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rangnummers

Rangnummers is a Dutch term that literally means “rank numbers.” It is used in several fields to denote either the position of an item within an ordered set or a numerical property related to a structure, such as the rank of a mathematical object. Because the term spans disciplines, its exact meaning depends on context.

In mathematics, rang (rank) is most commonly the dimension of the image of a linear transformation, equivalently

In data analysis, information retrieval, and related fields, ranking produces an ordered list of items according

In everyday usage, rangnummers can also denote ordinal positions within a sequence, such as competition standings

the
maximum
number
of
linearly
independent
rows
or
columns
of
a
matrix.
The
phrase
rangnummers
can
refer
to
the
rank
value
itself,
the
set
of
possible
ranks
for
a
given
object
or
family
of
objects,
or
to
a
table
that
lists
ranks
for
various
matrices
or
transformations.
The
rank
provides
a
measure
of
the
dimensionality
or
complexity
of
the
system
being
studied.
to
a
criterion,
and
the
position
of
each
item
in
that
order
is
its
rank
or
rangnummer.
Ranks
are
used
to
compare
items,
assess
performance,
or
drive
decision
rules.
Rankings
can
be
based
on
scores,
relevance,
efficiency,
or
other
measures,
and
the
resulting
rangnummers
typically
start
at
1
for
the
top
item.
(first,
second,
third)
or
any
predefined
ordering.
Because
Dutch
uses
related
terms
in
different
ways,
the
precise
meaning
of
rangnummers
is
context-dependent
and
varies
between
disciplines.