triangular distribution

[TD]

I noticed excel does not have a triangular distribution. Is there a way to
develop a triangular distribution since this is used quite a bit in
statistical analysis? I know there are commercial products available but can
I do this in the standard Excel?

 

[B. R.Ramachandran]

Hi,

For an Excel formula for generating Probability Distribution Curve for
Triangular Distribution for a given set of minimum, maximum, and mode values,
see in

www.tech-archive.net/Archive/Excel/microsoft.public.excel.misc/2004-08/3207.html

Regards,
B. R. Ramachandran

 

[B. R.Ramachandran]

Hi,

If A1, B1, and C1 contain respectively, the minimum, mode, and maximum, of a
triangular distribution, and if A3 contains a value x, use the following
formulas:

For the Probability Density Function, P(x),

=MAX(0,IF(A3<$B$1,2*(A3-$A$1)/(($C$1-$A$1)*($B$1-$A$1)),2*($C$1-A3)/(($C$1-$B$1)*($C$1-$A$1))))

and for the Cumulative Distribution Function, D(x)

=IF(A3<$A$1,0,IF(A3<$B$1,(A3-$A$1)^2/(($C$1-$A$1)*($B$1-$A$1)),
IF(A3<=$C$1,1-($C$1-A3)^2/(($C$1-$B$1)*($C$1-$A$1)),1)))


Regards,
B. R. Ramachandran

 

[TD]

Thank you for your help.

Hi,

If A1, B1, and C1 contain respectively, the minimum, mode, and maximum, of a
triangular distribution, and if A3 contains a value x, use the following
formulas:

For the Probability Density Function, P(x),

=MAX(0,IF(A3<$B$1,2*(A3-$A$1)/(($C$1-$A$1)*($B$1-$A$1)),2*($C$1-A3)/(($C$1-$B$1)*($C$1-$A$1))))

and for the Cumulative Distribution Function, D(x)

=IF(A3<$A$1,0,IF(A3<$B$1,(A3-$A$1)^2/(($C$1-$A$1)*($B$1-$A$1)),
IF(A3<=$C$1,1-($C$1-A3)^2/(($C$1-$B$1)*($C$1-$A$1)),1)))


Regards,
B. R. Ramachandran