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In practice, we often encounter the problem of array splicing. concatenate based on numpy library is a very useful array operation function. 1,concatenate((a1, a2, … ), axis=0) details of official documents concatenate(...) concatenate((a1, a2, ...), axis=0) Join a sequence of arrays along an existing axis. Parameters ...

Article directory Grouping and aggregation 1. GroupBy object ·Parameters in the groupedby function: GroupBy object group iteration = = = "traversal" Other grouping methods polymerization Grouping operation Group and align Statistical calculation yao differential aggregation aggreg ...

Pytorch learning notes (5) -- dimensional transformation of pytorch Foundation Catalog view/reshape Add / delete dimensions - squeeze / unssqueeze Dimension extension - Expand/repeat Dimension transpose ---- transpose/t/permute Catalog view/reshape The usage of view is basically the same as ...

Article directory cycler Course Function link matplotlib Tutorial notes cycler Before we start the tutorial, we need to understand the cycle module from __future__ import print_function from cycler import cycler color_cycler = cycler(color=["r", "g", "b"]) #You can create a cycle object with cycle color_cycler 'col ...

Definition and Creation of Functions  Function is the basic program structure provided by Python to maximize code reuse and minimize code redundancy; it allows programmers toComplex systems are decomposed into manageable components. Four functions can be created in Python:Global functions: defined in templatesLocal functions: nested in oth ...

argparse is a library for parsing command-line options, parameters, and subcommands     Source code comes from Lib/argparse.py   Main functions: 1. Make it easy for users to write command lines 2. argparse knows how to parse these parameters from sys.argv for the parameters required by the program. 3. Aiming at the invalid parameters given to t ...