1.2 weka arff数据文件的解释

短命女 2024-04-17 20:57 18阅读 0赞

supervised learning:监督学习

> 用weka做分类预测

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbnlhbndlbm1lbmc_size_16_color_FFFFFF_t_70][]

> 数据 ：weather.numeric.arff temperature和huidity是数字，而不是描述性文字。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbnlhbndlbm1lbmc_size_16_color_FFFFFF_t_70 1][]

> 解释

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbnlhbndlbm1lbmc_size_16_color_FFFFFF_t_70 2][]

会自动统计好最大值、最小值、平均值和标准差。

> weka中的数据格式

@relation weather

@attribute outlook \{sunny, overcast, rainy\}  
@attribute temperature numeric  
@attribute humidity numeric  
@attribute windy \{TRUE, FALSE\}  
@attribute play \{yes, no\}

@data  
sunny,85,85,FALSE,no  
sunny,80,90,TRUE,no  
overcast,83,86,FALSE,yes  
rainy,70,96,FALSE,yes  
rainy,68,80,FALSE,yes  
rainy,65,70,TRUE,no  
overcast,64,65,TRUE,yes  
sunny,72,95,FALSE,no  
sunny,69,70,FALSE,yes  
rainy,75,80,FALSE,yes  
sunny,75,70,TRUE,yes  
overcast,72,90,TRUE,yes  
overcast,81,75,FALSE,yes  
rainy,71,91,TRUE,no

%代表注释，@代表属性解释，数字用numeric,每个属性具体的解释用\{\}括起来。具体的data之间用","进行分隔。

比如glass样例：

@relation Glass  
@attribute 'RI' numeric  
@attribute 'Na' numeric  
@attribute 'Mg' numeric  
@attribute 'Al' numeric  
@attribute 'Si' numeric  
@attribute 'K' numeric  
@attribute 'Ca' numeric  
@attribute 'Ba' numeric  
@attribute 'Fe' numeric  
@attribute 'Type' \{ 'build wind float', 'build wind non-float', 'vehic wind float', 'vehic wind non-float', containers, tableware, headlamps\}  
@data  
1.51793,12.79,3.5,1.12,73.03,0.64,8.77,0,0,'build wind float'  
1.51643,12.16,3.52,1.35,72.89,0.57,8.53,0,0,'vehic wind float'  
1.51793,13.21,3.48,1.41,72.64,0.59,8.43,0,0,'build wind float'  
1.51299,14.4,1.74,1.54,74.55,0,7.59,0,0,tableware

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbnlhbndlbm1lbmc_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/17/b8a881cfd7004440a04921b57c842f84.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbnlhbndlbm1lbmc_size_16_color_FFFFFF_t_70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/17/ebfa6b5aeb6f43d1b71c81fd9b9f5f2f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbnlhbndlbm1lbmc_size_16_color_FFFFFF_t_70 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/17/b23cf2b068e3432f893c404830b12797.png