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  • 大小: 2.95MB
    文件類型: .zip
    金幣: 2
    下載: 0 次
    發布日期: 2023-09-10
  • 語言: C/C++
  • 標簽: KNN??C++??

資源簡介

C++實現KNN算法，iris數據集驗證。iris數據集是一個經典的機器學習數據集。

資源截圖

代碼片段和文件信息 

#include
#include
using?namespace?std;


#define?K?5

void?main（）
{
	FILE?*fp;
	float?Iris[60][5]?={
		{5.13.51.40.21}
		{4.931.40.21}
		{4.73.21.30.21}
		{4.63.11.50.21}
		{53.61.40.21}
		{5.43.91.70.41}
		{4.63.41.40.31}
		{53.41.50.21}
		{4.42.91.40.21}
		{4.93.11.50.11}
		{5.43.71.50.21}
		{4.83.41.60.21}
		{4.831.40.11}
		{4.331.10.11}
		{5.841.20.21}
		{5.74.41.50.41}
		{5.43.91.30.41}
		{5.13.51.40.31}
		{5.73.81.70.31}
		{5.13.81.50.31}
		{73.24.71.42}
		{6.43.24.51.52}
		{6.93.14.91.52}
		{5.52.341.32}
		{6.52.84.61.52}
		{5.72.84.51.32}
		{6.33.34.71.62}
		{4.92.43.312}
		{6.62.94.61.32}
		{5.22.73.91.42}
		{523.512}
		{5.934.21.52}
		{62.2412}
		{6.12.94.71.42}
		{5.62.93.61.32}
		{6.73.14.41.42}
		{5.634.51.52}
		{5.82.74.112}
		{6.22.24.51.52}
		{5.62.53.91.12}
		{6.33.362.53}
		{5.82.75.11.93}
		{7.135.92.13}
		{6.32.95.61.83}
		{6.535.82.23}
		{7.636.62.13}
		{4.92.54.51.73}
		{7.32.96.31.83}
		{6.72.55.81.83}
		{7.23.66.12.53}
		{6.53.25.123}
		{6.42.75.31.93}
		{6.835.52.13}
		{5.72.5523}
		{5.82.85.12.43}
		{6.43.25.32.33}
		{6.535.51.83}
		{7.73.86.72.23}
		{7.72.66.92.33}
		{62.251.53}
		}sto[K][2]cmptcmp1f[90][6]js=0;
	int?ijc[3]={000}zh;
	//if（（fp=fopen_s（“Iris90.txt““r“））==NULL）

fopen_s（?&?fp?“Iris90.txt“??“r?“）;
if?（fp==NULL）
	{
		printf（“Can?not?open?the?file\n“）;
	}
	for（i=0;i<90;i++）
	for（j=0;j<5;j++）
	{
	fscanf_s（fp“%f“&f[i][j]）;
	}
	for（z=0;z<90;z++）
	{
		c[0]?=?0;c[1]?=?0;c[2]?=?0;
		for（i=0;i		{
			sto[i][0]?=?sqrt（（Iris[i][0]-f[z][0]）*（Iris[i][0]-f[z][0]）+（Iris[i][1]-f[z][1]）*（Iris[i][1]-f[z][1]）+
				（Iris[i][2]-f[z][2]）*（Iris[i][2]-f[z][2]）+（Iris[i][3]-f[z][3]）*（Iris[i][3]-f[z][3]））;
			sto[i][1]?=?Iris[i][4];
		}
		for（i=0;i			for（j=0;j			{
				if（sto[i][0]>sto[j][0]）
				{
					cmp?=?sto[i][0];
					t?=?sto[i][1];
					sto[i][0]?=?sto[j][0];
					sto[i][1]?=?sto[j][1];
					sto[j][0]?=?cmp;
					sto[j][1]?=?t;
				}
			}
		for（i=K;i<60;i++）
		{
			cmp1?=?sqrt（（Iris[i][0]-f[z][0]）*（Iris[i][0]-f[z][0]）+（Iris[i][1]-f[z][1]）*（Iris[i][1]-f[z][1]）+
				（Iris[i][2]-f[z][2]）*（Iris[i][2]-f[z][2]）+（Iris[i][3]-f[z][3]）*（Iris[i][3]-f[z][3]））;
			if（cmp1			{
				sto[0][0]?=?cmp1;
				sto[0][1]?=?Iris[i][4];
				for（h=0;h????				for（j=0;j					{
						if（sto[h][0]>sto[j][0]）
						{
						cmp?=?sto[h][0];
						t?=?sto[h][1];
						sto[h][0]?=?sto[j][0];
						sto[h][1]?=?sto[j][1];
						sto[j][0]?=?cmp;
						sto[j][1]?=?t;
						}
					}
			}
		}
		for（i=0;i		{
			if（（0.9				c

