Exponential Distribution
Parameters
- continuous inverse scale parameter
()
- continuous location parameter
( yields the one-parameter Exponential distribution)
Domain
Two-Parameter Exponential Distribution
Probability Density Function
Cumulative Distribution Function
One-Parameter Exponential Distribution
Probability Density Function
Cumulative Distribution Function
Worksheet and VBA Functions
The following worksheet
and VBA functions are available for
this distribution:
Description |
VBA Functions |
Worksheet Functions |
Distribution Fitting |
- |
=DistFit("Exp";Data;[Options] 1)
|
Probability Density Function |
ExpPdf(x,lambda,[gamma]) |
=ExpPdf(lambda;[gamma])
=DistPdf("Exp(lambda;[gamma])";x)
|
Cumulative Distribution Function |
ExpCdf(x,lambda,[gamma]) |
=ExpCdf(lambda;[gamma])
=DistCdf("Exp(lambda;[gamma])";x)
|
Survival Function |
ExpSurv(x,lambda,[gamma]) |
=DistSurv("Exp(lambda;[gamma])";x)
|
Hazard Function |
ExpHaz(x,lambda,[gamma]) |
=ExpHaz(lambda;[gamma])
=DistHaz("Exp(lambda;[gamma])";x)
|
Cumulative Hazard Function |
ExpCumHaz(x,lambda,[gamma]) |
=DistCumHaz("Exp(lambda;[gamma])";x)
|
Inverse CDF (Quantile Function) |
ExpInv(P,lambda,[gamma]) |
=ExpInv(lambda;[gamma])
=DistInv("Exp(lambda;[gamma])";P)
|
Random Numbers |
ExpRand(lambda,[gamma]) |
=ExpRand(lambda;[gamma])
=DistRand("Exp(lambda;[gamma])")
|
Mode |
ExpMode(lambda,[gamma]) |
=DistMode("Exp(lambda;[gamma])")
|
Mean |
ExpMean(lambda,[gamma]) |
=ExpMean(lambda;[gamma])
=DistMean("Exp(lambda;[gamma])")
|
Variance |
ExpVar(lambda,[gamma]) |
=ExpVar(lambda;[gamma])
=DistVar("Exp(lambda;[gamma])")
|
Standard Deviation |
ExpStdev(lambda,[gamma]) |
=ExpStdev(lambda;[gamma])
=DistStdev("Exp(lambda;[gamma])")
|
Skewness |
ExpSkew(lambda,[gamma]) |
=DistSkew("Exp(lambda;[gamma])")
|
(Excess) Kurtosis |
ExpKurt(lambda,[gamma]) |
=DistKurt("Exp(lambda;[gamma])")
|
-
The
Options parameter is optional. Possible options: "gamma=value" (example: "gamma=0")
-
The
gamma parameter is optional (the default value is 0).
|