Last change
on this file since 231 was
231,
checked in by pinsard, 17 years ago
|
improvements/corrections of some *.pro headers
|
-
Property svn:keywords set to
Id
|
File size:
845 bytes
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Rev | Line | |
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[133] | 1 | ;+ |
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| 2 | ; @file_comments |
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[163] | 3 | ; Send back a vector or a matrix constituted of 0 and 1 in alternation |
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[133] | 4 | ; |
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[157] | 5 | ; @categories |
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| 6 | ; Function, Matrix |
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[133] | 7 | ; |
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| 8 | ; @param n1 {in}{required} number of elements in the first dimension |
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[163] | 9 | ; @param n2 {in}{required} number of elements in the second dimension |
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[133] | 10 | ; |
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[163] | 11 | ; @returns result |
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[133] | 12 | ; |
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[157] | 13 | ; @history Sebastien Masson (smasson\@lodyc.jussieu.fr) |
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[133] | 14 | ; 1/12/98 |
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| 15 | ; |
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| 16 | ; @version $Id$ |
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| 17 | ; |
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| 18 | ;- |
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[231] | 19 | ; |
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[133] | 20 | function zero_one, n1,n2 |
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| 21 | ; |
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| 22 | compile_opt idl2, strictarrsubs |
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| 23 | ; |
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| 24 | CASE N_PARAMS() OF |
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| 25 | 1:return, findgen(n1) mod 2 |
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| 26 | 2:BEGIN |
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| 27 | if fix(n1/2) EQ n1/2. then BEGIN ;even number of columns |
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| 28 | res = findgen(n1+1,n2) mod 2 |
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| 29 | return, res[0:n1-1, *] |
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| 30 | ENDIF ELSE return, findgen(n1,n2) mod 2 ;odd number of columns |
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| 31 | END |
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| 32 | else: return, report('bad number of arguments') |
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| 33 | endcase |
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| 34 | end |
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