hikyuu2/hikyuu_cpp/hikyuu/indicator/crt/LN.h
2019-11-10 23:31:41 +08:00

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/*
* LN.h
*
* Created on: 2019-4-11
* Author: fasiondog
*/
#pragma once
#ifndef INDICATOR_CRT_LN_H_
#define INDICATOR_CRT_LN_H_
#include "CVAL.h"
namespace hku {
/**
* 求自然对数
* 用法LN(X)以e为底的对数
* 例如LN(CLOSE)求收盘价的对数
* @ingroup Indicator
*/
Indicator HKU_API LN();
Indicator LN(price_t);
Indicator LN(const Indicator& ind);
inline Indicator LN(const Indicator& ind) {
return LN()(ind);
}
inline Indicator LN(price_t val) {
return LN(CVAL(val));
}
} // namespace hku
#endif /* INDICATOR_CRT_LN_H_ */