/*
求和，平均值，求有效值（減了均值的），最大值，最小值，峰峰值，峭度。
*/

#include?“basic_algorithm.h“
#include
#include?
#define?N?16384???//?0-500Hz采樣點數(shù)
//const?int?N=6;
#include
//封裝find_mean函數(shù)。
NAG_DLL_EXOIMP?void?NAG_CALL?Csharp_find_mean（double?a[]int?n）
{
	find_mean（an）;
}
double??find_mean（double?a[]int?n）?//平均值ok
{
	double?sum_a=sum（an）;
	return?sum_a/n;

}

double??find_max（double?*aint?n）?//最大值ok
{
	double?max_value=a[0];
	int?i;
	for?（i=1;i	{
		if（a[i]?>?max_value）
		{
			//printf（“最大值=%f----i=%d---a[i]=%f\n“max_valueia[i]）;
			max_value=a[i];
				
		}
	}
	return?max_value;

}
//----------------------------------------------------
double??find_min（double?a[]int?n）?//ok
{
	double?min_value=a[0];
	int?i;
	for?（i=1;i	{
		if（a[i]			min_value=a[i];
	}
	return?min_value;

}
//static?double?b[6]={0};
double??find_rms（double?a[]int?n）?//ok
{
	//sqrt（sum（x.^2）/N）find_mean（double?a[]int?n）
	int?i;
	double?mean;
	double?b[N]={0};
	mean=find_mean（an）;

	for?（i=0;i	{
		b[i]=a[i]-mean;
	}
//	static?double?b[6]={0};/放在這里會出錯。
	for?（i=0;i	{
		b[i]=pow（b[i]2）;
		//printf（“---a----=%f“a[i]）;
		//printf（“--b------=%f\n“b[i]）;
	}
	
	return?sqrt（sum（bn）/n）;
}


double??find_Peak_to_Peak（double?a[]int?n）?//峰峰值ok
{
	return?find_max（an）-find_min（an）;
	
}

double??find_Kurtosis（double?a[]int?n）?//峭度值ok
{
	int?i;
	double?qd2=0;
	double?qd[N]={0};
	//double?qd2[N]={0};
	double?mean=find_mean（an）;
	for?（i=0;i	{
		qd[i]=a[i]-mean;//除均值
	}
	for?（i=0;i	{
		qd[i]=pow（qd[i]4）;
	?}
	return?sum（qdn）/n/（pow（find_rms（an）4））;
}



double?sum（double?a[]int?n）//ok
{
	double?sum=0.0;
	int?i;
	for?（i=0;i	{
		sum=sum+a[i];
	}
		//sum=sum+*a++;
	//printf（“c-------------=%f\n“c）;
	return?sum;//a[1]=sum;
	
}

double?arccosh（double?x）//反雙曲余弦
{
	//xx=pow（x2）+1;
	return?log（x+sqrt（pow（x2）+1））;

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????25186304??2016-12-29?21:44??DLL_test\DLL_test.sdf
?????文件?????????891??2016-12-29?13:52??DLL_test\DLL_test.sln
?????文件??????101888??2016-12-29?21:44??DLL_test\DLL_test.suo
?????目錄???????????0??2016-12-29?16:28??DLL_test\DLL_test\
?????文件????????2076??2016-12-29?16:36??DLL_test\DLL_test\basic_algorithm.c
?????文件?????????518??2016-12-29?16:36??DLL_test\DLL_test\basic_algorithm.h
?????文件??????????80??2016-12-29?13:52??DLL_test\DLL_test\DLL_test.cpp
?????文件????????5028??2016-12-29?17:03??DLL_test\DLL_test\DLL_test.vcxproj
?????文件????????1597??2016-12-29?16:28??DLL_test\DLL_test\DLL_test.vcxproj.filters
?????文件?????????143??2016-12-29?13:52??DLL_test\DLL_test\DLL_test.vcxproj.user
?????文件?????????389??2016-12-29?13:52??DLL_test\DLL_test\dllmain.cpp
?????文件????????1992??2016-12-29?13:52??DLL_test\DLL_test\ReadMe.txt
?????目錄???????????0??2016-12-29?21:43??DLL_test\DLL_test\Release\
?????文件???????11075??2016-12-29?21:43??DLL_test\DLL_test\Release\basic_algorithm.obj
?????文件????????3002??2016-12-29?21:43??DLL_test\DLL_test\Release\cl.command.1.tlog
?????文件???????23416??2016-12-29?21:43??DLL_test\DLL_test\Release\CL.read.1.tlog
?????文件????????1522??2016-12-29?21:43??DLL_test\DLL_test\Release\CL.write.1.tlog
?????文件????????1192??2016-12-29?21:43??DLL_test\DLL_test\Release\DLL_test.Build.CppClean.log
?????文件?????????381??2016-12-29?21:43??DLL_test\DLL_test\Release\DLL_test.dll.intermediate.manifest
?????文件??????????56??2016-12-29?21:43??DLL_test\DLL_test\Release\DLL_test.lastbuildstate
?????文件????????3243??2016-12-29?21:43??DLL_test\DLL_test\Release\DLL_test.log
?????文件???????31394??2016-12-29?21:43??DLL_test\DLL_test\Release\DLL_test.obj
?????文件?????????713??2016-12-29?21:43??DLL_test\DLL_test\Release\DLL_test.vcxprojResolveAssemblyReference.cache
?????文件?????????251??2016-12-29?21:43??DLL_test\DLL_test\Release\DLL_test.write.1.tlog
?????文件???????31862??2016-12-29?21:43??DLL_test\DLL_test\Release\dllmain.obj
?????文件????????1798??2016-12-29?21:43??DLL_test\DLL_test\Release\link.command.1.tlog
?????文件????????3426??2016-12-29?21:43??DLL_test\DLL_test\Release\link.read.1.tlog
?????文件?????????826??2016-12-29?21:43??DLL_test\DLL_test\Release\link.write.1.tlog
?????文件?????????444??2016-12-29?21:43??DLL_test\DLL_test\Release\mt.command.1.tlog
?????文件?????????720??2016-12-29?21:43??DLL_test\DLL_test\Release\mt.read.1.tlog
?????文件?????????262??2016-12-29?21:43??DLL_test\DLL_test\Release\mt.write.1.tlog
............此處省略13個文件信息