urgent help with estimation.

For technical questions regarding estimation of single equations, systems, VARs, Factor analysis and State Space Models in EViews. General econometric questions and advice should go in the Econometric Discussions forum.

Moderators: EViews Gareth, EViews Moderator

ppess
Posts: 1
Joined: Wed Dec 15, 2010 6:27 am

urgent help with estimation.

Postby ppess » Wed Dec 15, 2010 6:59 am

hi,

i am a novice in using eViews, but i need urgent help with estimating this:

logYt=b0+b1log(X1)t+b2log(X2)t+b3log(X3)t+ut


so i enter it into quick-estimate equation like this, with LS principle:
log(y) c log(x1) log(x2) log(x3)

but it comes up with the error:
"insufficient number of estimations"


thanks in advance

EViews Gareth
Fe ddaethom, fe welon, fe amcangyfrifon
Posts: 13605
Joined: Tue Sep 16, 2008 5:38 pm

Re: urgent help with estimation.

Postby EViews Gareth » Wed Dec 15, 2010 7:40 am

I'm assuming it actually says "insufficient number of observations". Which is exactly as it says - you do not have enough valid observations to perform the regression. Do you have a lot of non-positive numbers in your data?

mgharibnavaz
Posts: 1
Joined: Mon Jan 31, 2011 1:45 am

estimating a big system using seemingly unrelated regression

Postby mgharibnavaz » Mon Jan 31, 2011 2:02 am

Hi,

I'm trying to run a big system including 320 equations simultaneously; I think I entered the related data correctly, however, once I try to estimate the system, I faced many errors such as “unmatched parentheses” and likewise “syntax error”, please look at the following equation which is the first equation of the mentioned system, your comments definitely will be helpful,

