print(f'feather file read time usage is {f_time_usage :.2f} s') print(f'feather time usage / csv time usage = {f_time_usage/csv_time_usage*100 :.1f}%') 对比结果如下,我们可以看到,Feather的读取耗时不到csv的耗时的1/3。 csv file read time usage is 0.54 s feather file read time...
以下是整个处理流程的类图,展示了所涉及的主要类: DataFrame+create_data()+save_to_feather(file_path: str)+load_from_feather(file_path: str)+filter_data(condition: str)+group_by(column_name: str)FileHandler 状态图 以下是 Feather 文件处理过程的状态图: CreatingDataSavingFeatherLoadingFeatherProcessing...
Feather is a collection of simply beautiful open source icons. Each icon is designed on a 24x24 grid with an emphasis on simplicity, consistency and readability.
Environment Latest Container Image Output 0 B Time # Log Message 3.1s1/opt/conda/lib/python3.7/site-packages/traitlets/traitlets.py:2561: FutureWarning: --Exporter.preprocessors=["nbconvert.preprocessors.ExtractOutputPreprocessor"] for containers is deprecated in traitlets 5.0. You can pass `--Exporter...
# 读取Feather文件data_frame=feather.read_feather('path/to/your/file.feather') 1. 2. read_feather函数接收一个参数,即Feather文件的路径,并返回一个DataFrame对象,其中包括了文件中的数据。 步骤4:数据处理 完成读取后,我们可以对数据进行处理。这里是一个简单的示例,打印出数据的前几行: ...
The following code saves any iterable table as a feather file: usingFeatherFilessave("output.feather", it) This will work as long asitis any of the types supported as sources inIterableTables.jl. Bothloadandsavealso support the pipe syntax. For example, to load a feather file into aDataFra...
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执行读取操作。使用ft.read_feather(’data.feather’)核心代码，将字符串参数替换成实际文件路径。路径中包含中文或特殊字符时，建议使用r”原始字符串格式避免转义错误。读取成功后数据自动转换为DataFrame格式，方便后续处理。处理读取异常。遇到FileNotFoundError提示时，核查文件路径是否包含多余空格或错误扩展名。遇到...
data = read_feather('file.feather') # 显示数据 print(data) 除了读取数据,你还可以使用pandas将数据写入Feather文件: python复制代码 importpandasaspd # 创建数据框 df = pd.DataFrame({'col1': [1,2,3],'col2': [4,5,6]}) # 将数据框写入Feather文件 df.to_feather('file.feather') 或者使用Fe...
When I imported a 423MB csv file (2,148,191 x 35) as a data table and saved it to feather, it created a ~626MB feather file which I could then read in to R easily, and when converting the tbl_df to a data.table it passed identical, let a...