/HRVKit/HRVAnalysis.h

//
//  HRVAnalysis.h
//  HRVAnalysis
//
//  Created by Alex Shaykevich on 17/03/12.
//  Copyright (c) 2012 YOM. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <Accelerate/Accelerate.h>

#define R_FFT_LENGTH 256
#define R_DETRENDDIMENSION 256
#define R_SR 4
#define SLIDE_LENGTH 12

#define HRV_KEY @"hf_key"
#define AVG_HRV_KEY @"avg_hf_key"
#define HRV_DICT_KEY @"r_dict_key"

#define R_AVG_NUM 7

#define R_DEF_MHR 70
#define TOL 10


@class OrderedDictionary;
@class HRVResult;
@interface HRVAnalysis : NSObject {
    FFTSetupD mFftSetup; 
        DSPDoubleSplitComplex mFftComplexBuffer;
    double* hamming;
    double* detrendMatrix;
    
    int log2n;
    
    OrderedDictionary* data;
    double* buffer;
    double* rbuffer;
    double* results;
    double* totalResults;
    
    int avgCount;
    NSMutableArray* avgArray;
    
    double totalTime; // in seconds
    double windowLength;
    double slideLength;
    double nextInterestingTime;
    BOOL first;
    
    // for the ectopic beat detection
    float mhr;
    float ihrp;
    
    int resultIndex;
    int avgResultIndex;
    
    NSMutableArray* rrArray;
    
    BOOL filter;
    
        dispatch_queue_t hrvQue;
    NSTimer* timer;
}

@property float mhr;

@property BOOL filter;

-(void)addRR:(double)rr;

-(NSArray*)rr;

-(HRVResult*)calculateResult;


@end