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Talk:Block design

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I have hidden, but not removed, a recently added example of a BIBD. My concerns are that the table introduced statistical terminology without any explanation and it wasn't clear what the example was. A small example is a fine addition to the article, but this one needs more work before it is
293:, properly speaking, is a number.) The conventions of the field make the term "block design" the best one for an article (unless you prefer the long name, which is not as much used nowadays). I am open to being shown wrong on this, but my experience indicates that's what experts would say. 284:
I plan to move "T-design" back to "Block design". Please do not move it back to "T-design" (or "t-design"). The general term is "block design" or in full "balanced incomplete block design". A particular kind of block design is called a
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being predictable from the rest, but important to know. The reason they're important is that they have to do with the size of the design, which matters when you have to pay for it. (This notation suggests why one says "2-design" or
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My syllabus apparently backs me up on this formula. My question, why should this be included in the definition when it is abundant as it (apparently) can be calculated immediately from the rest
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presentable. Since this was computer generated, perhaps a subsection of applications could be added to talk about such generation and the fields in which it is useful. --
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As usual with stuff concerning graph theory/combinatorics, conventions differ. in my syllabus it saids every 2-design is a block and vice versa
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is in the notation (not definition, though it could also be in the definition) is that it's important to know. Another notation is "
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Moved. Again, I ask people not to move this back to "T-design" without deep thought. If you object, let's discuss it and decide.
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Currently, the article is "purely" Design-theoretic and is lacking a Coding Theory perspective. A case, for example, is an
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My apologies if I am wrong, I am just a student and most of maths is still new to me, but I am very busy with it all.
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now the r defined here , is the number of blocks through one point x now some basic counting teaches me immediately :
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I'd be grateful if anyone could explain why 'partial incomplete block design' is the terminology could add that.
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on Knowledge. If you would like to participate, please visit the project page, where you can join
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on Knowledge. If you would like to participate, please visit the project page, where you can join
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In full, "balanced incomplete block design". "Incomplete" because you don't use all
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through every subset of the point set with t elements there are \lambda blocks
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The reason 8: 152: 47: 470: 441: 439: 423: 394: 392: 390: 332: 326: 588:http://batman.cs.dal.ca/~peter/designdb/ 535:was an afterthought, originally, since 154: 49: 19: 564:Balanced incomplete block design code 550:Coding-theoretic applications missing 7: 184:This article is within the scope of 95:This article is within the scope of 558:whose codewords are the lines of a 376:the number of points on a line is k 362:{\displaystyle S_{\lambda }(t,k,v)} 38:It is of interest to the following 672:Mid-importance Statistics articles 539:= 2 was the main topic at first.) 