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Module Biocaml_cel (.ml)

Affymetrix's CEL files. Only text format supported. Binary file must be converted using Affymetrix's conversion tool. This tool does not change file extension, so be sure your file really is in text format.

module Biocaml_cel:
sig
type t
The type of a CEL file.
exception Bad of string
Raised when encountering ill-formed CEL type.
val of_file : string -> t
Parse given file if possible. Raise Bad if there are any parse errors.
val of_file_opt : string -> t option
Parse given file if possible.

Operations on Intensity Section

type idata = {
   mean : float; (*mean intensity value*)
   stdv : float; (*standard deviation of intensity*)
   npixels : int; (*number of pixels used in mean/stdv calculation*)
} 
type irow = {
   xcoord : int; (*x-coordinate*)
   ycoord : int; (*y-coordinate*)
   idata : idata;
}
Represents row in intensity section
val ifold : ('a -> irow -> 'a) -> 'a -> t -> 'a
ifold f a t folds over data rows in intensity section of t.
val iiter : (irow -> unit) -> t -> unit
iiter f t iterates over the rows in intensity section of t.
val data : Biocaml_bpmap.t ->
       t list ->
       (Biocaml_bpmap.probe * (idata * idata) list) list
data bpmap cels returns a list associating probes with pairs of (PM,MM) idata in each of the given cel files (in the same order of course). Raise Failure if any file in cels lacks a value for any probe in bpmap.
val pm_mm : Biocaml_bpmap.t ->
       t list -> (Biocaml_bpmap.probe * float list) list
Similar to Biocaml_cel.data but the data returned are the PM-MM mean intensity values in cels.
val pm : Biocaml_bpmap.t ->
       t list -> (Biocaml_bpmap.probe * float list) list
Similar to Biocaml_cel.data but the data returned are the PM mean intensity values in cels.
val mm : Biocaml_bpmap.t ->
       t list -> (Biocaml_bpmap.probe * float list) list
Similar to Biocaml_cel.data but the data returned are the MM mean intensity values in cels.
end