Lucrare Practica - regresia patratica
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Transcript of Lucrare Practica - regresia patratica
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7/24/2019 Lucrare Practica - regresia patratica
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f(t)*t^2
Anii T f(t) t=T- 2001 t^2 t^3 t^4 f(t)*t
2002 1923 1 1 1 1 1923
2003 1428 2 4 8 16 2856
2004 3403 3 9 27 81 10209
2005 2965 4 16 64 256 11860
2006 2746 5 25 125 625 13730
12465 15 55 225 979 40578
f(t) t t^2 n f(t)
f(t)*t t^2 t^3 t f(t)*t
f(t)*t^2 t^3 t^4 t^2 f(t)*t^2
f(t) t t^2 n f(t)
a= f()*t t^2 t^3 b= t f(t)*t
n t t^2 n t
t t^2 t^3 t t^2
t^2 t^3 t^4 t^2 t^3
n t t^2 n t
t t^2 t^3 t t^2
12465 15 55
40578 55 225 671177925 466914800
154352 225 979 502152750 631040625
12465 15 55 520938000 595887930
a= 40578 55 225 1694268675 1693843355
5 15 55
15 55 225 269225 166375
55 225 979 185625 253125
5 15 55 185625 220275
15 55 225 640475 639775
5 12465 55
15 40578 225 198629310 12274845055 154352 979 127340400 173646000
5 12465 55 154254375 183048525
b= 15 40578 225 480224085 479442975
5 15 55
15 55 225 269225 166375
55 225 979 185625 253125
5 15 55 185625 220275
15 55 225 640475 639775
5 15 12465
15 55 40578 42446800 37706625
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55 225 154352 42069375 45650250
5 15 12465 33476850 34729200
c= 15 55 40578 117993025 118086075
5 15 55
15 55 225 269225 166375
55 225 979 185625 253125
5 15 55 185625 220275
15 55 225 640475 639775
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f(t)*t^2 F(t) a+bt+ct^2 607,6+1115,87*t-132
1923 F(1) 1590.543
5712 F(2) 2307.629
30627 F(3) 2758.857
47440 F(4) 2944.229
68650 F(5) 2863.743
154352 F(6) 2517.4 i!"#a$%
t^2 n t f(t)
t^3 t t^2 f(t)*t
t^4 t^2 t^3 f(t)*t^2
t^2 n t f(t)
t^3 c= t t^2 f(t)*t
t^2 n t t^2
t^3 t t^2 t^3
t^4 t^2 t^3 t^4
t^2 n t t^2
t^3 t t^2 t^3
425320 607.6
700
781110 1115.871
700
&'%#( a#'$i
a"tat%)
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7/24/2019 Lucrare Practica - regresia patratica
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-93050 -132.9286
700
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7/24/2019 Lucrare Practica - regresia patratica
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,929*t^2
3 4 5
f(t)
F(t)
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