Characteristics of time series, Mathematics

Assignment Help:

Characteristics of Time Series

Time series has the given characteristics.

a) A long term trend (T) -tendency of the whole series to fall and rise.

b) Seasonal variation (S) - short term periodic fluctuations in values. For example, in middle Asia maize yield is high in November and extremely in March or matatus have better business on Friday and extremely low on Sundays.

c) Cyclical variation (C) - These are medium term changes caused by factors that apply for a while then disappear, and come back again in a repetitive cycle. For illustration, drought hits US every 7 years.

Note that cyclic variation has a longer term than seasonal variation for example, seasonal variation may occur once every year while cyclic variation occurs once every some years.

d) Random residual variation (R) - These are non-recurring random variations for example, war, coup, and fire.

For exact forecasts these aspects are qualified separately that is T, C, S and R from data. It is known as time series or time decomposition analysis

The separate elements are then combined to produce a forecast.


Related Discussions:- Characteristics of time series

Circumcircle problem, find the radius of circumcircle of an equilateral tri...

find the radius of circumcircle of an equilateral triangle of 6root3 one side.

Find the interval of validity, Solve the subsequent IVP and find the interv...

Solve the subsequent IVP and find the interval of validity for the solution. y' + (4/x) y = x 3 y 2 ,       y(2) = - 1,  x > 0 Solution Thus, the first thing that we re

Definition of laplace transforms, You know that it's all the time a little ...

You know that it's all the time a little scary while we devote an entire section just to the definition of something. Laplace transforms or just transforms can appear scary while w

Definition of vertical asymptote, Vertical asymptote Definition : The funct...

Vertical asymptote Definition : The function f(x) will contain a vertical asymptote at x = a if we contain any of the following limits at x = a .   x→a- Note as well that it

Rhjuu, Ask questutfjion #Minimum 100 words accepted#

Ask questutfjion #Minimum 100 words accepted#

Law of Cosines, The law of cosines can only be applied to acute triangles. ...

The law of cosines can only be applied to acute triangles. Is this true or false?

Tangent lines, Recall also which value of the derivative at a specific valu...

Recall also which value of the derivative at a specific value of t provides the slope of the tangent line to the graph of the function at that time, t. Thus, if for some time t the

Fraction, give some examples of fractions that are already reduce

give some examples of fractions that are already reduce

Factoring polynomials, Factoring polynomials is probably the most important...

Factoring polynomials is probably the most important topic. We already learn factor of polynomial .If you can't factor the polynomial then you won't be able to even start the probl

Math, i need help in math

i need help in math

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd