selectHKs(NormqPCR)
selectHKs()所属R语言包:NormqPCR
Selection of reference/housekeeping genes
选择参考/管家基因
译者:生物统计家园网 机器人LoveR
描述----------Description----------
This function can be used to determine a set of reference/housekeeping (HK) genes for gene expression experiments
此功能可用于确定参考/家政(香港)基因组基因表达的实验
用法----------Usage----------
selectHKs(qPCRBatch, ...)
## S4 method for signature 'qPCRBatch'
selectHKs(qPCRBatch, group, method = "geNorm", minNrHKs = 2, log = TRUE, Symbols,
trace = TRUE, na.rm = TRUE)
参数----------Arguments----------
参数:qPCRBatch
qPCRBatch, containing the data (expression matrix) in the exprs slot
qPCRBatch,包含数据(表达矩阵在exprs插槽)
参数:...
Extra arguments, detailed below
额外的参数,下面详细介绍
参数:group
optional factor not used by all methods, hence may be missing
可选的因素,不是所有的方法,因此可能会丢失
参数:method
method to compute most stable genes
最稳定的基因的方法来计算
参数:minNrHKs
minimum number of HK genes that should be considered
最低数量应被视为香港基因
参数:log
logical: is data on log-scale
逻辑:大规模log数据
参数:Symbols
gene symbols
基因符号
参数:trace
logical, print additional information
逻辑,打印的其他信息
参数:na.rm
a logical value indicating whether NA values should be stripped before the computation proceeds.
一个逻辑值,指示是否NA值前应计算收益剥离。
Details
详情----------Details----------
This function can be used to determine a set of reference/housekeeping (HK) genes for gene expression experiments. The default method "geNorm" was proposed by Vandesompele et al. (2002).
此功能可以用来确定一个参考/家政(香港)基因组的基因表达实验。默认的方法"geNorm"提出由Vandesompele等。 (2002年)。
Currently, the geNorm method by Vandesompele et al. (2002) and the NormFinder method of Andersen et al. (2004) are implemented.
目前,由Vandesompele等的geNorm方法。 (2002年)和Andersen等NormFinder的方法。 (2004年)的贯彻落实。
Vandesompele et al. (2002) propose a cut-off value of 0.15 for the pairwise variation. Below this value the inclusion of an additional housekeeping gene is not required.
vandesompele等人。 (2002)提出一个成对的变化为0.15的临界值。低于此值包含一个额外的看家基因并不是必需的。
值----------Value----------
If method = "geNorm" a list with the following components is returned
如果method = "geNorm"以下组件列表返回
参数:ranking
ranking of genes from best to worst where the two most stable genes cannot be ranked
基因的排名从最佳到最差的两个最稳定的基因不能被排名
参数:variation
pairwise variation during stepwise selection
成对的变化过程中逐步选择
参数:meanM
average expression stability M
平均表达稳定中号
If method = "NormFinder" a list with the following components is returned
如果method = "NormFinder"以下组件列表返回
参数:ranking
ranking of genes from best to worst where the two most stable genes cannot be ranked
基因的排名从最佳到最差的两个最稳定的基因不能被排名
参数:rho
stability measure rho of Andersen et al. (2004)
Andersen等措施稳定RHO。 (2004年)
作者(S)----------Author(s)----------
Matthias Kohl <a href="mailto:Matthias.Kohl@stamats.de">Matthias.Kohl@stamats.de</a>
参考文献----------References----------
normalization of real-time quantitative RT-PCR data by geometric averaging of multiple internal control genes. Genome Biology 2002. 3(7):research0034.1-0034.11. http://genomebiology.com/2002/3/7/research/0034/
Normalization of Real-Time Quantitative Reverse Transcription-PCR Data: A Model-Based Variance Estimation Approach to Identify Genes Suited for Normalization, Applied to Bladder and Colon Cancer Data Sets. CANCER RESEARCH 64, 5245-5250, August 1, 2004. http://cancerres.aacrjournals.org/cgi/content/full/64/15/5245
举例----------Examples----------
data(geNorm)
tissue <- as.factor(c(rep("BM", 9), rep("FIB", 20), rep("LEU", 13),
rep("NB", 34), rep("POOL", 9)))
res.BM <- selectHKs(geNorm.qPCRBatch[,tissue == "BM"], method = "geNorm",
Symbols = featureNames(geNorm.qPCRBatch), minNrHK = 2, log = FALSE)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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