How to use the GAMMADIST function
Author: Oscar Cronquist Article last updated on October 23, 2018
The GAMMADIST function calculates the gamma often used in queuing analysis in probability statistics.
This function is outdated and has been replaced by the GAMMA.DIST function which was introduced in Excel 2010.
Formula in cell C7:
=GAMMADIST(C3,C4,C5,C6)
Excel Function Syntax
GAMMADIST(x,alpha,beta,cumulative)
Arguments
| x | Required. |
| alpha | Required. |
| beta | Required. 1 returns the standard gamma distribution. |
| cumulative | Required. A boolean value. TRUE - cumulative distribution function FALSE - probability density function |
Comments
The GAMMADIST function returns
- #VALUE! error value if alpha, beta or x is non-numeric.
- #NUM! error value if:
- x < 0 (zero)
- alpha <= 0 (zero)
- beta <= 0 (zero)
The equation to calculate the gamma probabiltiy density function:
The standard gamma probability function:
Functions in this article
Functions in 'Compatibility' category
The GAMMADIST function function is one of many functions in the 'Compatibility' category.
Calculates the beta distribution, it represents outcomes in the form of probabilities.
Calculates the inverse of the beta distribution.
Calculates the individual term binomial distribution probability
Calculates the probability of the chi-squared distribution.
Calculates the inverse probability of the chi-squared distribution.
Calculates the test for independence, the value returned from the chi-squared statistical distribution and the correct degrees of freedom. Use this function to check if hypothesized results are valid.
Calculates the confidence interval for a population mean, using a normal distribution.
Calculates the covariance meaning the average of the products of deviations for each pair in two different datasets.
Calculates the minimum value for which the binomial distribution is equal to or greater than a given threshold value.
Calculates the F probability of the right-tailed distribution for two tests.
Rounds a number down, toward zero, to the nearest multiple of significance.
Calculates a value based on existing x and y values using linear regression. Use this function to predict linear trends.
Calculates the value from an F-test. The value shows if the variances from two data sets are not significantly different.
Calculates the gamma often used in queuing analysis (probability statistics).
Calculates the cumulative lognormal distribution of argument x, based on a normally distributed ln(x) with the arguments of mean and standard_dev.
Calculates the most frequent number in a cell range.
Calculates the percent rank of a given number compared to the whole data set.
Calculates the rank of a specific number compared to a list of numbers.
Calculates the standard deviation of a group of values.
Excel function categories
Excel functions that let you resize, combine, and shape arrays.
Functions for backward compatibility with earlier Excel versions. Compatibility functions are replaced with newer functions with improved accuracy. Use the new functions if compatibility isn't required.
Perform basic operations to a database-like structure.
Functions that let you perform calculations to Excel date and time values.
Let's you manipulate binary numbers, convert values between different numeral systems, and calculate imaginary numbers.
Calculate present value, interest, accumulated interest, principal, accumulated principal, depreciation, payment, price, growth, yield for securities, and other financial calculations.
Functions that let you get information from a cell, formatting, formula, worksheet, workbook, filepath, and other entitites.
Functions that let you return and manipulate logical values, and also control formula calculations based on logical expressions.
These functions let you sort, lookup, get external data like stock quotes, filter values based a condition or criteria, and get the relative position of a given value in a specific cell range. They also let you calculate row, column, and other properties of cell references.
You will find functions in this category that calculates random values, round numerical values, create sequential numbers, trigonometry, and more.
Calculate distributions, binomial distributions, exponential distribution, probabilities, variance, covariance, confidence interval, frequency, geometric mean, standard deviation, average, median, and other statistical metrics.
Functions that let you manipulate text values, substitute strings, find string in value, extract a substring in a string, convert characters to ANSI code among other functions.
Get data from the internet, extract data from an XML string and more.
Excel categories
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