object ImputeBackward extends Imputation
The ImputeBackward object imputes missing values using the subsequent value and slope.
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- val DAMPEN: Double
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- def findLastMissing(x: VectoD, i: Int = -1): (Int, Double)
Return the index of last missing value in vector 'x' from index 'i' and the new imputed value.
Return the index of last missing value in vector 'x' from index 'i' and the new imputed value.
- x
the vector with missing values
- i
the starting index to look for missing value
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- def findMissing(x: VectoD, i: Int = 0): (Int, Double)
Return the index of first missing value in vector 'x' from index 'i' and the new imputed value.
Return the index of first missing value in vector 'x' from index 'i' and the new imputed value.
- x
the vector with missing values
- i
the starting index to look for missing value
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- def impute(x: VectoD, i: Int = -1): (Int, Double)
Impute a value for the first missing value in vector 'x' from index 'i'.
Impute a value for the first missing value in vector 'x' from index 'i'. The type (Int, Double) returns (vector index for imputation, imputed value). Does not modify the vector.
- x
the vector with missing values
- i
the starting index to look for missing values
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- ImputeBackward → Imputation
- def impute(x: MatriD): MatriD
Replace all missing values in matrix 'x' with imputed values.
Replace all missing values in matrix 'x' with imputed values. Will change the values in matrix 'x'. Make a copy to preserve values 'x.copy'.
- x
the matrix with missing values
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- Imputation
- def imputeAll(x: VectoD): VectoD
Replace all missing values (in reverse) in vector 'x' with imputed values.
Replace all missing values (in reverse) in vector 'x' with imputed values.
- x
the vector with missing values
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- ImputeBackward → Imputation
- def imputeAt(x: VectoD, i_: Int): Double
Impute a value for the first missing value in vector 'x' from index 'i' using the next value and slope.
Impute a value for the first missing value in vector 'x' from index 'i' using the next value and slope.
- x
the vector with missing values
- i_
the starting index to look for missing values
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- ImputeBackward → Imputation
- def imputeCol(c: Vec, i: Int = 0): (Int, Any)
Impute a value for the first missing value in column 'c' from index 'i'.
Impute a value for the first missing value in column 'c' from index 'i'. The type (Int, Double) returns (vector index for imputation, imputed value). Does not modify the column.
- c
the column with missing values
- i
the starting index to look for missing values
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- final def isInstanceOf[T0]: Boolean
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- val missVal: Double
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- final def ne(arg0: AnyRef): Boolean
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- def nextVal(x: VectoD, i: Int): Double
Return the next non-missing value in vector 'x' from index 'i'.
Return the next non-missing value in vector 'x' from index 'i'.
- x
the vector to be searched for a non-missing value
- i
the starting index to look for non-missing value
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- def normalMedian(mu: Double, sig2: Double): Double
Return the median of three normally distributed random numbers.
Return the median of three normally distributed random numbers.
- mu
the mean
- sig2
the variance
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- def prevVal(x: VectoD, i: Int): Double
Return the previous non-missing value in vector 'x' from index 'i'.
Return the previous non-missing value in vector 'x' from index 'i'.
- x
the vector to be searched (backwards) for a non-missing value
- i
the starting index to look for non-missing value
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- val q: Int
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- def setDist(dist_: Int): Unit
Set the distance 'dist' to the new value 'dist_'.
Set the distance 'dist' to the new value 'dist_'.
- dist_
the new value for the distance
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- Imputation
- def setMissVal(missVal_: Double): Unit
Set the missing value 'missVal' to the new missing value indicator 'missVal_'.
Set the missing value 'missVal' to the new missing value indicator 'missVal_'.
- missVal_
the new missing value indicator
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