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表2
原标题:Subset of a matrix as.numeric in R for log2
  • 时间:2011-11-18 22:04:21
  •  标签:
  • r
  • numeric

在170个变量中,我有54675个斜体的数据汇总表(data)。 我也想做事。

data.matrix.2 <- log2(data[,9:ncol(data)]) 

i.即第9栏及以后的数值。 前面的8栏是性质。 我发现以下错误:

Error in Math.data.frame(data.matrix[, 9:ncol(data)]) : 
  non-numeric variable in data frame: 

是否有办法将矩阵的子集作为变数的数值处理。

增 编

问题回答

我的第一项想法是,你ten了一种特性矩阵,需要:

as.numeric(data.matrix.2[ , -(1:8) ])

......但数据.matrix()应胁迫采用数字方式。 页: 1 您使用这些数据。 矩阵功能......因此最好不要使用“数据.matrix”的名称,因为这也是R功能的名称。

你正在适当使用“[,]”,因此,你对数据标的假设可能存在缺陷。 其余162列必须有一个数据栏,作为因素或特性。 你们需要掌握体(数据.matrix),看看它/什么。





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