blockmath.h

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Apache License Version 2.0

Copyright 2007-2011 EcoEquity and Stockholm Environment Institute

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
file except in compliance with the License. You may obtain a copy of the License at

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#ifndef BLOCKMATH
#define BLOCKMATH

#define MAXITER 100
// Note that according to dcdflib, smallest is 2^(-52) = 2.22e-16
#define EPSILON 1.0e-15
// From Abramowitz and Stegun
#define INV_SQRT_2PI 0.3989422804014326779399461


// Manipulating datablocks
struct datablock transform(struct datablock dbin, double (*f)(double), struct appdata ad);

// Calculations
struct datablock binop(struct datablock a, struct datablock b, char op, struct appdata ad);
struct datablock scalmult(double scalar, struct datablock dbin, struct appdata ad);

// Filter
struct timeseries filter(struct datablock data, struct fixedfactor filter, struct appdata ad);
double filteryr(int year, struct datablock data, struct fixedfactor filter, struct appdata ad);

// Auxiliary functions
double gini2sdlog(double gini);
double pnorm(double x);
double quick_qnorm(double p);
double qnorm(double p);
double dnorm(double x);
double ztransf(double y, double ybar, double sigma);

#endif