rowDenseRank

Syntax

rowDenseRank(X, [ascending=true], [ignoreNA=true], [percent=false])

Please see Row-Based Functions for the parameters and calculation rules.

Arguments

X is a matrix.

ascending is a Boolean value indicating whether to sort in ascending order. It is an optional parameter and the default value is true.

ignoreNA is a Boolean value indicating whether NULL values are ignored in ranking and return NULL. When NULL values participate in ranking, NULL values return 0, which is the smallest value in the result.

percent is a Boolean value, indicating whether to display the returned rankings in percentile form. The default value is false.

Details

rowDenseRank can be viewed as function denseRank applied on rows instead of columns. It returns the consecutive rank of each element in each row.

Examples

$ m = matrix(1 5 8 5 9, 2 8 2 5 2, 6 5 3 3 4)
$ rowDenseRank(m)

col1

col2

col3

0

1

2

0

1

0

2

0

1

1

1

0

2

0

1

$ y=matrix(1 3 3, 6 5 6, NULL 0 9)
$ rowDenseRank(y)

col1

col2

col3

0

1

1

2

0

0

1

2

$ rowDenseRank(y, ignoreNA=false)

col1

col2

col3

1

2

0

1

2

0

0

1

2

Related function: denseRank, rowRank