Draw matrix of thetas to test

Description

The possible weights to be considered is a sequence from 0 (favour auxiliary data) to 1 (favour primary data). Each possible combination of weights for nclass classes must be tested. The thetas function produces a weight matrix for nclass columns (one for each class) with all possible weight combinations (number of rows).

Usage

thetas(nclass, by = 0.5, length.out, verbose = TRUE)

Arguments

Value

A matrix with all possible theta weight combinations.

Author(s)

Lisa Breckels

Examples

dim(thetas(4, by = 0.5))
dim(thetas(4, by = 0.2))
dim(thetas(5, by = 0.2))
dim(thetas(5, length.out = 5))
dim(thetas(6, by = 0.2))

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
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Platform: x86_64-pc-linux-gnu (64-bit)

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> library(pRoloc)
Loading required package: MSnbase
Loading required package: BiocGenerics
Loading required package: parallel

Attaching package: 'BiocGenerics'

The following objects are masked from 'package:parallel':

    clusterApply, clusterApplyLB, clusterCall, clusterEvalQ,
    clusterExport, clusterMap, parApply, parCapply, parLapply,
    parLapplyLB, parRapply, parSapply, parSapplyLB

The following objects are masked from 'package:stats':

    IQR, mad, xtabs

The following objects are masked from 'package:base':

    Filter, Find, Map, Position, Reduce, anyDuplicated, append,
    as.data.frame, cbind, colnames, do.call, duplicated, eval, evalq,
    get, grep, grepl, intersect, is.unsorted, lapply, lengths, mapply,
    match, mget, order, paste, pmax, pmax.int, pmin, pmin.int, rank,
    rbind, rownames, sapply, setdiff, sort, table, tapply, union,
    unique, unsplit

Loading required package: Biobase
Welcome to Bioconductor

    Vignettes contain introductory material; view with
    'browseVignettes()'. To cite Bioconductor, see
    'citation("Biobase")', and for packages 'citation("pkgname")'.

Loading required package: mzR
Loading required package: Rcpp
Loading required package: BiocParallel
Loading required package: ProtGenerics

This is MSnbase version 1.20.7 
  Read '?MSnbase' and references therein for information
  about the package and how to get started.


Attaching package: 'MSnbase'

The following object is masked from 'package:stats':

    smooth

The following object is masked from 'package:base':

    trimws

Loading required package: MLInterfaces
Loading required package: annotate
Loading required package: AnnotationDbi
Loading required package: stats4
Loading required package: IRanges
Loading required package: S4Vectors

Attaching package: 'S4Vectors'

The following objects are masked from 'package:base':

    colMeans, colSums, expand.grid, rowMeans, rowSums

Loading required package: XML
Loading required package: cluster

This is pRoloc version 1.12.4 
  Read '?pRoloc' and references therein for information
  about the package and how to get started.

> png(filename="/home/ddbj/snapshot/RGM3/R_BC/result/pRoloc/thetas.Rd_%03d_medium.png", width=480, height=480)
> ### Name: thetas
> ### Title: Draw matrix of thetas to test
> ### Aliases: thetas
> 
> ### ** Examples
> 
> dim(thetas(4, by = 0.5))
Weigths:
  (0, 0.5, 1)
[1] 81  4
> dim(thetas(4, by = 0.2))
Weigths:
  (0, 0.2, 0.4, 0.6, 0.8, 1)
[1] 1296    4
> dim(thetas(5, by = 0.2))
Weigths:
  (0, 0.2, 0.4, 0.6, 0.8, 1)
[1] 7776    5
> dim(thetas(5, length.out = 5))
Weigths:
  (0, 0.25, 0.5, 0.75, 1)
[1] 3125    5
> dim(thetas(6, by = 0.2))
Weigths:
  (0, 0.2, 0.4, 0.6, 0.8, 1)
[1] 46656     6
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>