df2=np.unique(column_values)# Example 8: Using Set() in pandas DataFramedf2=set(df.Courses.append(df.Fee).values)# Example 9: Using set() methoddf2=set(df.Courses)|set(df.Fee)# Example 10: To get unique values in one series/columndf2=df['Courses'].unique()# Example 11: Using pa...
python # 对去除空值后的DataFrame应用unique函数 unique_values_A = df_cleaned['A'].unique() unique_values_B = df_cleaned['B'].unique() print("Unique values in column A after cleaning:", unique_values_A) print("Unique values in column B after cleaning:", unique_values_B) 4. 输出或...
Python Pandas Programs » Related Tutorials Subtract a year from a datetime column in pandas What is the best way to sum all values in a pandas dataframe? How to access the last element in a pandas series? ImportError: No module named 'xlrd' ...
Python program to find unique values from multiple columns# Importing pandas package import pandas as pd # Creating a dictionary d = { 'Name':['Raghu','Rajiv','Rajiv','Parth'], 'Age':[30,25,25,10], 'Gender':['Male','Male','Male','Male'] } # Creating a DataFrame df = pd....
You can use thedrop_duplicates()function to remove duplicate rows and get unique rows from a Pandas DataFrame. This method duplicates rows based on column values and returns unique rows. If you want toget duplicate rows from Pandas DataFrameyou can useDataFrame.duplicated()function. ...
Python pandas.DataFrame.nunique函数方法的使用 pandas.DataFrame.nunique() 函数用于统计 每一列(或每一行)中唯一值的个数,常用于数据探索阶段了解每列中有多少个不同值。查看每列有多少种不同的取值,判断是否有某些列是常量列(唯一值为 1),用于数据清洗,识别重复值较多的列。本文主要介绍一下Pandas中pandas....
DataFrame(Names) # A new data frame is created from the input different_values = new_dataframe.stack().unique() # Stack function will help to stack the data into one place and unique() function will find the unique values print(different_values) # The different unique values present in ...
slice data frames and assign the values to a new data frame using row numbers and column names. The code assigns the first three rows and all columns in between to the columns named Artist and Released. Creating a new dataframe with iloc slicing In this example, we assign the first two...
In addition, this method can be used to determine a series object with the count of unique values in a definite column. Example: import pandas as pd s_df = pd.DataFrame({'x': [7, 2, 2, 1], 'y': [0, 3, 3, 1]})
Python pandas.DataFrame.nunique用法及代码示例 用法: DataFrame.nunique(axis=0, dropna=True) 计算指定轴中不同元素的数量。 返回具有不同元素数量的系列。可以忽略 NaN 值。 参数: axis:{0 或‘index’,1 或‘columns’},默认 0 要使用的轴。 0 或‘index’ 表示按行,1 或‘columns’ 表示按列。