discretizeExpressionValues(DFP)
discretizeExpressionValues()所属R语言包:DFP
Function to discretize gene expression data
离散基因表达数据的函数
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Discretizes the gene expression data (float values) into "Low", "Medium" or "High" labels.
离散成“低”的基因表达数据(浮点值),“中等”或“高”的标签。
用法----------Usage----------
discretizeExpressionValues(rmadataset, mfs, zeta = 0.5, overlapping = 2)
参数----------Arguments----------
参数:rmadataset
ExpressionSet with numeric values containing gene expression values (rows) of samples belonging to different categories (columns).<br> The ExpressionSet also contains an AnnotatedDataFrame with metadata regarding the classes to which each sample belongs.
ExpressionSet含有基因的表达值属于不同的类别(列)的样本(行)的数值。参考ExpressionSet还包含一个元数据的AnnotatedDataFrame类每个样品属于。
参数:mfs
Membership functions to determine the discret value (linguistic label) corresponding to a given gene expression level.
隶属函数来确定对应到一个特定的基因表达水平的离散值(语言标签)。
参数:zeta
Threshold value which controls the activation of a linguistic label ('Low', 'Medium' or 'High').<br> The lower, the less posibilities of having genes with more than one assigned linguistic label.<br> Default value = 0.5. Range[0,1].
阈值控制激活一个语言标签(低,中或高)的参考。较低,具有多个指定的语言标签的基因少posibilities。参考<X > Default value = 0.5。
参数:overlapping
Modifies the number of membership functions used in the discretization process.<br> Possible values: <ol> "Low", "Medium", "High".
修改可能参考值:在离散化过程中所使用的隶属函数的数目。<OL>低,中,高。
"Low", "Low-Medium", "Medium", "Medium-High", "High".
“低”,“低中等,中,中高,高。
"Low", "Low-Medium", "Low-Medium-High", "Medium", "Medium-High", "High". </ol> Default value = 2.
“低”,“低中”,“低 - 中 - 高”,“中等”,“中高”,“高”。 </ OL>Default value = 2。
值----------Value----------
Matrix containing discrete values according to the overlapping parameter after discretizing the gene expression values.<br> Includes an attribute <VAR>types</VAR> which determines the category of each sample.
矩阵包含离散值,根据基因表达值离散化后的重叠参数。参考包括属性<VAR>类型,</ VAR的,这就决定了每个样品的类别。
作者(S)----------Author(s)----------
Rodrigo Alvarez-Gonzalez<br>
Daniel Glez-Pena<br>
Fernando Diaz<br>
Florentino Fdez-Riverola<br>
Maintainer: Rodrigo Alvarez-Gonzalez <<a href="mailto:rodrigo.djv@uvigo.es">rodrigo.djv@uvigo.es</a>>
参考文献----------References----------
Patterns for Gene Selection and Data Reduction on Microarray Data. 7th International Conference on Intelligent Data Engineering and Automated Learning: IDEAL 2006, (2006) pp. 1095-1102
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
注1:为了方便大家学习,本文档为生物统计家园网机器人LoveR翻译而成,仅供个人R语言学习参考使用,生物统计家园保留版权。
注2:由于是机器人自动翻译,难免有不准确之处,使用时仔细对照中、英文内容进行反复理解,可以帮助R语言的学习。
注3:如遇到不准确之处,请在本贴的后面进行回帖,我们会逐渐进行修订。
|