# Gravity Model and Scalogram Analysis Methods

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Planning is the process of thinking
about and organizing the activities to
achieve a desired goal. The process include
input, process and output. Planning involves
the creation and maintenance of a plan. As
such, planning is a fundamental property of
intelligent behaviour. This thought process
is essential to the creation and refinement of
a plan or integration of it with other plan.

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Based on the requirements to obtain the best
results according to the purpose, then the use and
enrichment of appropiate and optimal methods in
spatial analysis is very substantial and urgen

G   RAVITY MODEL

The theory of gravity was introduced by
Issac Newton in 1686. New-ton postulated
that the gravitational force which acts
between two bodies inspace was in direct
proportion to the mass of the two bodies and
ininverse proportion to the square of the
distance between the bodies

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G     RAVITY MODEL

•The gravity model is a mathematical theory that can be used
to predict the amount of interaction between two places,
in relation to their distance apart.
•It is based on Newton’s second law of gravitation.
The gravity model creates a parallel between human behaviour
and the behaviour of atomic particles.
•The gravity model has been the most widely used formula mainly
because it is simple in concept and because it
has been well documented.

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SCALOGRAM
• A methods that presented first by Gultzman.
• The method was used to measure the levels of
urbanity from an urban area, thats indicated by the
presence of infastructure and facilities that are a part
of the city. (usually represented by sub-districts)
• Can demonstrate the centralistic of an region by
assuming that the concentration are the ability of the
region (sub-district) in the provision of various
goods and services with a wide range.
• The size on skalogram should had single
dimension, thats mean objective to each case

SCALOGRAM
3 Approachment of Scalogram Methods :

Exist-Not Exist Approachment

Weighting Approachment

Combination Approachment

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Description: Gravity Model from Isaac Newton and Scalogram Analysis Methods from Gultzman,