filter.by.distance: Identify remote points
In ClairBee/AS.preprocessing: ArchStats: pre-processing map data for angle extraction
Description
Usage
Arguments
Value
Examples
Description
For a set of x and y coordinates, find the distance to the nearest neighbour. Extremely isolated points (outliers) are defined in the same way as in a boxplot: any points whose nearest-neighbour distance lies more than 1.5 x the IQR above the third quartile.
Usage
1
filter.by.distance(pts, plot = F)
Arguments
pts
A two-column matrix containing the coordinates of the points to be compared.
plot
Boolean indicator: should the new set of features be displayed on a plot?
Value
A Boolean array of length n that can be used to filter points or angles. TRUE indicates that the point is particularly remote from its nearest neighbours; FALSE indicates that point is relatively close to its neighbours.
Examples
1
nn.filter <- filter.by.distance(centres, plot = T)
ClairBee/AS.preprocessing documentation built on May 6, 2019, 11:50 a.m.
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Description Usage Arguments Value Examples
Description
For a set of x and y coordinates, find the distance to the nearest neighbour. Extremely isolated points (outliers) are defined in the same way as in a boxplot: any points whose nearest-neighbour distance lies more than 1.5 x the IQR above the third quartile.
Usage
1 | filter.by.distance(pts, plot = F)
|
Arguments
pts |
A two-column matrix containing the coordinates of the points to be compared. |
plot |
Boolean indicator: should the new set of features be displayed on a plot? |
Value
A Boolean array of length n that can be used to filter points or angles. TRUE indicates that the point is particularly remote from its nearest neighbours; FALSE indicates that point is relatively close to its neighbours.
Examples
1 | nn.filter <- filter.by.distance(centres, plot = T)
|
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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