .
  • This function will give the result as error when
Any one of the argument is non-numeric.
 or  or 

Examples

  1. LOGINV(0.039084,3.5,1.2) = 3.9957031
  2. LOGINV(0.24786,6.25,3.12) = NULL
  3. LOGINV(0.007543,5.82,2.9) = NULL

See Also

References

Bessel Function