initialize_map: Map Initializing

In ZahraSajjad/ElasticMap: Elastic Map Fitting

Description

Function of map initialization. This function perform required data preprocessing (see functions preprocessDataInit and preprocessData). This function defines an initial mapped coordinates.

Usage

init(map, data, type, reduce)

Arguments

map	The map is created by Map Geometry Functions (rect2Dmap)
data	The data is n-by-m matrix with m data points and n coordinates for each point (each column is one data point)
type	The type of initialization: principal component initialization (Pci) or Random.
reduce	is integer. If reduce is positive and is less than n then specified number of the first principal components are used. If 'reduce' is zero and m>n then the first n-1 principal components is used. If 'reduce' is positive and is greater or equal to n or 'reduce' is zero and n>m then dimensionality reduction is not performed. If reduce is negative then reduce PCs are calculated but dimensionality reduction is not performed

Author(s)

zahra Rezaei

See Also

rect2Dmap, preprocessDataInit , preprocessData

Examples

data <- BreastCancer_Data
map <- rect2Dmap(10,10)
Data_Map <- init(map, data,"Pci")

# return principal component of map and map coordinate in the data space

Data_Map$map$map.Pcs
Data_map$map$map.mapped

ZahraSajjad/ElasticMap documentation built on July 26, 2020, 12:38 a.m.