其中vector包含了矩阵的元素,nrow和ncol用以指定行和列的维数,dimnames包含了可选的、以字符型向量表示的行名和列名。选项byrow则表明矩阵应当按行填充(byrow=TRUE)还是按列填充(byrow=FALSE),默认情况下按列填充。 myMatrix myMatrix ## [,1] [,2] [,3] [,4] [,5] ## [1,] 1 4 7 10 13 ##...
x=vector() #创建的为空向量(可以为数值或者字符串) x<-numeirc(0) #长度可变的存储数字的向量 x=character() #创建出来的为字符串向量 x<-NULL; x[1]<-2;…… #每次给x赋值长度自动延长,生成的也为向量 vector(mode="numeric",length=0)定义一个空向量,然后添加元素值 x=matrix(nrow = 2,ncol=3...
The sample hierarchical clustering analysis was performed for DEGs using the pheatmap package (version 1.0.8; https://cran.r-project.org/package=pheatmap). The genes common to 15, 18, and 21 Gy radiotherapy-induced DEGs were identified using the Venn diagram analysis and were regarded as ...
2020. To be included in the study, strains were required to have metadata relating to their source, geographical and temporal origins. Serotypes, Achtman MLST andfimHalleles were also downloaded from Enterobase. Sources were curated in R as well...
This paper presents proofs of the strong law of large numbers and the central limit theorem for estimators of the parameters in quite general finite-parameter linear models for vector time series. The estimators are derived from a Gaussian ...
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showed—besides two distinct gene conversion events in specimens from the arm and hand sites, both of which corrected the 1706delA mutation—a second-site mutation (3782G→C) in an ankle specimen, which prevented the premature ending of the protein by the 3781C→T nonsense mutation (R1226X)...
indeed, the number of cysteins may differ, as well as the conservation of key K/R residues, that have been considered crucial in the interaction with the K+channel [73], may lack. However, the absence of these key residues in functionally active ShKT proteins was already described in ...
Else if \code{\link{FALSE}}, no naming support is done.} \item{drop}{If \code{TRUE} a vector is returned if \code{J == 1}.} } \value{ a \code{\link{numeric}} \code{NxJ} (\code{KxJ}) \code{\link{matrix}}, where N (K) is the number of rows (columns) for which the...