WHO-Data-Manipulation/Primary School Enrolment_MATLAB at main · Ayushi-Chakrabarty/WHO-Data-Manipulation · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
Signal Operations

1)*******************Auto-correlation*******************

x=VarName1;
y=VarName6;
figure
autocorr(y)
acf=autocorr(y, 'NumLags', 15);
xlabel("Lag")
ylabel("Sample Autocorrelation")
title("Population Number in the year 2005")

2)*******************Cross-Correlation*******************

x=VarName6;
y=Bothsexes;
r=xcorr(x,y)
[c,lags] = xcorr(x,y);
stem(lags,c)
xlabel("Lag")
ylabel("Sample Cross-correlation")

3)*******************Addition of school enrolment ratio of boys and girls in 192 countries*******************

x=VarName1;
y1=Netprimaryschool;
subplot(3,1,1);
plot(x, y1, '-b');
title('Boys enrolment ratio')
y2=VarName12;
subplot(3,1,2);
plot(x,y2, '-m');
title('Girls enrolment ratio')
z=y1+y2;
subplot(3,1,3);
plot(x,z,'-r');
title('Boys and Girls enrolment ratio (%) added')

4)*******************Subtraction of school enrolment ratio of girls from boys in 192 countries*******************

x=VarName1;
y1=Netprimaryschool;
subplot(3,1,1);
plot(x, y1, '-b');
title('Boys enrolment ratio')
y2=VarName12;
subplot(3,1,2);
plot(x,y2, '-m');
title('Girls enrolment ratio')
z=y1-y2;
subplot(3,1,3);
plot(x,z,'-r');
title('Subtraction of enrolment ratios (boys-girls)')

5)*******************Multiplication of signals for 192 values*******************

x=VarName2;
y1=Netprimaryschool;
subplot(3,1,1);
stem(x, y1);
title('Boys enrolment ratio')
y2=VarName12;
subplot(3,1,2);
stem(x,y2);
title('Girls enrolment ratio')
z=y1.*y2;
subplot(3,1,3);
stem(x,z);
title('Multiplication of enrolment ratios')

6)*******************Time Shifting*******************

x=VarName1;
y=VarName7;
a=20;
subplot(3,1,1);
plot(x, y, '-k');
title('Annual Growth Rate for year 1995-2004 ')
axis([-20, 200, 0, 5.0]);
m=x-a;
subplot(3,1,2);
plot(m,y,'-g');
title('Advanced annual growth rate')
axis([-20, 200, 0, 5.0]);
t=x+a;
subplot(3,1,3);
plot(t,y,'-r');
title('Delayed annual growth rate')
axis([-20, 200, 0, 5.0]);

7)*******************Time-reversal*******************

x=VarName1;
y=VarName7;
a=5;
subplot(3,1,1);
plot(x, y, '-k');
title('Annual Growth Rate for year 1995-2004 ')
m=x-a;
subplot(3,1,2);
plot(m,y,'-g');
title('Advanced annual growth rate')
t=-m;
subplot(3,1,3);
plot(t,y,'-m');
title('Reversal of advanced annual growth rate')

8)*******************Time scaling*******************

• Contraction:

x=VarName1;
y=VarName7;
b=2;
subplot(2,1,1);
plot(x, y, '-k');
title('Annual Growth Rate for year 1995-2004 ')
axis([0, 300, -4, 6]);
t=x/b;
subplot(2,1,2);
plot(t,y, '-r');
title('Scaled by 2 annual growth rate')
axis([0,300,-4,6]);

• Expansion:

x=VarName1;
y=VarName7;
b=2;
subplot(2,1,1);
plot(x, y, '-k');
title('Annual Growth Rate for year 1995-2004 ')
axis([0, 500, -4, 6]);
t=x*b;
subplot(2,1,2);
plot(t,y, '-r');
title('Scaled by 2 annual growth rate')
axis([0,500,-4,6]);

9)*******************Convolution*******************

x=VarName1;
y1=Netprimaryschool;
subplot(3,1,1);
plot(x,y1,'-k');
title('Net Primary School enrolment of Boys')
y2=VarName12;
subplot(3,1,2);
plot(x,y2,'-g');
title('Net Primary School enrolment of Girls')
z=conv(y1, y2);
subplot(3,1,3);
plot(z);
title('Convolution')