dbscan函数傻瓜式操作.docx
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dbscan函数傻瓜式操作.docx
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dbscan函数傻瓜式操作
1直接复制在MATLAB中运行
%clusterdata函数
clc,
clearall
closeall
yangben=load('ca.txt');%提取样本
t=size(yangben);%求矩阵行,列数
t1=t
(1);
t2=t
(2);
ca=yangben(:
2:
t2-1);%这里是调用100*9的实验数据(即去除第一列和最后一列)E=yangben(:
t2);
E(find(E==2))=1;
E(find(E==4))=2;
yangbenjieguo=E(:
:
);%为了进行正确率的计算,必须一致。
这里是替换并提取原始结果矩阵a
X=ca;
[class,type]=dbscan(X,2,[])
2.数据,请复制保存为ca.txt.第一列是编号,最后一列是结果。
聚类结束后,请注意转换结果
10025,5,1,1,1,2,1,3,1,1,2
5,4,4,5,7,10,3,2,1,2
3,1,1,1,2,2,3,1,1,2
6,8,8,1,3,4,3,7,1,2
4,1,1,3,2,1,3,1,1,2
8,10,10,8,7,10,9,7,1,4
1,1,1,1,2,10,3,1,1,2
2,1,2,1,2,1,3,1,1,2
2,1,1,1,2,1,1,1,5,2
4,2,1,1,2,1,2,1,1,2
1,1,1,1,1,1,3,1,1,2
2,1,1,1,2,1,2,1,1,2
5,3,3,3,2,3,4,4,1,4
1,1,1,1,2,3,3,1,1,2
8,7,5,10,7,9,5,5,4,4
7,4,6,4,6,1,4,3,1,4
4,1,1,1,2,1,2,1,1,2
4,1,1,1,2,1,3,1,1,2
10,7,7,6,4,10,4,1,2,4
6,1,1,1,2,1,3,1,1,2
7,3,2,10,5,10,5,4,4,4
10,5,5,3,6,7,7,10,1,4
3,1,1,1,2,1,2,1,1,2
1,1,1,1,2,1,3,1,1,2
5,2,3,4,2,7,3,6,1,4
3,2,1,1,1,1,2,1,1,2
5,1,1,1,2,1,2,1,1,2
2,1,1,1,2,1,2,1,1,2
1,1,3,1,2,1,1,1,1,2
3,1,1,1,1,1,2,1,1,2
2,1,1,1,2,1,3,1,1,2
10,7,7,3,8,5,7,4,3,4
2,1,1,2,2,1,3,1,1,2
3,1,2,1,2,1,2,1,1,2
2,1,1,1,2,1,2,1,1,2
10,10,10,8,6,1,8,9,1,4
6,2,1,1,1,1,7,1,1,2
5,4,4,9,2,10,5,6,1,4
2,5,3,3,6,7,7,5,1,4
10,4,3,1,3,3,6,5,2,4
6,10,10,2,8,10,7,3,3,4
5,6,5,6,10,1,3,1,1,4
10,10,10,4,8,1,8,10,1,4
1,1,1,1,2,1,2,1,2,2
3,7,7,4,4,9,4,8,1,4
1,1,1,1,2,1,2,1,1,2
4,1,1,3,2,1,3,1,1,2
7,8,7,2,4,8,3,8,2,4
9,5,8,1,2,3,2,1,5,4
5,3,3,4,2,4,3,4,1,4
11102,10,3,6,2,3,5,4,10,2,4
5,5,5,8,10,8,7,3,7,4
10,5,5,6,8,8,7,1,1,4
11249,10,6,6,3,4,5,3,6,1,4
8,10,10,1,3,6,3,9,1,4
8,2,4,1,5,1,5,4,4,4
5,2,3,1,6,10,5,1,1,4
9,5,5,2,2,2,5,1,1,4
5,3,5,5,3,3,4,10,1,4
1,1,1,1,2,2,2,1,1,2
1116,9,10,10,1,10,8,3,3,1,4
6,3,4,1,5,2,3,9,1,4
1,1,1,1,2,1,2,1,1,2
10,4,2,1,3,2,4,3,10,4
4,1,1,1,2,1,3,1,1,2
5,3,4,1,8,10,4,9,1,4
8,3,8,3,4,9,8,9,8,4
1,1,1,1,2,1,3,2,1,2
11219,5,1,3,1,2,1,2,1,1,2
6,10,2,8,10,2,7,8,10,4
1,3,3,2,2,1,7,2,1,2
9,4,5,10,6,10,4,8,1,4
10,6,4,1,3,4,3,2,3,4
1,1,2,1,2,2,4,2,1,2
1,1,4,1,2,1,2,1,1,2
5,3,1,2,2,1,2,1,1,2
3,1,1,1,2,3,3,1,1,2
2,1,1,1,3,1,2,1,1,2
2,2,2,1,1,1,7,1,1,2
4,1,1,2,2,1,2,1,1,2
5,2,1,1,2,1,3,1,1,2
3,1,1,1,2,2,7,1,1,2
3,5,7,8,8,9,7,10,7,4
5,10,6,1,10,4,4,10,10,4
3,3,6,4,5,8,4,4,1,4
3,6,6,6,5,10,6,8,3,4
4,1,1,1,2,1,3,1,1,2
2,1,1,2,3,1,2,1,1,2
2,1,1,1,2,1,3,1,1,2
1,1,1,1,2,1,3,1,1,2
2,1,1,2,2,1,1,1,1,2
