# Descriptive Statistics

Descriptive statistics function are used to describe the basic features of the time series in a study. They provide simple summaries about the sample and the measures. Together with simple graphics analysis, they form the basis of virtually every quantitative analysis of data.

### Histogram Analysis

A frequency distribution shows how often each different value in a set of data occurs. A histogram is the most commonly used graph to show frequency distributions

## Articles

NDK_ACF
C/C++ .Net int __stdcall NDK_ACF ( double *  X, size_t  N, size_t  K, ...
NDK_ACF_ERROR
C/C++ .Net int __stdcall NDK_ACF_ERROR ( double *  X, size_t  N, size_t  K, ...
NDK_ACFCI
C/C++ .Net int __stdcall NDK_ACFCI ( double *  X, size_t  N, size_t  K, ...
NDK_AVERAGE
C/C++ .Net int __stdcall NDK_AVERAGE ( double *  X, size_t  N, WORD  reserved, ...
NDK_EWMA
C/C++ .Net int __stdcall NDK_EWMA ( double *  X, size_t  N, double  lambda, ...
NDK_EWXCF
C/C++ .Net int __stdcall NDK_EWXCF ( double *  X, double *  Y, size_t  N, ...
NDK_GINI
C/C++ .Net int __stdcall NDK_GINI ( double *  X, size_t  N, double *  retVal  ...
NDK_HURST_EXPONENT
C/C++ .Net int __stdcall NDK_HURST_EXPONENT ( double *  X, size_t  N, double  alpha, ...
NDK_QUANTILE
C/C++ .Net int __stdcall NDK_QUANTILE ( double *  X, size_t  N, double  p, ...
NDK_IQR
C/C++ .Net int __stdcall NDK_IQR ( double *  X, size_t  N, double *  retVal  ...
NDK_LRVAR
C/C++ .Net int __stdcall NDK_LRVAR ( double *  X, size_t  N, size_t  W, ...
C/C++ .Net int __stdcall NDK_MAD ( double *  X, size_t  N, WORD  reserved, ...
NDK_XCF
C/C++ .Net int __stdcall NDK_XCF ( double *  X, double *  Y, size_t  N, ...
NDK_MAPE
C/C++ .Net int __stdcall NDK_MAPE ( double *  X, double *  Y, size_t  N, ...
NDK_MAX
C/C++ .Net int __stdcall NDK_MAX ( double *  X, size_t  N, WORD  reserved, ...
NDK_MD
C/C++ .Net int __stdcall NDK_MD ( double *  pData, size_t  nSize, WORD  reserved, ...
NDK_MIN
C/C++ .Net int __stdcall NDK_MIN ( double *  X, size_t  N, WORD  reserved, ...
NDK_PACF
C/C++ .Net int __stdcall NDK_PACF ( double *  X, size_t  N, size_t  K, ...
NDK_PACF_ERROR
C/C++ .Net int __stdcall NDK_PACF_ERROR ( double *  X, size_t  N, size_t  K, ...
NDK_PACFCI
C/C++ .Net int __stdcall NDK_PACFCI ( double *  X, size_t  N, size_t  K, ...
NDK_RMD
C/C++ .Net int __stdcall NDK_RMD ( double *  X, size_t  N, WORD  reserved, ...
NDK_RMS
C/C++ .Net int __stdcall NDK_RMS ( double *  X, size_t  N, WORD  reserved, ...
NDK_RMSE
C/C++ .Net int __stdcall NDK_RMSE ( double *  X, double *  Y, size_t  N, ...
C/C++ .Net int __stdcall NDK_SAD ( double *  X, double *  Y, size_t  N, ...
NDK_SKEW
C/C++ .Net int __stdcall NDK_SKEW ( double *  X, size_t  N, WORD  reserved, ...
NDK_SSE
C/C++ .Net int __stdcall NDK_SSE ( double *  X, double *  Y, size_t  N, ...
NDK_VARIANCE
C/C++ .Net int __stdcall NDK_VARIANCE ( double *  X, size_t  N, WORD  reserved, ...
NDK_XKURT
C/C++ .Net int __stdcall NDK_XKURT ( double *  X, size_t  N, WORD  reserved, ...