我想使用下面的代码可视化我的功能。但是,我收到一个错误,即我的功能被识别为“nan”而不是它们的实际名称。
而不是下面Feature = [and then writing the features that I want],我正在分配 feature = data [0,1:]。这是我的数据中包含特征的第一行。我有许多不想写成字符串但只想直接从数据文件中提取的功能。我怎样才能做到这一点并获取功能的名称而不是“nan”?
# Load the dataset
data = load_data('credit')
# Specify the features of interest
features = [
'limit', 'sex', 'edu', 'married', 'age', 'apr_delay', 'may_delay',
'jun_delay', 'jul_delay', 'aug_delay', 'sep_delay', 'apr_bill', 'may_bill',
'jun_bill', 'jul_bill', 'aug_bill', 'sep_bill', 'apr_pay', 'may_pay', 'jun_pay',
'jul_pay', 'aug_pay', 'sep_pay',
]
# Extract the instances and target
X = data[features]
y = data.default
from yellowbrick.features import Rank1D
# Instantiate the 1D visualizer with the Sharpiro ranking algorithm
visualizer = Rank1D(features=features, algorithm='shapiro')
visualizer.fit(X, y) # Fit the data to the visualizer
visualizer.transform(X) # Transform the data
visualizer.poof() # Draw/show/poof the data