geneFilter(ArrayTools)
geneFilter()所属R语言包:ArrayTools
filter an ExpressionSet using different methods
过滤一个ExpressionSet,用不同的方法
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Create a filtered 'ExpressionSet' based on background, range, or interquartile range
创建一个过滤“ExpressionSet”背景的基础上,范围,或四分范围
用法----------Usage----------
geneFilter(object, pct = 0.1, numChip = ceiling(ncol(exprs(object)) * pct), bg = 4, range = 0, iqrPct = 0, output = FALSE, mydir = getwd())
参数----------Arguments----------
参数:object
an ExpressionSet
ExpressionSet
参数:pct
percentage
百分比
参数:numChip
number of chips. If you would like to filter the ExpressionSet based on at least 3 chips greater than 1 (bg=1), then set numChip = 3
芯片的数目。如果你想过滤ExpressionSet至少3个芯片,大于1(BG = 1),然后设置numChip = 3
参数:bg
background value. If you would like to filter the ExpressionSet based on at least 3 chips greater than 1, then set bg=1
背景值。如果你想过滤ExpressionSet至少3个芯片大于1的基础上,然后设置BG = 1,
参数:range
range = max value - min value of each gene
范围=最大值 - 分钟,每个基因的价值
参数:iqrPct
interquartile percentage
四分位百分比
参数:output
if output = TRUE, output filtered data in the sepecified directory
如果输出= TRUE,输出数据过滤在sepecified目录
参数:mydir
the directory containing the filtered data
包含过滤数据的目录
Details
详情----------Details----------
There are three filtering methods. The User can use either one, two, or three. 1). At least a certain number of chips (numChip) are greater than a given background (bg) 2). The range of the gene have to be greater than a given value (range) 3). Calulating the interquatile range (IQR) of each gene to create an IQR vector. Based on the given percentage (e.g. iqrPct=0.2), find the corresponding percentile. If IQR is less than percentile, the gene will be filtered
有三种过滤方法。用户可以使用一个,两个或三个。 1)。至少有一定的芯片数量(numChip)大于给定的背景(BG)2)。该基因的范围必须大于给定值(范围)3)。采掘工作面的每一个基因的interquatile范围(四分)创建一个四分向量。基于给定的百分比(例如iqrPct = 0.2),找到相应的百分位。如果IQR为比百分较少,基因将被过滤
值----------Value----------
a filtered ExpressionSet
经过筛选的ExpressionSet
作者(S)----------Author(s)----------
Xiwei Wu, Arthur Li
举例----------Examples----------
data(eSetExample)
filtered <- geneFilter(eSetExample)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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