在pandas库中,要对DataFrame按照某一列进行排序,可以使用sort_values()方法,并传递需要排序的列名作为参数。例如:sorted_dataframe = dataframe.sort_values('column_name') 这将按照列column_name的值对DataFrame中的行进行排序,返回一个新的排序后的DataFrame。 其他选项的解释: B. dataframe.sort_by('column_...
>>> import pandas as pd >>> column_subset = [ ... "id", ... "make", ... "model", ... "year", ... "cylinders", ... "fuelType", ... "trany", ... "mpgData", ... "city08", ... "highway08" ... ] >>> df = pd.read_csv( ... "https://www.fueleconomy....
2. How to Sort Pandas Dataframe based on the values of a column (Descending order)? To sort a dataframe based on the values of a column but in descending order so that the largest values of the column are at the top, we can use the argument ascending=False. 1 sort_by_life = gapmin...
C df.sort_by('Column_Name') D df.order_by('Column_Name') 相关知识点: 试题来源: 解析 答案:B 在Pandas中,要按照特定列对DataFrame进行排序,可以使用sort_values()方法。这个方法允许我们按照DataFrame中的一个或多个列的值进行排序。其中,参数by用于指定按照哪一列进行排序,可以是单个列的名称,也可以是...
def remove_col_str(df): # remove a portion of string in a dataframe column - col_1 df['col_1'].replace('', '', regex=True, inplace=True) # remove all the characters after (including ) for column - col_1 df['col_1'].replace(' .*', '', regex=True, inplace=True) ...
百度试题 结果1 题目DataFrame. sort ___ values(by='column')的默认排 序方式是什么? A 升序 B 数值大小 C 降序 D 随机 相关知识点: 试题来源: 解析 A 反馈 收藏
We create a sample DataFramedfwith columns 'Name', 'Age', and 'Salary'. We usesort_values()to sort the DataFrame based on the 'Age' column. By default, it sorts in ascending order. To sort in descending order, we pass theascending=Falseparameter. ...
# Remove NaN values and sort based on col3 df = df.dropna().sort_values(by='col3', key=lambda x: x.str.lower()) print(df) In this example, we created a sample 'Dataframe' object with three columns. The third column ('col3') has a NaN value on the fourth row. We removed ...
如何根据某一列对DataFrame进行排序? O A. df. sort _ values(by='column _ name')O B. dif. sort _ index(by='column _ name')O C. diforder _ by('column _ name')● D. dif. sort('column _ name')相关知识点: 试题来源: 解析 A ...
求助:使用dataframe排序中遇到的问题 近期在处理EXCEL中数据的排序问题,在网上搜到相关资料,可是亲手操作时,发现左侧中index的大小并不会按图片中说的那样排序,求告知是什么原因。 这是搜到的资料中教程图片: 教程中是使用sort进行升序排序,其中df是代表下面的矩阵。若输入图中公式,对于身高相同的数据,排列后会按照...