CalculateApEn function

Calculates Approximate Entropy

WARNING: deprecated function. Calculates Approximate Entropy as indicated by Pincus

CalculateApEn(HRVData,
              indexNonLinearAnalysis = length(HRVData$NonLinearAnalysis),
              m = 2, tau = 1, 
              r = 0.2, N = 1000, verbose=NULL)

Arguments

• HRVData: Data structure that stores the beats register and information related to it
• indexNonLinearAnalysis: Reference to the data structure that will contain the non linear analysis
• m: Value of the dimension of the expansion of data
• tau: Delay of the expansion of data
• r: Distance for calculating correlation
• N: Number of points of the portion of signal to be analyzed
• verbose: Deprecated argument maintained for compatibility, use SetVerbose() instead

Returns

Returns HRVData, the structure that contains beat positions register and now associated heart rate instantaneous values also, including the value of the Approximate Entropy

References

L. Rodriguez-Linares, A. Mendez, M. Lado, D. Olivieri, X. Vila, I. Gomez-Conde, "An open source tool for heart rate variability spectral analysis", Computer Methods and Programs in Biomedicine 103, 39-50, doi:10.1016/j.cmpb.2010.05.012 (2011) S. M. Pincus, "Approximate entropy as a measure of system complexity," Mathematics 88, 2297-2301 (1991)

Author(s)

M. Lado, A. Mendez, D. Olivieri, L. Rodriguez, X. Vila

See Also

BuildTakensVector for expand data

IntegralCorrelation for correlation calculations

AvgIntegralCorrelation for averaging correlation calculations

Note

This function is deprecated . We suggest the use of the CalculateSampleEntropy function instead, which is faster.