<TaskClassif:penguins> (344 x 8)
* Target: species
* Properties: multiclass
* Features (7):
- int (3): body_mass_g, flipper_length_mm, year
- dbl (2): bill_depth_mm, bill_length_mm
- fct (2): island, sex
常用task方法
代码
# 查看列结构tsk_penguins$col_info
Key: <id>
id type levels label fix_factor_levels
<char> <char> <list> <char> <lgcl>
1: ..row_id integer <NA> FALSE
2: bill_depth_mm numeric <NA> FALSE
3: bill_length_mm numeric <NA> FALSE
4: body_mass_g integer <NA> FALSE
5: flipper_length_mm integer <NA> FALSE
6: island factor Biscoe,Dream,Torgersen <NA> FALSE
7: sex factor female,male <NA> FALSE
8: species factor Adelie,Chinstrap,Gentoo <NA> FALSE
9: year integer <NA> FALSE
代码
# 查看数据tsk_penguins$data(1:5)
species bill_depth_mm bill_length_mm body_mass_g flipper_length_mm island
<fctr> <num> <num> <int> <int> <fctr>
1: Adelie 18.7 39.1 3750 181 Torgersen
2: Adelie 17.4 39.5 3800 186 Torgersen
3: Adelie 18.0 40.3 3250 195 Torgersen
4: Adelie NA NA NA NA Torgersen
5: Adelie 19.3 36.7 3450 193 Torgersen
sex year
<fctr> <int>
1: male 2007
2: female 2007
3: female 2007
4: <NA> 2007
5: female 2007
代码
# 查看缺失值tsk_penguins$missings()
species bill_depth_mm bill_length_mm body_mass_g
0 2 2 2
flipper_length_mm island sex year
2 0 11 0
<ParamSet>
id class lower upper nlevels default value
<char> <char> <num> <num> <int> <list> <list>
1: use ParamFct NA NA 5 everything
2: method ParamFct NA NA 3 pearson
<ParamSet>
id class lower upper nlevels default value
<char> <char> <num> <num> <int> <list> <list>
1: use ParamFct NA NA 5 everything
2: method ParamFct NA NA 3 pearson spearman