First line of research
Second line of research
Label
Construction domains of RB
Label
Specific criteria of residential buildings
(
RB)
A
Material
A1
Material base
of the load-bearing structures
A2
Use of natural materials
B
Structure
B1
Construction system
B2
Internal disposition of the apartment
B3
Apartment orientation to the cardinal points
B4
Number of floors
B5
Number of apartments per floor
B6
Number of habitable rooms
B7
Floor area
C
Time
C1
Construction time
C2
Speed of moving into an apartment
D
Costs
D1
Operating costs
D2
Total cost of apartment
D3
Price per m
2
of floor area
E
Energy
E1
Energy certificate
E2
Status of green building
The responses in both line of the research were analyzed through descriptive characteristics –
median, modus, variance, mean value and by scheduling wages of importance.
Median is defined as the number in the middle of a given set of numbers arranged in order of
increasing magnitude. When given a set of numbers, the median is the number positioned in
the exact middle of the list when you arrange the numbers from the lowest to the highest. The
median is also a measure of average. In higher level statistics, median is used as a measure of
dispersion. The median is important because it describes the behavior of the entire set of
numbers [8].
=
,
∑
(1)
–
median
a
me
–
bottom limit of the median interval
h
–
range of median interval
r
2
(4)
–
order of the statistical units which will be for the median
n
x
–
frequency of the median interval
∑
n
i
r-1
i=1
–
sum of the absolute frequency into the median interval
Modus is defined as the element that appears most frequently in a given set of elements.
Using the definition of frequency given above, mode can also be defined as the element with
the largest frequency in a given data set. For a given data set, there can be more than one
- 10.1515/sspjce-2016-0011
Downloaded from PubFactory at 08/03/2016 12:12:12PM
via free access
Lenka Sirochmanová, Mária Kozlovská and Renáta Bašková
100
mode. As long as those elements all have the same frequency and that frequency is the
highest, they are all the modal elements of the data set [8].
=
(2)
– modus
a
mo
– bottom limit of the modus interval
h
– range of modus interval
d
0
– the difference in absolute numbers and modus previous range
d
1
– the difference in absolute frequency and of the next modus interval
The variance measures how far each number in the set is from the mean. Variance is
calculated by taking the differences between each number in the set and the mean, squaring
the differences (to make them positive) and dividing the sum of the squares by the number of
values in the set [8].
!
"
#
$
∑
%
& '
!
(
%
%)#
(3)
!
– variance
N
– file range
m
– the number of classes in the file
n
j
– the absolute frequency of the class-j (j = 1,2, ...., m)
x
j
– the character value X, which represents the j-class
Dostları ilə paylaş: |