p1*q11 = c(11)*p1+c(171)*((m1+m2+m3+m4+m5+m6+m7+m8+m9+10+m11+m12+m13+m14+m15+m16+m17+m18+m19+m20)
-( c(11)*p1+c(21)*p2+c(31)*p3+c(41)*p4+c(51)*p5+c(61)*p6+c(71)*p7+c(81)*p8+c(91)*p9+c(101)*p10+c(111)*p11+c(121)*p12+c(131)*p13+c(141)*p14+c(151)*p15+c(161)*p16)
-( c(12)*p1+c(22)*p2+c(32)*p3+c(42)*p4+c(52)*p5+c(62)*p6+c(72)*p7+c(82)*p8+c(92)*p9+c(102)*p10+c(112)*p11+c(122)*p12+c(132)*p13+c(142)*p14+c(152)*p15+c(162)*p16)
-( c(13)*p1+c(23)*p2+c(33)*p3+c(43)*p4+c(53)*p5+c(63)*p6+c(73)*p7+c(83)*p8+c(93)*p9+c(103)*p10+c(113)*p11+c(123)*p12+c(133)*p13+c(143)*p14+c(153)*p15+c(163)*p16)
-( c(14)*p1+c(24)*p2+c(34)*p3+c(44)*p4+c(54)*p5+c(64)*p6+c(74)*p7+c(84)*p8+c(94)*p9+c(104)*p10+c(114)*p11+c(124)*p12+c(134)*p13+c(144)*p14+c(154)*p15+c(164)*p16)
-( c(15)*p1+c(25)*p2+c(35)*p3+c(45)*p4+c(55)*p5+c(65)*p6+c(75)*p7+c(85)*p8+c(95)*p9+c(105)*p10+c(115)*p11+c(125)*p12+c(135)*p13+c(145)*p14+c(155)*p15+c(165)*p16)
-( c(16)*p1+c(26)*p2+c(36)*p3+c(46)*p4+c(56)*p5+c(66)*p6+c(76)*p7+c(86)*p8+c(96)*p9+c(106)*p10+c(116)*p11+c(126)*p12+c(136)*p13+c(146)*p14+c(156)*p15+c(166)*p16)
-( c(17)*p1+c(27)*p2+c(37)*p3+c(47)*p4+c(57)*p5+c(67)*p6+c(77)*p7+c(87)*p8+c(97)*p9+c(107)*p10+c(117)*p11+c(127)*p12+c(137)*p13+c(147)*p14+c(157)*p15+c(167)*p16)
-( c(18)*p1+c(28)*p2+c(38)*p3+c(48)*p4+c(58)*p5+c(68)*p6+c(78)*p7+c(88)*p8+c(98)*p9+c(108)*p10+c(118)*p11+c(128)*p12+c(138)*p13+c(148)*p14+c(158)*p15+c(168)*p16)
-( c(19)*p1+c(29)*p2+c(39)*p3+c(49)*p4+c(59)*p5+c(69)*p6+c(79)*p7+c(89)*p8+c(99)*p9+c(109)*p10+c(119)*p11+c(129)*p12+c(139)*p13+c(149)*p14+c(159)*p15+c(169)*p16)
-( c(110)*p1+c(210)*p2+c(310)*p3+c(410)*p4+c(510)*p5+c(610)*p6+c(710)*p7+c(810)*p8+c(910)*p9+c(1010)*p10+c(1110)*p11+c(1210)*p12+c(1310)*p13+c(1410)*p14+c(1510)*p15+c(1610)*p16)
-( c(1711)*p17+c(1811)*p18+c(1911)*p19+c(2011)*p20+c(2111)*p21+c(2211)*p22+c(2311)*p23+c(2411)*p24+c(2511)*p25+c(2611)*p26+c(2711)*p27+c(2811)*p28+c(2911)*p29+c(3011)*p30+c(3111)*p31+c(3211)*p32)
-( c(1712)*p17+c(1812)*p18+c(1912)*p19+c(2012)*p20+c(2112)*p21+c(2212)*p22+c(2312)*p23+c(2412)*p24+c(2512)*p25+c(2612)*p26+c(2712)*p27+c(2812)*p28+c(2912)*p29+c(3012)*p30+c(3112)*p31+c(3212)*p32)
-( c(1713)*p17+c(1813)*p18+c(1913)*p19+c(2013)*p20+c(2113)*p21+c(2213)*p22+c(2313)*p23+c(2413)*p24+c(2513)*p25+c(2613)*p26+c(2713)*p27+c(2813)*p28+c(2913)*p29+c(3013)*p30+c(3113)*p31+c(3213)*p32)
-( c(1714)*p17+c(1814)*p18+c(1914)*p19+c(2014)*p20+c(2114)*p21+c(2214)*p22+c(2314)*p23+c(2414)*p24+c(2514)*p25+c(2614)*p26+c(2714)*p27+c(2814)*p28+c(2914)*p29+c(3014)*p30+c(3114)*p31+c(3214)*p32)
-( c(1715)*p17+c(1815)*p18+c(1915)*p19+c(2015)*p20+c(2115)*p21+c(2215)*p22+c(2315)*p23+c(2415)*p24+c(2515)*p25+c(2615)*p26+c(2715)*p27+c(2815)*p28+c(2915)*p29+c(3015)*p30+c(3115)*p31+c(3215)*p32)
-( c(1716)*p17+c(1816)*p18+c(1916)*p19+c(2016)*p20+c(2116)*p21+c(2216)*p22+c(2316)*p23+c(2416)*p24+c(2516)*p25+c(2616)*p26+c(2716)*p27+c(2816)*p28+c(2916)*p29+c(3016)*p30+c(3116)*p31+c(3216)*p32)
-( c(1717)*p17+c(1817)*p18+c(1917)*p19+c(2017)*p20+c(2117)*p21+c(2217)*p22+c(2317)*p23+c(2417)*p24+c(2517)*p25+c(2617)*p26+c(2717)*p27+c(2817)*p28+c(2917)*p29+c(3017)*p30+c(3117)*p31+c(3217)*p32)
-( c(1718)*p17+c(1818)*p18+c(1918)*p19+c(2018)*p20+c(2118)*p21+c(2218)*p22+c(2318)*p23+c(2418)*p24+c(2518)*p25+c(2618)*p26+c(2718)*p27+c(2818)*p28+c(2918)*p29+c(3018)*p30+c(3118)*p31+c(3218)*p32)
-( c(1719)*p17+c(1819)*p18+c(1919)*p19+c(2019)*p20+c(2119)*p21+c(2219)*p22+c(2319)*p23+c(2419)*p24+c(2519)*p25+c(2619)*p26+c(2719)*p27+c(2819)*p28+c(2919)*p29+c(3019)*p30+c(3119)*p31+c(3219)*p32)
-( c(1720)*p17+c(1820)*p18+c(1920)*p19+c(2020)*p20+c(2120)*p21+c(2220)*p22+c(2320)*p23+c(2420)*p24+c(2520)*p25+c(2620)*p26+c(2720)*p27+c(2820)*p28+c(2920)*p29+c(3020)*p30+c(3120)*p31+c(3220)*p32))


Thanks
Reza


Return to “Estimation”

Who is online

Users browsing this forum: No registered users and 2 guests