object MissingValues
The MissingValues
object is used to replace missing values in a dataset.
- See also
www.utexas.edu/cola/prc/_files/cs/Missing-Data.pdf
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def
estimateStats(xy: Table, missingCol: String, missingStr: String = "?"): (Double, Double)
Estimate the mean and variance for the column in table 'xy' having missing values.
Estimate the mean and variance for the column in table 'xy' having missing values.
- xy
the table/relation with missing values
- missingCol
the name of column having missing values
- missingStr
the string used to denote a missing value (defaults to '?')
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def
replaceMissingValues(xy: Table, ignore: Seq[Int], missingCol: String, missingStr: String = "?"): Table
Replace missing values in column 'missingCol' of table 'xy' and return a new table 'xy2' with the replaced values and excluded columns removed.
Replace missing values in column 'missingCol' of table 'xy' and return a new table 'xy2' with the replaced values and excluded columns removed.
- xy
the table/relation with missing values
- ignore
the columns to ignore/exclude
- missingCol
the name of column having missing values
- missingStr
the string used to denote a missing value (defaults to '?')
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