Updated on May 24, 2020 by Arpit Mandliya In this post, we will see how to filter Pandas by column value. You can slice and dice Pandas Dataframe in multiple ways. Table of Contents [hide] Pandas DataFrame sampl
Filter by Column Value:To select rows based on a specific column value, use the index chain method. For example, to filter rows where sales are over 300: Pythongreater_than = df[df['Sales'] > 300] This will return rows with sales greater than 300.Filter by Multiple Conditions:...
df_mask=df["col_name"]=="specific_value" 然後,我們將此掩碼應用於原始 DataFrame 以過濾所需的值。 filtered_df=df[df_mask] 這將返回過濾後的 DataFrame,該DataFrame僅包含具有col_name列的specific_value值的行。 importpandasaspd dates=["April-10","April-11","April-12","April-...
read_excel('学生成绩表信息.xlsm') # 筛选出数学和语文成绩同时大于等于70的学生 filter_data = df[(df['数学成绩'] >= 70) & (df['语文成绩'] >= 70)] print(filter_data) 实例8:数据提取:提取个人性别或者生日信息 import pandas as pd # 创建一个空的DataFrame df = pd.DataFrame(columns=['...
To filter pandas DataFrame by multiple columns, we simply compare that column values against a specific condition but when it comes to filtering of DataFrame by multiple columns, we need to use the AND (&&) Operator to match multiple columns with multiple conditions....
df.filter(items=['Q1', 'Q2']) # 选择两列df.filter(regex='Q', axis=1) # 列名包含Q的列df.filter(regex='e$', axis=1) # 以e结尾的列df.filter(regex='1$', axis=0) # 正则,索引名以1结尾df.filter(like='2', axis=0) # 索引中有2的# 索引...
'A.*':It will filter all the records which starts with the letter'A'. As theregexis defined, we have to use the following piece of code for filtering DataFrame rows: dataframe.column_name.str.match(regex) Note To work with pandas, we need to importpandaspackage first, below is the sy...
6、筛选df.filter() 二、类型操作 1、推断类型 2、指定类型 3、类型转换astype() 4、转为时间类型 4、类型查询筛选 三、数据排序 1、索引排序df.sort_index() 2、数值排序sort_values() 3、混合排序 四、添加修改 1、修改数值 2、替换数据 3、填充空值 4、修改索引名 5、增加列 6、插入列df.insert()...
py in apply(self, f, axes, filter, do_integrity_check, consolidate, **kwargs) 3089 3090 kwargs['mgr'] = self -> 3091 applied = getattr(b, f)(**kwargs) 3092 result_blocks = _extend_blocks(applied, result_blocks) 3093 /Users/Ted/anaconda/lib/python3.6/site-packages/pandas/core/...
To filter Pandas Dataframe rows by Index use filter() function. Use axis=0 as a param to the function to filter rows by index (indices). This function