将arff文件打开到weka时出错答案

【问题标题】：Errors when opening arff file into weka将arff文件打开到weka时出错
【发布时间】：2020-06-04 19:36:11
【问题描述】：

每当在 weka 中打开此文件时，都会不断收到“不被识别为“Arff 数据文件”文件的错误。原因：预期数字，阅读 Token[M]，第 16 行。但是，每当我尝试纠正错误时，都会弹出另一个错误。对此很陌生，所以有人会知道我似乎在哪里犯了错误。感谢帮助。

    @RELATION abalone

    @ATTRIBUTE sex REAL
    @ATTRIBUTE length REAL
    @ATTRIBUTE diameter REAL
    @ATTRIBUTE height REAL
    @ATTRIBUTE wholeWeight REAL
    @ATTRIBUTE shuckedWeight REAL
    @ATTRIBUTE visceraWeight REAL 
    @ATTRIBUTE shellWeight REAL
    @ATTRIBUTE rings REAL
    @ATTRIBUTE class   { Male,Female,Infant }


    @DATA
    M,0.455,0.365,0.095,0.514,0.2245,0.101,0.15,15
    M,0.35,0.265,0.09,0.2255,0.0995,0.0485,0.07,7
    F,0.53,0.42,0.135,0.677,0.2565,0.1415,0.21,9
    M,0.44,0.365,0.125,0.516,0.2155,0.114,0.155,10
    I,0.33,0.255,0.08,0.205,0.0895,0.0395,0.055,7
    I,0.425,0.3,0.095,0.3515,0.141,0.0775,0.12,8
    F,0.53,0.415,0.15,0.7775,0.237,0.1415,0.33,20
    F,0.545,0.425,0.125,0.768,0.294,0.1495,0.26,16
    M,0.475,0.37,0.125,0.5095,0.2165,0.1125,0.165,9
    F,0.55,0.44,0.15,0.8945,0.3145,0.151,0.32,19

【问题讨论】：

标签： java database attributes weka arff

【解决方案1】：

您有 10 个属性行，但您的数据中只有 9 个属性。

此外，在您的数据中，代码是 M、F、I，但您在属性声明中已指明它们是男性、女性、婴儿。

我猜你认为你只是将类分配给性别，但 Weka 中的类变量自动是最后一个变量。我已在下面为您重新排列并验证它可以正确加载。

@relation 'abalone'

@attribute length numeric
@attribute diameter numeric
@attribute height numeric
@attribute wholeWeight numeric
@attribute shuckedWeight numeric
@attribute visceraWeight numeric
@attribute shellWeight numeric
@attribute rings numeric
@attribute sex {M,F,I}

@data
0.455,0.365,0.095,0.514,0.2245,0.101,0.15,15,M
0.35,0.265,0.09,0.2255,0.0995,0.0485,0.07,7,M
0.44,0.365,0.125,0.516,0.2155,0.114,0.155,10,M
0.475,0.37,0.125,0.5095,0.2165,0.1125,0.165,9,M
0.53,0.42,0.135,0.677,0.2565,0.1415,0.21,9,F
0.53,0.415,0.15,0.7775,0.237,0.1415,0.33,20,F
0.545,0.425,0.125,0.768,0.294,0.1495,0.26,16,F
0.55,0.44,0.15,0.8945,0.3145,0.151,0.32,19,F
0.33,0.255,0.08,0.205,0.0895,0.0395,0.055,7,I
0.425,0.3,0.095,0.3515,0.141,0.0775,0.12,8,I

【讨论】：