data examples6 a4 \( j& G6 F
input wft dft y;0 V' i+ h8 R9 V+ A6 g
datalines; 7 l* Q- R) e: a/ o% _* P0 i$ z( D
610 550 33.65 w7 z# i$ d1 f: a+ f
450 500 22.3 4 [; j3 @1 U, a/ \# m450 520 22$ _( N7 [ ~, k5 \2 B
430 740 18.7) S- T$ b7 D: a! l% ]; C" b
410 800 20.2$ P- q4 @: {0 V# T# e
500 230 31 & m: q" I& S! b# ]+ `# E500 235 30/ u; h$ r6 R6 B3 p( m' V+ ]; E
500 240 327 Y0 b" g4 r( B' E S
450 600 26.6 ! D! }' a# B6 O7 {( b3 O- G5 [450 600 26.6 , F: q' H# B' g8 r480 230 30' g9 ? x5 \( F) g
475 1400 13.5 1 b k8 C z" g, z485 615 26.8+ G: P7 d. E) g! l+ _
474 515 25 ( e& r3 U; v2 B8 v) h485 700 20.4 $ [7 C( C' U+ w* z& E L- l4 `600 750 15$ s5 k1 l& Z$ U. x1 j8 E5 K# M
;$ u" G4 y& n+ c' T
run;9 c1 a; ?: w; ]. x& ~) _3 |
proc nlin data=examples; , X: r/ V2 }* P2 B0 o3 pparameters alpha=35 beta=1.0; ' Y3 d; B/ L2 z2 Z+ C$ ~model y=alpha*(1-exp(-beta*(wft/dft))); 1 N. D2 f+ M; O7 ~run;6 [- D) `" ?# w! o& w- n! c
2 |5 I, s r0 U# O--------------------------------------------------- , C% S# Y2 t4 t% W- m' {我写的一个SAS的非线性回归,但是总是提示错误,NOTE: DER.alpha not initialized or missing. It will be computed automatically.& T( V9 F/ H0 {" I8 v
NOTE: DER.beta not initialized or missing. It will be computed automatically. . y4 ~9 |/ F! y5 l3 U1 {ERROR: dependent variable not on dataset. % j4 D1 I. M6 c) |8 G/ B+ Q6 P 7 {* h$ {/ P2 `* x# r3 a2 s( A新手请大家帮助了~谢谢各位 * J0 }) R) A0 O E