container/float_sequence.fz
# This file is part of the Fuzion language implementation.
#
# The Fuzion language implementation is free software: you can redistribute it
# and/or modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation, version 3 of the License.
#
# The Fuzion language implementation is distributed in the hope that it will be
# useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
# License for more details.
#
# You should have received a copy of the GNU General Public License along with The
# Fuzion language implementation. If not, see <https://www.gnu.org/licenses/>.
# -----------------------------------------------------------------------
#
# Tokiwa Software GmbH, Germany
#
# Source code of Fuzion standard library feature float_sequence
#
# Author: Michael Lill (michael.lill@tokiwa.software)
#
# -----------------------------------------------------------------------
# NYI
# mode
# Mean (geometric harmonic)
# quartile
# ...
# float_sequence -- a Sequence whose elements inherit from float
#
public float_sequence(public F type : float,
redef from Sequence F) : numeric_sequence F from is
# create a list from this Sequence.
#
public redef as_list => from.as_list
# the standard deviation of the sequence
# https://en.wikipedia.org/wiki/Standard_deviation
public std_dev =>
variance.map (x -> F.sqrt x)
# the euclidean norm of this sequence
# i.e. the square of the sum of squares of this sequence
#
public euclidean_norm F =>
F.sqrt ((map (x)->x**F.two).fold F.sum)
last changed: 2024-03-07