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第一列 NAME : 序列的名称,只保留“>”后,第一个空白之前的内容; 第二列 LENGTH: 序列的长度, 单位为bp; 第三列 OFFSET : 第一个碱基的偏移量, 从0开始计数,换行符也统计进行;gff文件中的mRNA start那一列的值 第四列 LINEBASES : 除了最后一行外,
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posted @ 2019-07-23 11:18
YUANya
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其中: 参数-a用于指定建立索引的算法: bwtsw 适用于>10M is 适用于参考序列<2G (默认-a is) 可以不指定-a参数,bwa index会根据基因组大小来自动选择合适的索引方法 .amb is text file, to record appearance of N (or ot
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posted @ 2019-07-23 11:07
YUANya
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6.3 Working with Normally Distributed Variables As illustrated in the previous example, the 68.26-95.44-99.74 rule allows us to obtain useful informat
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posted @ 2019-07-22 21:42
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6.2 Areas Under the Standard Normal Curve Property 4: Almost all the area under the standard normal curve lies between −3 and 3 Because the standard n
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posted @ 2019-07-22 21:18
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6.1Introducing Normally Distributed Variables Why the word “normal”? Because, in the last half of the nineteenth century,researchers discovered that i
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posted @ 2019-07-22 20:34
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数理统计与概率论的关系: 统计学:根据手中信息,猜猜桶里有啥?(样本归纳总结出总体)(样本估计总体(该总体是已经存在的总体)) 概率论:根据桶中信息,猜猜手里有啥?(总体对样本进行预测)(总体预测样本(该样本是未来的样本)) 作者:猴子链接:https://www.zhihu.com/questio
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posted @ 2019-07-22 16:50
YUANya
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5.3 Some Rules of Probability 如图所示,AorB是所有蓝色区域,所以P(AorB)=PA+PB,但是若非互斥事件,则不能直接相加: If you think of the regions as probabilities, the entire region enclo
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posted @ 2019-07-22 16:16
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5.2Events The collection of all 52 cards—the possible outcomes—is called the sample space for this experiment Relationships Among Events More generall
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posted @ 2019-07-22 15:47
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5.1Probability Basics uncertainty is inherent in inferential statistics,因为总是需要样本估计总体,The science of uncertainty is called probability theory.学习概率分布帮助我
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posted @ 2019-07-22 15:21
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4.4 Linear Correlation 若由SxxSyySxy定义则为: 所以为了计算方便: 所以,可以明白的是,Sxx和Sx是不一样的! 所以,t r is independent of the choice of units and always lies between −1 and 1
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posted @ 2019-07-22 13:47
YUANya
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