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One of the types of objects in Praat.
It represents a one-way table with dissimilarities between "objects".
Suppose you have three objects A, B and C. In one way or another, you have acquired the following (symmetric) dissimilarities: δAB = 2 (= δBA) , δAC = 1 (= δCA), and δBC = 1.4 (= δCB), where δAB represents the dissimilarity between object A and object B.
You can create a simple text file like the following:
   "ooTextFile"  ! The line by which Praat can recognize your file
   "Dissimilarity" ! The line that tells Praat about the contents
   3     "A"  "B"  "C"   ! Number of columns, and column labels
   3                     ! Number of rows
   "A"    0    2    1    ! Row label (A), A-B value, A-C value
   "B"    2    0  1.4    ! Row label (B), B-A value, B-C value
   "C"    1    1.4  0    ! Row label (C), C-A value, C-B value
Notice that:
This text file can be read with the Read from file... command. Since a Dissimilarity object has the data structure of a square symmetrical TableOfReal, you could also start from an appropriate TableOfReal object and cast it to a Dissimilarity object.
Creation
Drawing
Query
Modification
Multidimensional scaling analysis
© djmw 20010327