makemissing function

Create random missing data

Generates missing entries in data.frame/matrix

makemissing(
  data,
  p = 0.2,
  cols = seq_len(ncol(data)),
  rowwise = FALSE,
  nafun = function(x) x,
  seed = NULL
)

Arguments

• data: data.frame
• p: Fraction of missing data in each column
• cols: Which columns (name or index) to alter
• rowwise: Should missing occur row-wise (either none or all selected columns are missing)
• nafun: (Optional) function to be applied on data.frame before return (e.g. na.omit to return complete-cases only)
• seed: Random seed

Returns

data.frame

Author(s)

Klaus K. Holst