Record learning process of Python scientific computation

Basic usage of Numpy (import numpy as np)

Assume you have a file names ‘test’ containing the following lines. ———File Begins at below—————————– Name CTCF DnaseI EB A20 106.775 7.25444 2 A18 56.07 14.4547 3 A23 119.992 25.3157 9 A15 124.967 117.176 9 A27 76.4879 12.1073 11 A28 84.4517 12.9363 11 A13 162.313 48.6617 13 A24 121.3 16.5198 16 A10 20.1017 2.73259 20 A25 75.369 31.2857 24 ———File ends at above—————————–

Load files using np.loadtxt()

# In default, np.loadtxt will split columns on white space and return a two dimensional array.
# Column number starts with 0, (1,2,3) indicates the 2nd,3nd and 4th column. 
two_dimensional_array = np.loadtxt('test', usecols=(1,2,3),skiprows=1)
CHENTONG
版权声明:本文为博主原创文章,转载请注明出处。
alipay.png

CHENTONG

CHENTONG
积微,月不胜日,时不胜月,岁不胜时。凡人好敖慢小事,大事至,然后兴之务之。如是,则常不胜夫敦比于小事者矣!何也?小事之至也数,其悬日也博,其为积也大。大事之至也希,其悬日也浅,其为积也小。故善日者王,善时者霸,补漏者危,大荒者亡!故,王者敬日,霸者敬时,仅存之国危而后戚之。亡国至亡而后知亡,至死而后知死,亡国之祸败,不可胜悔也。霸者之善著也,可以时托也。王者之功名,不可胜日志也。财物货宝以大为重,政教功名者反是,能积微者速成。诗曰:德如毛,民鲜能克举之。此之谓也。

R 学习

R语言是比较常用的统计分析和绘图语言,拥有强大的统计库、绘图库和生信分析的Bioconductor库,是学习生物信息分析的必备语言之一。Rstudio是编辑、运行R语言的最为理想的工具之一,支持纯R脚本、Rmarkdown (脚本文档混排)、Bookdown (脚本文档混排...… Continue reading

本地使用Rfam 12.0+

Published on June 16, 2017

Linux学习(一)- 文件和目录

Published on June 08, 2017