PREFSCAL

PREFSCAL 在 取樣及檢定中可用。

PREFSCAL 會執行相似性資料的多維度展開，以尋找低維度空間中列和欄物件的最小平方表示法。

PREFSCAL VARIABLES = varlist

   [/INPUT = [ROWS({n    })]
                   {rowid}
             [SOURCES({1**     })]]
                      {n       }
                      {sourceid}

   [/PROXIMITIES = {DISSIMILARITIES**}]
                   {SIMILARITIES     }

   [/WEIGHTS = varlist]

   [/INITIAL = {CLASSICAL[({TRIANGLE**})]}]
                           {SPEARMAN  }
               {CORRESPONDENCE           }
               {ROSSCLIFF                }
               {CENTROIDS[({1})]         }
                           {n}
               {RANDOM[({1})]            }
                        {n} 
               {(filespec) [varlist]     }

   [/CONDITION = {ROW** }]
                 {MATRIX}
                 {UNCONDITIONAL    }

   [/TRANSFORMATION = {NONE[(INTERCEPT)]                              }]
                      {LINEAR[(INTERCEPT)]                            }
                      {ORDINAL[({UNTIE   })]                          }
                                {KEEPTIES}**
                      {SMOOTH[({UNTIE   })]                           }
                               {KEEPTIES}
                      {SPLINE[([INTERCEPT] [ORDER={2}] [INKNOT={1}])]}
                                                  {n}          {n}

   [/MODEL = {IDENTITY** }]
             {WEIGHTED   }
             {GENERALIZED}

   [/RESTRICTIONS = {ROW   ({NONE**     } (filespec) [varlist])}]
                            {COORDINATES}
                    {COLUMN({NONE**     } (filespec) [varlist])}
                            {COORDINATES}

   [/PENALTY = [LAMBDA({0.5**})]
                       {value}
               [OMEGA({1.0**})]
                      {value}

   [/CRITERIA = [DIMENSIONS({2**      })]
                            {min[,max]}
                [MAXITER({5000**})]
                         {value }
                [DIFFSTRESS({0.000001**})]
                            {value    }
                [MINSTRESS({0.0001**})]]
                           {value   }

   [/PRINT = [NONE]  [INPUT]  [MULTIPLE]  [INITIAL]
             [HISTORY]  [MEASURES**]  [DECOMPOSITION]
             [COMMON**]  [DISTANCES]  [WEIGHTS**]
             [INDIVIDUAL]  [TRANSFORMATION]]

   [/PLOT = [NONE]  [MULTIPLE]  [INITIAL]  [STRESS]
            [COMMON**]  [WEIGHTS**]
            [INDIVIDUAL[(valuelist) [...]]]
            [TRANSFORMATIONS[(valuelist) [...]]]
            [SHEPARD[(valuelist) [...]]]
            [FIT[(valuelist) [...]]]
            [RESIDUALS[(valuelist) [...]]]]

   [/OPTIONS = [MARKERS(rowid)]
               [COLORS(rowid)]]

   [/OUTFILE = [COMMON('savfile'|'dataset')]
               [WEIGHTS('savfile'|'dataset')]
               [DISTANCES('savfile'|'dataset')]
               [TRANSFORMATIONS('savfile'|'dataset')]]

* Default if the keyword is ommitted.

**如果省略了次指令或關鍵字，則為預設值。

此指令會讀取作用中資料集，並導致執行任何擱置指令。 如需相關資訊，請參閱主題 指令順序 。

PREFSCAL 指令的語法可以從 多維展開 (PREFSCAL) 對話框產生。

發行歷程

版本 14.0

• 已建立指令。

範例

PREFSCAL var01 TO var02.