标题: 关于一个定义的解释，请求帮忙！ [打印本页] 作者: skysophie 时间: 2010-9-18 15:05 标题: 关于一个定义的解释，请求帮忙！ Definitions.-An arrangement of v objects (called treatments) in b sets( P( [! Y+ M0 x8 S& }
(called blocks) will be called a pairwise balanced design of index unity and type 1 e# G+ g3 x1 _6 r8 W3 N. y(v; ki, k2, .. ., ki) if each block contains either k1, k2, .. ., or km treatments which1 S+ A* ]* S' k" H8 r/ K9 O
are all distinct (k, < v, k, $ kj), and every pair of distinct treatments occurs exactly2 c2 n$ U) K) W3 u
in one block of the design. If the number of blocks containing k, treatments is - j" B, G7 _4 ]4 e- Zb,, then clearly b = A bi, v(v-1) = i biki(k -1)。。。3 C% U Z0 }: {8 r0 R( _. J2 I8 ~
* V* l3 `! s2 I }( f0 D& y( M谁能帮我解释一下，可以举个简单的例子。。谢谢！~ ! r5 {7 m, ~1 E. Q: ?4 E作者: 角凳 时间: 2010-10-12 23:26
是告诉我们这是哪个领域的么？？