5,1,1,1,2,1,3,1,1,2
9,6,9,2,10,6,2,9,10,4
7,5,6,10,5,10,7,9,4,4
10,3,5,1,10,5,3,10,2,4
2,3,4,4,2,5,2,5,1,4
4,1,2,1,2,1,3,1,1,2
8,2,3,1,6,3,7,1,1,4
10,10,10,10,10,1,8,8,8,4
7,3,4,4,3,3,3,2,7,4
3clusterdata函数,MATLAB中输入typeclusterdata可以查看
functionT=clusterdata(X,vargin)
%CLUSTERDATAConstructclustersfromdata.
%T=CLUSTERDATA(X,CUTOFF)constructsclustersfromdataX.
%XisamatrixofsizeMbyN,treatedasMobservationsofN
%variables.CUTOFFisathresholdforcuttingthehierarchical
%treegeneratedbyLINKAGEintoclusters.When0 %clustersareformedwheninconsistentvaluesaregreaterthan %CUTOFF(seeINCONSISTENT).WhenCUTOFFisanintegerandCUTOFF>=2,%thenCUTOFFisconsideredasthemaximumnumberofclustersto %keepinthehierarchicaltreegeneratedbyLINKAG E.TheoutputTis %avectorofsizeMcontaingaclusternumberforeachobservation.%%T=CLUSTERDATA(X,CUTOFF)isthesameas %Y=pdist(X,'euclid'); %Z=linkage(Y,'single'); %T=cluster(Z,'cutoff',CUTOFF);%%T=CLUSTERDATA(X,'PARAM1',VAL1,'PARAM2',VAL2,...)providesmore %controlovertheclusteringthroughasetofparameter/valuepairs. %Validparametersarethefollowing: %%ParameterValue %'distance'AnyofthedistancemetricnamesallowedbyPDIST %(the'minkowski'optioncanbefollowedbythe %valueoftheexponentP). %'linkage'AnyofthelinkagemethodsallowedbyLINKAG E. %'cutoff'Cutoffforinconsistentordistancemeasure. %'maxclust'Maximumnumberofclusterstoform. %'criterion'Either'inconsistent'or'distance'. %$Revision: 1."1 3." 4.3$ ifnargin<2 error('stats: clusterdata: TooFewInputs','Notenoughinputarguments.'); end %Determinewhichargsgowhere pdistargs={}; linkageargs={}; donelist=[]; ifischar(vargin{1}) j=1; while(j pname=vargin{j}; ifisequal(pname,'distance') pdistargs(end+1)=vargin(j+1); donelist(end+1: end+2)=j: j+1; ifisequal(vargin{j+1},'minkowski') if(length(vargin)>=j+2)&isnumeric(vargin{j+2}) pdistargs(end+1)=vargin(j+2); donelist(end+1)=j+2; j=j+1; end end elseifisequal(pname,'linkage') linkageargs(end+1)=vargin(j+1); donelist(end+1: end+2)=j: j+1; end j=j+2; end vargin(donelist)=[]; end iflength(vargin)==0 error('stats: clusterdata: MissingParameter',... 'MustspecifyaCUTOFForMAXCLUSTvalue.') end ifisempty(pdistargs) pdistargs={'euclid'}; end ifisempty(linkageargs) linkageargs={'single'}; end %Callcalculationroutineswiththeirownargs.Notethatthe %pdistcalculationisdonewithinthelinkagefunction. Z=linkage(X,linkageargs{1},pdistargs); T=cluster(Z,vargin{: });
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