MAplot(MmPalateMiRNA)
MAplot()所属R语言包:MmPalateMiRNA
MA plot
主图
译者:生物统计家园网 机器人LoveR
描述----------Description----------
Plots of the log2 expression ratios (M values) versus the mean log2 expression values (A values) for each probe for each array.
图log2表达率(M值)对每个探针的log2表达的平均值(A值)为每个阵列。
用法----------Usage----------
MAplot(x, ...)
## S4 method for signature 'MAList'
MAplot(
x,
...)
## S4 method for signature 'NChannelSet'
MAplot(
x,
...)
参数----------Arguments----------
参数:x
Either an MAList object or an NChannelSet object
一个MAList对象或NChannelSet对象的
参数:...
arguments to pass to xyplot
参数传递xyplot
Details
详情----------Details----------
The so-called "MA" plot can be used to evaluate whether their is a bias associated with overall intenstity level for each array. Loess smoothed regression lines are superimposed on each plot to demonstrate the trend.
所谓的“马”的图,可以用来评估是否他们是与每个阵列的整体intenstity水平相关联的偏见。黄土平滑回归线叠加在每个图展示的趋势。
方法----------Methods----------
M and A values are stored as matrices in x
M和A值存储为矩阵x
M and A values are calculated from the R and G matrices returned by assayData(x)
M和A和R返回G矩阵计算assayData(x)值
参见----------See Also----------
densityplot for density plots of log2 intensity values, levelplot for pairwise distance plots between arrays, and MADvsMedianPlot for median absolute deviation versus median plots.
densityplot的log2强度值密度图,levelplot阵列,MADvsMedianPlot位数绝对偏差与中位数的图之间成对距离图。
举例----------Examples----------
data(PalateData)
reducedSet <- filterArray(PalateData, keep=c("MIR", "LET", "POSCON", "CALIB"),
frac=1.1, number=3, reps=4)
ndata.quantile <- normalizeBetweenArrays(reducedSet, method="quantile")
res <- MAplot(ndata.quantile)
print(res)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
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