Difference between revisions of "Manuals/calci/LOGINV"
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<div style="font-size:30px">'''LOGINV(prob,m,sd)'''</div><br/> | <div style="font-size:30px">'''LOGINV(prob,m,sd)'''</div><br/> | ||
− | *<math>prob</math>is the probability associated with lognormal distribution | + | *<math>prob</math> is the probability associated with lognormal distribution |
− | *<math>m</math>is the mean value of ln(x) | + | *<math>m</math> is the mean value of ln(x) |
− | *<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 lognormal cumulative distribution. |
Revision as of 00:05, 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 lognormal cumulative distribution.
- This distribution is the continuous probability distribution.
- Lognomal distribution is also called Galton's distribution.
- 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.
- This function will give the result as error when
- Any one of the argument is nonnumeric.
- prob<0 or prob>1 or sd<=0
Examples
- LOGINV(0.039084,3.5,1.2)=4.000025219 (EXCEL)=3.9957031(CALCI)
- LOGINV(0.24786,6.25,3.12)=61.83892171 (EXCEL)=NULL(CALCI)
- LOGINV(0.007543,5.82,2.9) =0.292909096(EXCEL)=NULL(CALCI)