# PHP - Statistics Module

## List of Functions

PHP − indicates the earliest version of PHP that supports the function.

Sr.No Function & Description
1

stats_absolute_deviation() function

The function can return absolute deviation of an array of values.

2

stats_cdf_beta() function

The function can calculate any one parameter of beta distribution given values for the others.

3

stats_cdf_binomial() function

The function can calculate any one parameter of binomial distribution given values for the others.

4

stats_cdf_cauchy() function

The function can calculate any one parameter of Cauchy distribution given values for the others.

5

stats_cdf_chisquare() function

The function can calculate any one parameter of chi-square distribution given values for the others.

6

stats_cdf_exponential() function

The function can calculate any one parameter of exponential distribution given values for the others.

7

stats_cdf_f() function

The function can calculate any one parameter of F distribution given values for the others.

8

stats_cdf_gamma() function

The function can calculate any one parameter of gamma distribution given values for the others.

9

stats_cdf_laplace() function

The function can calculate any one parameter of Laplace distribution given values for the others.

10

stats_cdf_logistic() function

The function can calculate any one parameter of logistic distribution given values for the others.

11

stats_cdf_negative_binomial() function

The function can calculate any one parameter of negative binomial distribution given values for the others.

12

stats_cdf_noncentral_chisquare() function

The function can calculate any one parameter of non-central chi-square distribution given values for the others.

13

stats_cdf_noncentral_f() function

The function can calculate any one parameter of non-central F distribution given values for the others.

14

stats_cdf_noncentral_t() function

The function can calculate any one parameter of non-central t-distribution given values for the others.

15

stats_cdf_normal() function

The function calculate any one parameter of normal distribution given values for the others.

16

stats_cdf_poisson() function

The function can calculate any one parameter of Poisson distribution given values for the others.

17

stats_cdf_t() function

The function can calculate any one parameter of t-distribution given values for the others.

18

stats_cdf_uniform() function

The function can calculate any one parameter of uniform distribution given values for the others.

19

stats_cdf_weibull() function

The function can calculate any one parameter of Weibull distribution given values for the others.

20

stats_covariance() function

The function can compute the covariance of two data sets.

21

stats_dens_beta() function

The function is probability density function of the beta distribution.

22

stats_dens_cauchy() function

The function is a probability density function of Cauchy distribution.

23

stats_dens_chisquare() function

The function is a probability density function of the chi-square distribution.

24

stats_dens_exponential() function

The function is a probability density function of the exponential distribution.

25

stats_dens_f() function

The function is a probability density function of the F distribution.

26

stats_dens_gamma() function

The function is a probability density function of the gamma distribution.

27

stats_dens_laplace() function

The function is a probability density function of the Laplace distribution.

28

stats_dens_logistic() function

The function is a probability density function of the logistic distribution.

29

stats_dens_normal() function

The function is a probability density function of the normal distribution.

30

stats_dens_pmf_binomial() function

The function is a probability mass function of the binomial distribution.

31

stats_dens_pmf_hypergeometric() function

The function is a probability mass function of the hypergeometric distribution.

32

stats_dens_pmf_negative_binomial() function

The function is a probability density function of negative binomial distribution.

33

stats_dens_pmf_poisson() function

The function is a probability mass function of the Poisson distribution.

34

stats_dens_t() function

The function is a probability density function of the t-distribution.

35

stats_dens_uniform() function

The function is a probability density function of the uniform distribution.

36

stats_dens_weibull() function

The function is a probability density function of the Weibull distribution.

37

stats_harmonic_mean() function

The function can return the harmonic mean of an array of values.

38

stats_kurtosis() function

The function can compute the kurtosis of the data in an array.

39

stats_rand_gen_beta() function

The function can generate a random deviate from the beta distribution.

40

stats_rand_gen_chisquare() function

The function can generate a random deviate from the chi-square distribution.

41

stats_rand_gen_exponential() function

The function can generate a random deviate from the exponential distribution.

42

stats_rand_gen_f() function

The function can generate a random deviate from the F distribution.

43

stats_rand_gen_funiform() function

The function can generate uniform float between low (exclusive) and high (exclusive).

44

stats_rand_gen_gamma() function

The function can generate a random deviate from the gamma distribution.

45

stats_rand_gen_ibinomial() function

The function can generate a random deviate from the binomial distribution.

46

stats_rand_gen_ibinomial_negative() function

The function can generate random deviate from the negative binomial distribution.

47

stats_rand_gen_int() function

The function can generate a random integer between 1 and 2147483562.

48

stats_rand_gen_ipoisson() function

The function can generate a single random deviate from a Poisson distribution.

49

stats_rand_gen_iuniform() function

The function can generate an integer uniformly distributed between LOW (inclusive) and HIGH (inclusive).

50

stats_rand_gen_noncentral_chisquare() function

The function can generate a random deviate from the non-central chi-square distribution.

51

stats_rand_gen_noncentral_f() function

The function can generate a random deviate from the non-central F distribution.

52

stats_rand_gen_noncentral_t() function

The function can generate a single random deviate from a non-central t-distribution.

53

stats_rand_gen_normal() function

The function can generate a single random deviate from a normal distribution.

54

stats_rand_gen_t() function

The function can generate a single random deviate from a t-distribution.

55

stats_rand_get_seeds() function

The function can get the seed values of random number generator.

56

stats_rand_phrase_to_seeds() function

The function can generate two seeds for the RGN random number generator.

57

stats_rand_ranf() function

The function can generate a random floating-point number between 0 and 1.

58

stats_rand_setall() function

The function can set seed values to the random generator.

59

stats_skew() function

The function can compute the skewness of the data in an array.

60

stats_standard_deviation() function

The function can return the standard deviation.

61

stats_stat_binomial_coef() function

The function can return a binomial coefficient.

62

stats_stat_correlation() function

The function can return the Pearson correlation coefficient of two data sets.

63

stats_stat_factorial() function

The function can return the factorial of an integer.

64

stats_stat_independent_t() function

The function can return the t-value from the independent two-sample t-test.

65

stats_stat_innerproduct() function

The function can return an inner product of two vectors.

66

stats_stat_paired_t() function

The function can return the t-value of the dependent t-test for paired samples.

67

stats_stat_percentile() function

The function can return the percentile value.

68

stats_stat_powersum() function

The function can return the power sum of a vector.

69

stats_variance() function

The function can return the variance.

php_function_reference.htm

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