Page 409 - Contributed Paper Session (CPS) - Volume 2

CPS1911 Nurkhairary A. M. et al.
The values of the variable in the model are estimated with iteration
procedure and given by

The concentration parameter is derived based on the maximum likelihood
method as well. It is given by

In 2003, Caires and Wyatt noted that the correction factor for the estimate
of concentration parameter. Thus the correction factor of the concentration
for this model becomes where is the number of equations in the
(+1)
simultaneous relationship. Therefore, the estimation of the error concentration
parameter is

3. Result
In the preliminary analysis, we perform univariate analysis where the
distribution of the north east wind direction is described graphically using rose
diagram. Figures 2 to 4 show the rose diagram for the years 2015 to 2017.
From the plots, the pattern is different for each of the year. If our aim is to
study the relationship of the three data sets, one can consider the
simultaneous linear functional relationship model.
For the three consecutive years of 2015, 2016 and 2017, the wind direction
data of Kota Kinabalu in northeast monsoon is plotted in rose diagram in
Figure 2, 3 and 4, respectively. Rose diagram is a circular chart to display data
that contain direction. It looks like a pie chart but the observations fall in the
range of angles.

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