Tramp_fish的博客

Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)解决方案:conda install -c conda-forge ffmpeg

1.from sklearn.feature_extraction import DictVectorizerDictVectorizer(sparse=False).fit_transform(data.to_dict(orient='record'))2.from sklearn.preprocessing import LabelEncoder,OneHotEncoderlb_f = LabelEncoder().fit_transform(data)OneHotEnc

缺失值的常用处理方式：1.对包含缺失值的列和行数据进行删除df.dropna()2.对缺失值数据进行所在列的中位数、众数、平均值等进行填充#对所有列的缺失值数据进行平均值填充df.fillna(df.mean())#对指定列的缺失值进行平均值填充df.fillna(df["指定列索引"].mean())3.对缺失值周围的数据进行模型训练，然后通过模型对缺失值进...

import numpy as npimport pandas as pd#pandas读取csv文件dataset = pd.read_csv("../datasets/Data.csv")print(dataset.head())X = dataset.iloc[:,:-1].valuesY = dataset.iloc[:,3].valuesprint("X:",X)p...