jobs: build: strategy: matrix: os: [macos-latest, ubuntu-latest, windows-latest] runs-on: ${{ matrix.os }} steps: - name: Check-out repository uses: actions/checkout@v4 - name: Setup Python uses: actions/setup-python@v5 with: python-version: '3.10' cache: 'pip' cache-dependency-pa...
K-Means Clustering is one of the popular clustering algorithm. The goal of this algorithm is to find groups(clusters) in the given data. In this post we will implement K-Means algorithm using Python from scratch. K-Means Clustering K-Means is a very simple algorithm which clusters the data...
PyTorch 2.6.0 ReleaseLatest Jan 29, 2025 + 57 releases Packages No packages published Used by619k + 618,649 Contributors3,677 + 3,663 contributors Languages Python57.0% C++34.9% Cuda3.0% C1.5% Objective-C++1.1% CMake0.7% Other1.8%
标准差则是方差取平方根的结果。 #Array of differences to mean: differencesmeans =np.mean(versicolor_petal_length)*np.ones(len(versicolor_petal_length))differences= versicolor_petal_length -means#Square the differences: diff_sqdiff_sq = differences**2#Compute the mean square difference: variance_exp...
本文是「信用风险建模 inPython」系列的第四篇,其实在之前的 Cufflinks 那篇已经埋下了信用风险的伏笔, 信用组合可视化 信用风险 101 独立模型 - 伯努利模型 独立模型 - 泊松模型 混合模型 - 概述 上两贴介绍了独立模型下的二项模型和泊松模型,它们最大的缺点是不能够捕捉到借贷人之间的违约相关。信贷交易对手都...
The “source code” for a work means the preferred form of the work for making modifications to it. “Object code” means any non-source form of a work. A “Standard Interface” means an interface that either is an official standard defined by a recognized standards body, or, in the ...
In python, we can callnp.ptp()to compute range of data. Range is easily affected by outliers. So it is not an accurate measure of data variablity. x = np.arange(10) np.ptp(x) >9.0 b) Percentiles Percentile, in python, corresponds to the cumulative distribution function(CDF). CDF is...
Python Copy ind[1] The output is:Output Copy 'b' Another example:Python Copy ind[::2] The output is:Output Copy Index(['a', 'c'], dtype='object') But Index objects are immutable, and can't be modified via the normal means:Python Copy ...
kmeans 均值聚类 使用vq函数将样本数据中的每个样本点分配给一个中心点,形成n个聚类vq whiten:白化预处理是一种常见的数据预处理方法,作用是去除样本数据的冗余信息 Normalize a group of observations on a per feature basis. 原理and步骤 是随机选取K个对象作为初始的聚类中心, ...
In this part of our discussion, we'll explore what stub files are and how they contribute to Python typing. Stub files, with the .pyi extension, contain type annotations but no function bodies. This means they provide the necessary type information without including any actual code. These file...