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(* gsl-ocaml - OCaml interface to GSL *)
(* Copyright (©) 2002-2012 - Olivier Andrieu *)
(* Distributed under the terms of the GPL version 3 *)
(** Histograms *)
(** The histogram type *)
type t = private {
n : int; (** number of histogram bins *)
range : float array; (** ranges of the bins ; n+1 elements *)
bin : float array; (** counts for each bin ; n elements *)
}
val check : t -> bool
(** {3 Allocating histograms} *)
val make : int -> t
val copy : t -> t
external set_ranges : t -> float array -> unit
= "ml_gsl_histogram_set_ranges"
external set_ranges_uniform : t -> xmin:float -> xmax:float -> unit
= "ml_gsl_histogram_set_ranges_uniform"
(** {3 Updating and accessing histogram elements} *)
external accumulate : t -> ?w:float -> float -> unit
= "ml_gsl_histogram_accumulate"
val get : t -> int -> float
val get_range : t -> int -> float * float
val h_max : t -> float
val h_min : t -> float
val bins : t -> int
val reset : t -> unit
(** {3 Searching histogram ranges} *)
external find : t -> float -> int = "ml_gsl_histogram_find"
(** {3 Histograms statistics } *)
external max_val : t -> float = "ml_gsl_histogram_max_val"
external max_bin : t -> int = "ml_gsl_histogram_max_bin"
external min_val : t -> float = "ml_gsl_histogram_min_val"
external min_bin : t -> int = "ml_gsl_histogram_min_bin"
external mean : t -> float = "ml_gsl_histogram_mean"
external sigma : t -> float = "ml_gsl_histogram_sigma"
external sum : t -> float = "ml_gsl_histogram_sum"
(** {3 Histogram operations} *)
external equal_bins_p : t -> t -> bool = "ml_gsl_histogram_equal_bins_p"
external add : t -> t -> unit = "ml_gsl_histogram_add"
external sub : t -> t -> unit = "ml_gsl_histogram_sub"
external mul : t -> t -> unit = "ml_gsl_histogram_mul"
external div : t -> t -> unit = "ml_gsl_histogram_div"
external scale : t -> float -> unit = "ml_gsl_histogram_scale"
external shift : t -> float -> unit = "ml_gsl_histogram_shift"
(** {3 Resampling} *)
type histo_pdf = private {
pdf_n : int;
pdf_range : float array;
pdf_sum : float array;
}
val init : t -> histo_pdf
external sample : histo_pdf -> float -> float = "ml_gsl_histogram_pdf_sample"
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