446: 399: 14: 662:Mid-priority mathematics articles 321:But more importantly , it says : 115:Knowledge:WikiProject Mathematics 204:Knowledge:WikiProject Statistics 177: 156: 118:Template:WikiProject Mathematics 82: 72: 51: 20: 677:WikiProject Statistics articles 224:This article has been rated as 207:Template:WikiProject Statistics 135:This article has been rated as 356: 338: 1: 577:14:24, 26 November 2008 (UTC) 544:10:58, 26 February 2007 (UTC) 501:16:58, 15 February 2006 (UTC) 308:11:57, 26 February 2007 (UTC) 298:10:52, 26 February 2007 (UTC) 274:11:54, 26 February 2007 (UTC) 198:and see a list of open tasks. 109:and see a list of open tasks. 657:B-Class mathematics articles 643:19:40, 1 February 2017 (UTC) 667:B-Class Statistics articles 693: 622:02:41, 22 March 2013 (UTC) 606:12:30, 21 March 2013 (UTC) 373:the number of points is v 257:19:48, 19 Nov 2004 (UTC) 223: 172: 134: 67: 46: 141:project's priority scale 369:is a t-design , when : 98:WikiProject Mathematics 481: 363: 187:WikiProject Statistics 28:This article is rated 556:error-correcting code 482: 364: 389: 325: 121:mathematics articles 210:Statistics articles 477: 359: 269:number of blocks. 90:Mathematics portal 34:content assessment 596:comment added by 518:,λ) design", the 469: 422: 244: 243: 240: 239: 236: 235: 151: 150: 147: 146: 684: 635:Bill Cherowitzo 614:Bill Cherowitzo 608: 486: 484: 483: 478: 476: 475: 474: 468: 457: 445: 429: 428: 427: 421: 410: 398: 368: 366: 365: 360: 337: 336: 255:Charles Matthews 230:importance scale 212: 211: 208: 205: 202: 181: 174: 173: 168: 160: 153: 123: 122: 119: 116: 113: 92: 87: 86: 76: 69: 68: 63: 55: 48: 31: 25: 24: 16: 692: 691: 687: 686: 685: 683: 682: 681: 647: 646: 630: 598:193.144.198.250 591: 584: 552: 458: 447: 440: 411: 400: 393: 387: 386: 328: 323: 322: 316: 289:-design. (The 282: 249: 209: 206: 203: 200: 199: 166: 120: 117: 114: 111: 110: 88: 81: 61: 32:on Knowledge's 29: 12: 11: 5: 690: 688: 680: 679: 674: 669: 664: 659: 649: 648: 629: 626: 625: 624: 583: 580: 567: 551: 548: 547: 546: 531:-design"; the 496:Kind regards, 489: 473: 467: 464: 461: 456: 453: 450: 444: 438: 435: 432: 426: 420: 417: 414: 409: 406: 403: 397: 381: 380: 377: 374: 358: 355: 352: 349: 346: 343: 340: 335: 331: 315: 312: 311: 310: 281: 278: 277: 276: 248: 245: 242: 241: 238: 237: 234: 233: 226:Mid-importance 222: 216: 215: 213: 196:the discussion 182: 170: 169: 167:Mid‑importance 161: 149: 148: 145: 144: 133: 127: 126: 124: 107:the discussion 94: 93: 77: 65: 64: 56: 44: 43: 37: 26: 13: 10: 9: 6: 4: 3: 2: 689: 678: 675: 673: 670: 668: 665: 663: 660: 658: 655: 654: 652: 645: 644: 640: 636: 627: 623: 619: 615: 611: 610: 609: 607: 603: 599: 595: 589: 582:Database link 581: 579: 578: 574: 570: 565: 561: 557: 549: 545: 542: 538: 534: 530: 525: 521: 517: 513: 509: 505: 504: 503: 502: 499: 494: 491: 487: 465: 462: 459: 454: 451: 448: 436: 433: 430: 418: 415: 412: 407: 404: 401: 384: 378: 375: 372: 371: 370: 353: 350: 347: 344: 341: 333: 329: 319: 313: 309: 306: 302: 301: 300: 299: 296: 292: 288: 279: 275: 272: 268: 264: 260: 259: 258: 256: 252: 246: 231: 227: 221: 218: 217: 214: 197: 193: 189: 188: 183: 180: 176: 175: 171: 165: 162: 159: 155: 142: 138: 132: 129: 128: 125: 108: 104: 100: 99: 91: 85: 80: 78: 75: 71: 70: 66: 60: 57: 54: 50: 45: 41: 35: 27: 23: 18: 17: 631: 592:— Preceding 585: 553: 536: 532: 528: 523: 519: 515: 511: 507: 495: 492: 488: 385: 382: 320: 317: 290: 286: 283: 266: 262: 253: 250: 225: 185: 137:Mid-priority 136: 96: 62:Mid‑priority 40:WikiProjects 112:Mathematics 103:mathematics 59:Mathematics 651:Categories 569:Omnipedian 201:Statistics 192:statistics 164:Statistics 586:The link 560:symmetric 314:confusion 594:unsigned 628:Example 516:b,v,r,k 228:on the 139:on the 30:B-class 612:Done. 541:Zaslav 498:Evilbu 305:Zaslav 295:Zaslav 271:Zaslav 36:scale. 639:talk 618:talk 602:talk 573:talk 522:and 267:same 220:Mid 131:Mid 653:: 641:) 620:) 604:) 575:) 566:. 514:-( 463:− 452:− 431:λ 416:− 405:− 334:λ 637:( 616:( 600:( 571:( 537:t 533:t 529:t 527:" 524:r 520:b 512:t 508:r 472:) 466:1 460:t 455:1 449:k 443:( 437:r 434:= 425:) 419:1 413:t 408:1 402:v 396:( 357:) 354:v 351:, 348:k 345:, 342:t 339:( 330:S 291:t 287:t 280:2 263:k 247:1 232:. 143:. 42::

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Charles Matthews
Zaslav
11:54, 26 February 2007 (UTC)
Zaslav
10:52, 26 February 2007 (UTC)
Zaslav
11:57, 26 February 2007 (UTC)
Evilbu
16:58, 15 February 2006 (UTC)

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