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-12-05?16:01??kNN算法\
?????目錄???????????0??2017-12-05?16:00??kNN算法\.vs\
?????目錄???????????0??2017-12-05?16:00??kNN算法\.vs\kjinlinq\
?????目錄???????????0??2017-12-05?16:02??kNN算法\.vs\kjinlinq\v15\
?????文件???????19968??2017-12-05?16:02??kNN算法\.vs\kjinlinq\v15\.suo
?????文件?????3178496??2017-12-05?16:02??kNN算法\.vs\kjinlinq\v15\Browse.VC.db
?????目錄???????????0??2017-12-05?16:01??kNN算法\Backup\
?????目錄???????????0??2017-12-05?16:10??kNN算法\Backup\kjinlinq\
?????文件?????????890??2013-12-08?22:56??kNN算法\Backup\kjinlinq.sln
?????目錄???????????0??2017-12-05?16:00??kNN算法\Debug\
?????文件???????36864??2013-12-13?17:49??kNN算法\Debug\kjinlinq.exe
?????文件??????374744??2013-12-13?17:49??kNN算法\Debug\kjinlinq.ilk
?????文件??????584704??2013-12-13?17:49??kNN算法\Debug\kjinlinq.pdb
?????文件???????37916??2017-12-05?16:01??kNN算法\UpgradeLog.htm
?????目錄???????????0??2017-12-05?16:03??kNN算法\kjinlinq\
?????目錄???????????0??2017-12-05?16:03??kNN算法\kjinlinq\.vs\
?????目錄???????????0??2017-12-05?16:03??kNN算法\kjinlinq\.vs\kjinlinq\
?????目錄???????????0??2017-12-05?16:03??kNN算法\kjinlinq\.vs\kjinlinq\v15\
?????文件????????3584??2017-12-05?16:03??kNN算法\kjinlinq\.vs\kjinlinq\v15\.suo
?????文件?????3178496??2017-12-05?16:03??kNN算法\kjinlinq\.vs\kjinlinq\v15\Browse.VC.db
?????目錄???????????0??2017-12-05?16:10??kNN算法\kjinlinq\Backup\
?????目錄???????????0??2017-12-05?16:00??kNN算法\kjinlinq\Debug\
?????文件???????35374??2013-12-13?17:49??kNN算法\kjinlinq\Debug\BuildLog.htm
?????文件?????????663??2013-12-08?22:57??kNN算法\kjinlinq\Debug\kjinlinq.exe.embed.manifest
?????文件?????????728??2013-12-08?22:57??kNN算法\kjinlinq\Debug\kjinlinq.exe.embed.manifest.res
?????文件?????????621??2013-12-13?17:49??kNN算法\kjinlinq\Debug\kjinlinq.exe.intermediate.manifest
?????文件???????47970??2013-12-13?17:49??kNN算法\kjinlinq\Debug\kjinlinq.obj
?????文件??????????65??2013-12-13?17:49??kNN算法\kjinlinq\Debug\mt.dep
?????文件??????232448??2013-12-13?17:49??kNN算法\kjinlinq\Debug\vc90.idb
?????文件??????217088??2013-12-13?17:49??kNN算法\kjinlinq\Debug\vc90.pdb
?????文件????????1626??2013-12-08?21:36??kNN算法\kjinlinq\Iris90.txt
............此處省略11個文件信息

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