importing numpy import numpy as np # output random value out_val = np.random.random_sample() print ("Output random float value : ", out_val) Output random float value : 0.2450768662139805 import numpy as geek # output array out_arr = geek.random.random_sample(size =(1, 3)) print ("...
AI检测代码解析 from matplotlib import pyplot as plt plt.figure() us_income['Mean'].plot(kind = 'kde') t_distribution = stats.t(ks[0], ks[1],ks[2]) x = np.linspace(t_distribution.ppf(0.01), t_distribution.ppf(0.99), 100) plt.plot(x, t_distribution.pdf(x), c='orange') plt...
tf.random_normal([2,3], stddev=2):生成矩阵为2*3,均值为0,标准差为2的随机数。 正态分布:若随机变量X服从一个数学期望为μ、方差为σ^2 的正态分布,记为N(μ,σ^2)。其概率密度函数为正态分布的期望值μ决定了其位置,其标准差σ决定了分布的幅度。当μ = 0,σ = 1时的正态分布是标准...My...
1280 Words 6 Pages Open Document #!/usr/bin/python import sys import operator from decimal import * def get_top_most_frequent_ngrams(n_grams, f): """ Get the top f most frequent n-grams """ sorted_n_grams = sorted(n_grams.items(), key=operator.itemgetter(1)) sorted_n_grams.rev...
建议做语言学研究的朋友全面转向贝叶斯方法 | 建议没试过Bayesian regression的朋友扔掉手里的ordinary linear model,拥抱贝叶斯方法。模型构建非常straightforward,基于posterior distribution能下的结论远比基于MLE的传统回归多,而且模型构建非常灵活。唯一的缺点就是慢,速度取决于硬件、算法、sample/chain的数量,大约比传统...
1) 基于Python的开源软件 a) PyTorch, 由Facebook AI Research开发的深度学习库, 支持基于CPU和GPU进行高效张量运算并提供可灵活修改模型结构的动态计算图, 包含许多深度学习模型和算法, 详见官网: https://pytorch.org/. b) TensorFlow, 由Google Brain团队开发的机器学习平台, 支持GPU和TPU等硬件加速计算并能够进...
You can test installing the distribution files. Make a new virtualenv, and install directly from one of the files: python -m pip install /path/to/pkgsample-0.1.0-py3-none-any.whl Now you should be able to import and run your modules. Cleaning up The dist/ and build/ directories are...
Z-test: a parametric test that can be used to compare themeans of two groups. It is based on thenormal distributionand assumes that the data are normally distributed and thesample sizes are large. Independent T-test: a parametric test that can be used to compare themeans of two...
Tutorial (MULTIseqDemux):Demultiplex samples based on classification method from MULTI-seq 2. Cell Ranger for 10x Genomics CellPlex (CMO)Only the cell-containing barcodes filtered based on gene expression UMIs are used for CMO tag assignment. Tag counts are modeled into a normal distribution for...
example: 统计每户房子占有人数:可知该变量属于右偏分布: household size is far from being normally distributed; it is right skewed. Nonetheless, according to the central limit theorem, the samplingdistribution of the sample mean can be approximated by a normal distribution whenthe sample size is relat...