Well, this isn¡¯t very elegant, but how about this? Using the std ucinet dataset ¡°zackar¡± as an example, type these commands into the CLI:
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unpack zackar ???//this just creates a valued dataset called zachc
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d0 = dichot(zachc gt 0)
d1 = dichot(zachc gt 1)
d2 = dichot(zachc gt 2)
d3 = dichot(zachc gt 3)
d4 = dichot(zachc gt 4)
d5 = dichot(zachc gt 5)
d6 = dichot(zachc gt 6)
d7 = dichot(zachc gt 7)
d = joinmat(d0 d1 d2 d3 d4 d5 d6 d7)
deg = degree(d)
iso = dichot(deg eq 0)
dsp iso
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the result will be:
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????????? 1 2 3 4 5 6 7 8
??????????D D D D D D D D
??????????0 1 2 3 4 5 6 7
??????????- - - - - - - -
????????1 0 0 0 0 0 1 1 1
????????2 0 0 0 0 0 0 1 1
????????3 0 0 0 0 0 0 1 1
????????4 0 0 0 1 1 1 1 1
????????5 0 0 0 1 1 1 1 1
????????6 0 0 0 0 0 1 1 1
????????7 0 0 0 0 0 1 1 1
????????8 0 0 0 0 1 1 1 1
????????9 0 0 0 0 0 1 1 1
???????10 0 0 1 1 1 1 1 1
???????11 0 0 0 1 1 1 1 1
???????12 0 0 0 1 1 1 1 1
???????13 0 0 0 1 1 1 1 1
???????14 0 0 0 0 0 1 1 1
???????15 0 0 0 1 1 1 1 1
???????16 0 0 0 0 1 1 1 1
???????17 0 0 0 1 1 1 1 1
???????18 0 0 1 1 1 1 1 1
???????19 0 0 1 1 1 1 1 1
???????20 0 0 1 1 1 1 1 1
???????21 0 0 0 1 1 1 1 1
???????22 0 0 1 1 1 1 1 1
???????23 0 0 0 1 1 1 1 1
???????24 0 0 0 0 0 1 1 1
???????25 0 0 0 1 1 1 1 1
???????26 0 0 0 0 0 0 0 1
???????27 0 0 0 0 1 1 1 1
???????28 0 0 0 0 1 1 1 1
???????29 0 0 1 1 1 1 1 1
???????30 0 0 0 0 1 1 1 1
???????31 0 0 0 1 1 1 1 1
???????32 0 0 0 0 0 0 0 1
???????33 0 0 0 0 0 1 1 1
???????34 0 0 0 0 0 1 1 1
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The ¡®1¡¯ in row 1 col 6 indicates that person 1 became an isolate when we dichotomized at tie strength > 5
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steve
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Stephen P. Borgatti
Gatton Endowed Chair of Management
Gatton College of Business and Economics
University of Kentucky
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