在Series的值上调用函数。func既可以是Numpy的一元通用函数(ufunc),也可以是只用于单个值的python函数。 DataFrame对象的函数 apply 在DataFrame的行或列上应用函数 Apply a function along an axis of the DataFrame. Objects passed to the function are Series objects whose index is either the DataFrame's index...
Code Sample import numpy import pandas numpy.random.seed(1234) frame = pandas.DataFrame( data=numpy.random.random((5, 3)) ) print( frame ) # Works print( frame.agg(['mean', 'std']) ) # Expected output print( frame.transpose().agg(['mean'...
“rules” of broadcasting see numpy.doc.broadcasting. NumPy fully supports an object-oriented approach, starting, once again, with ndarray. For example, ndarray is a class, possessing numerous methods and attributes. Many of its methods mirror functions in the outer-most NumPy namespace, giving t...
h2o - Helpful H2OFrame class for out-of-memory dataframes. cuDF - GPU DataFrame Library, Intro. cupy - NumPy-like API accelerated with CUDA. ray - Flexible, high-performance distributed execution framework. bottleneck - Fast NumPy array functions written in C. petastorm - Data access library ...
x_np = torch.from_numpy(np_array) 1. 2. (c)From another tensor: The new tensor retains the properties (shape, datatype) of the argument tensor, unless explicitly overridden. 【新张量保留了参数张量的属性(形状、数据类型),除非显式地重写。】 ...
fastmath - A collection of functions for mathematical and statistical computing, macine learning, etc., wrapping several JVM libraries matlib - A Clojure library of optimisation and control theory tools and convenience functions based on Neanderthal.Extra...
Prelude - Swift µframework of simple functional programming tools. Swiftx - Functional data types and functions for any project. Swiftz - Functional programming in Swift. OptionalExtensions - Swift µframework with extensions for the Optional Type. Argo - Functional JSON parsing library for Swift...
QuTiP is open-source software for simulating the dynamics of open quantum systems. The QuTiP library depends on the excellentNumpy,ScipyandCythonnumerical packages. In addition, graphical output is provided byMatplotlibQuTiP aims to provide user-friendly and efficient numerical simulations of a wide var...
import numpy import sys print("Python version:n %sn" % sys.version) def time_function(stmt, setup): """ use module timeit to time functions """ # to enable garbage collection start setup with 'gc.enable();' #setup = 'gc.enable();' + setup ...
NumCpp C++ implementation of the Python Numpy library. random Random for modern C++ with convenient API. spectra A header-only C++ library for large scale eigenvalue problems. universal Universal Number Arithmetic. Memory Management LibraryStarsDescriptionLicense ugc Incremental garbage collector. Mocking ...