Skip to main content
Search
Explore journals
Get published
About BMC
My account
Search all BMC articles
Search
BMC Medical Research Methodology
Home
About
Articles
Submission Guidelines
In Review
Join the Editorial Board
Table 1
Exponential, Weibull and log-logistic distributions
From:
Estimating time-to-onset of adverse drug reactions from spontaneous reporting databases
Distribution
Exponential
Weibull
Log-logistic
Density
f
(
x
) =
λ
e
-
λ
x
(
x
)
=
λ
β
(
λ
x
)
β
-
1
e
(
-
(
λ
x
)
β
)
f
(
x
)
=
λ
β
(
λ
x
)
β
-
1
(
1
+
(
λ
x
)
β
)
2
Support
x
> 0
x
> 0
x
> 0
Parameter(s)
λ
> 0
λ
> 0
λ
> 0
β
> 0
β
> 0
Back to article page
\