Class: DimRed

DimRed

An object to track data and changes for dimensionality reduction

Constructor

new DimRed(Mat)

Parameters:
Name Type Description
Mat MiniMat The data matrix to operate on
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Methods

(static) cgreat(x, y)

a static comparison function for array arithmetic, returns true if first param is greater than the second
Parameters:
Name Type Description
x float a number to compare
y float a number to compare
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(static) cless(x, y)

a static comparison function for array arithmetic, returns true if first param is less than the second
Parameters:
Name Type Description
x float a number to compare
y float a number to compare
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(static) mean(arr)

a static mean function for array arithmetic, returns mean
Parameters:
Name Type Description
arr Array.<Object> an array of floats to find mean
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(static) missing(arr)

Determine missing data ratio of an array for missing data filter
Parameters:
Name Type Description
arr Array.<Object> an array of floats to find missing data ratio of
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(static) radd(x, y)

a static add function for array arithmetic, returns sum
Parameters:
Name Type Description
x float a number to add
y float a number to add
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(static) variance(arr)

Determine variance of an array for low variance filter
Parameters:
Name Type Description
arr Array.<Object> an array of floats to find variance of
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filter(fil_fcnopt, parameteropt, comparisonopt)

in place filter method with adjustable parameter
Parameters:
Name Type Attributes Default Description
fil_fcn function <optional>
a function to filter upon
parameter parameter <optional>
1 a paramater to compare the filter against
comparison function <optional>
a function which returns true when data is desired to be kept, given filter(col) and the paramater
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filter_promise(fil_fcnopt, parameteropt, comparisonopt)

async manager for filter dimensionality reduction; returns a promise.
Parameters:
Name Type Attributes Default Description
fil_fcn function <optional>
a function to filter upon
parameter parameter <optional>
1 a paramater to compare the filter against
comparison function <optional>
a function which returns true when data is desired to be kept, given filter(col) and the paramater
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