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R limma:smooth.spline(lambda,pi0,df=smooth.df)中出错:输入中不允许缺少或无限值_R_Limma_Q Value - Fatal编程技术网

R limma:smooth.spline(lambda,pi0,df=smooth.df)中出错:输入中不允许缺少或无限值

R limma:smooth.spline(lambda,pi0,df=smooth.df)中出错:输入中不允许缺少或无限值,r,limma,q-value,R,Limma,Q Value,我有一个数据集用于比较对照组和治疗组,并将limma用于pval。在我得到这样一个数据之前,它对我的大部分数据都很有效。我可以看出控制和治疗之间有区别。但我得到了错误:“smooth.spline中的错误(lambda,pi0,df=smooth.df): 输入中不允许缺少或无限值” 有谁能给我一些建议如何通过错误? 非常感谢 head(df) > Gene ctr_1 ctr_2 tr_1 tr_2 > g1 20.50911 21.95617 2

我有一个数据集用于比较对照组和治疗组,并将limma用于pval。在我得到这样一个数据之前,它对我的大部分数据都很有效。我可以看出控制和治疗之间有区别。但我得到了错误:“smooth.spline中的错误(lambda,pi0,df=smooth.df): 输入中不允许缺少或无限值”

有谁能给我一些建议如何通过错误? 非常感谢

head(df)
> Gene  ctr_1   ctr_2   tr_1    tr_2
> g1    20.50911    21.95617    25.714  25.78235
> g2    18.05096    19.96261    22.49882    23.83518
> g3    22.57205    24.65282    27.58436    29.15457
> g4    18.4146     22.08009    22.75608    25.88455
> g5    16.59619    19.06972    17.20814    22.91926
> g6    19.4405     21.65192    26.57454    27.65457
> g7    18.53613    20.8472     23.27556    24.59854
> g8    16.57177    18.38918    20.04892    21.32175
> g9    16.73278    20.81868    21.16661    24.84625
> g10   17.644      19.89144    22.3238     24.54886

Gene = df$Gene
control<- c("ctr_1","ctr_2")
treatment<- c("tr_1","tr_2")
design <- model.matrix( ~ factor(c(rep(2, 2), rep(1, 2))))
colnames(design) <- c("Intercept", "Diff")
res.eb <- eb.fit(df[, c(treatment,control)], design,Gene)
头部(df)
>基因ctr_1 ctr_2 tr_1 tr_2
>g1 20.50911 21.95617 25.714 25.78235
>g2 18.05096 19.96261 22.49882 23.83518
>g3 22.57205 24.65282 27.58436 29.15457
>g4 18.4146 22.08009 22.75608 25.88455
>g5 16.59619 19.06972 17.20814 22.91926
>g6 19.4405 21.65192 26.57454 27.65457
>g7 18.53613 20.8472 23.27556 24.59854
>g8 16.5717718.38918 20.04892 21.32175
>g9 16.73278 20.81868 21.16661 24.84625
>g10 17.644 19.89144 22.3238 24.54886
基因=df$基因

我的猜测是,你的pvalue分布太奇怪了。做hist(p.mod)看看,如果它太“集中”在低值,那么这就是问题所在。有关更多信息,请参阅。谢谢您的建议,我将阅读链接信息!
eb.fit <- function(dat, design,Gene) {
  n <- dim(dat)[1]
  fit <- lmFit(dat, design)
  fit.eb <- eBayes(fit)
  logFC <- fit.eb$coefficients[, 2]
  df.r <- fit.eb$df.residual
  df.0 <- rep(fit.eb$df.prior, n)
  s2.0 <- rep(fit.eb$s2.prior, n)
  s2 <- (fit.eb$sigma) ^ 2
  s2.post <- fit.eb$s2.post
  t.ord <-
    fit.eb$coefficients[, 2] / fit.eb$sigma / fit.eb$stdev.unscaled[, 2]
  t.mod <- fit.eb$t[, 2]
  p.ord <- 2 * pt(-abs(t.ord), fit.eb$df.residual)
  p.mod <- fit.eb$p.value[, 2]
  q.ord <- qvalue(p.ord)$q
  q.mod <- qvalue(p.mod)$q
  p.adj <-p.adjust(p.mod,method = "BH")
  results.eb <-
    data.frame(Gene,
               logFC,
               t.ord,
               t.mod,
               p.ord,
               p.mod,
               p.adj,
               q.ord,
               q.mod,
               df.r,
               df.0,
               s2.0,
               s2,
               s2.post
               )
  return(results.eb)
}