计算距离矩阵 使用Bray-Curtis距离计算样本之间的距离矩阵: import numpy as np from skbio.diversity import beta_diversity # 进行PCoA分析 基于上面的距离矩阵,进行主坐标分析(PCoA): from skbio.stats.ordination import pcoa # 进行PCoA分析 pcoa_results 计算Alpha多样性 计算香农多样性指数: from skbio.diversity.alpha import shannon # 示例数据:每行表示一个样本,每列表示一个物种的丰度 data =
from skbio.diversity import beta_diversityfrom skbio.stats.ordination import pcoafrom skbio.stats.distance matplotlib.pyplot as pltimport matplotlibimport seaborn as snsimport sysimport argparseimport mathfrom skbio.stats.distance def pcoa_df(self, data_matrix, index_col, variables): # data_matrix: the skbio style matrix fed # this function is to perform pcoa analysis on the skbio-style matrix. def permanova_test(self, data_matrix, index_col, variable): # data_matrix: the skbio style matrix
以前,系统发育被加载为skbio.TreeNode对象,以确认系统发育代表整个特征表,但最新版本的unifrac执行相同的检查。这将加速QIIME 2中的β系统发育方法。
Nat Meth 10(10): 996-998. http://scikit-bio.org/docs/latest/generated/skbio.diversity.alpha.html https
matplotlib.pyplot as plt import numpy as np import pandas as pd import seaborn as sns import shapefile import skbio