我一直在尝试对数据的单列进行标签编码时收到 CountDownTimer(long millisInFuture, long countDownInterval)
// Example : I've set countdown for 30 seconds
CountDownTimer countDownTimer = new CountDownTimer(30000, 1000) {
public void onTick(long millisUntilFinished) {
text_view.setText(millisUntilFinished / 1000 + " " + "Sec");
}
public void onFinish() {
// implement your code customization here after interval is over
text_view.setText("time over!");
}
}.start();
。这是我的代码:
SettingWithCopyWarning
我修改了最后一行以使用X = df[['age', 'population']]
labelencoder = LabelEncoder()
X['age'] = labelencoder.fit_transform(X['age'])
和.loc
执行相同的操作,但是我仍然收到相同的警告。我相信我可能正在做连锁分配,但我对这个概念的理解不足以解决警告。任何帮助将不胜感激,谢谢!