Convert (x,y)-coordinates to single-number indices and back.

Description

Convert (x,y)-coordinates on the chip (and in the CEL file) to the single-number indices used in AffyBatch and CDF environment, and back.

Usage

i2xy(i)
xy2i(x,y)

Arguments

Details

Type i2xy and xy2i at the R prompt to view the function definitions.

See Also

hgu95av2cdf

Examples

  xy2i(5,5)
  i     = 1:(640*640)
  coord = i2xy(i)
  j     = xy2i(coord[, "x"], coord[, "y"])
  stopifnot(all(i==j))
  range(coord[, "x"])
  range(coord[, "y"])

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(hgu95av2cdf)

Warning messages:
1: replacing previous import 'AnnotationDbi::tail' by 'utils::tail' when loading 'hgu95av2cdf' 
2: replacing previous import 'AnnotationDbi::head' by 'utils::head' when loading 'hgu95av2cdf' 
> png(filename="/home/ddbj/snapshot/RGM3/R_BC/result/hgu95av2cdf/geometry.Rd_%03d_medium.png", width=480, height=480)
> ### Name: i2xy
> ### Title: Convert (x,y)-coordinates to single-number indices and back.
> ### Aliases: i2xy xy2i
> ### Keywords: datasets
> 
> ### ** Examples
> 
>   xy2i(5,5)
[1] 3206
Warning message:
xy2i is deprecated and will be removed in the next BioC release.
Use xy2indices in the affy package instead. 
>   i     = 1:(640*640)
>   coord = i2xy(i)
Warning message:
i2xy is deprecated and will be removed in the next BioC release.
Use indices2xy in the affy package instead. 
>   j     = xy2i(coord[, "x"], coord[, "y"])
Warning message:
xy2i is deprecated and will be removed in the next BioC release.
Use xy2indices in the affy package instead. 
>   stopifnot(all(i==j))
>   range(coord[, "x"])
[1]   0 639
>   range(coord[, "y"])
[1]   0 639
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>