Strand Assignment: Difference between revisions
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Sudleyplace (talk | contribs) (New page: <table border="1" cellpadding="5" cellspacing="0" rules="none" summary=""> <caption>'''Strand Assignment'''</caption> <tr> <td> <table border="0" cellpadding="5" cellspacing="0" summ...) |
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<table border="0" cellpadding="5" cellspacing="0" summary=""> | <table border="0" cellpadding="5" cellspacing="0" summary=""> | ||
<tr> | <tr> | ||
<td><apl size="large"> ( | <td><apl size="large"> (A<sub>1</sub> A<sub>2</sub> ... A<sub>n</sub>){is}R</apl></td> | ||
<td></td> | <td></td> | ||
<td></td> | <td></td> | ||
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</tr> | </tr> | ||
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<td><apl size="large"> | <td><apl size="large">A<sub>1</sub> A<sub>2</sub> ... A<sub>n</sub></apl> are assignable names, <apl size="large">R</apl> is a scalar or vector. | ||
</td> | </td> | ||
</tr> | </tr> | ||
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<td>If <apl size="large">R</apl> is a scalar or one element vector, its item is assigned to each name, as in <apl size="large"> | <td>If <apl size="large">R</apl> is a scalar or one element vector, its item is assigned to each name, as in <apl size="large">A<sub>i</sub>{is}{disclose}{zilde}{rho}R</apl>.</td> | ||
</tr> | </tr> | ||
<tr> | <tr> | ||
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<td>Otherwise, each successive item of <apl size="large">R</apl> is assigned to each successive name, as in <apl size="large"> | <td>Otherwise, each successive item of <apl size="large">R</apl> is assigned to each successive name, as in <apl size="large">A<sub>i</sub>{is}i{disclose}R</apl>.</td> | ||
</tr> | </tr> | ||
</table> | </table> | ||
Revision as of 08:42, 9 April 2008
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| A1 A2 ... An are assignable names, R is a scalar or vector. | ||||
| If 1<⍴⍴R, signal a RANK ERROR. | ||||
| If R is a scalar or one element vector, its item is assigned to each name, as in Ai←⊃⍬⍴R. | ||||
| Otherwise, assume there are n names in the list: | ||||
| If n≠⍴R, signal a LENGTH ERROR. | ||||
| Otherwise, each successive item of R is assigned to each successive name, as in Ai←i⊃R. |
For example, (A B C)←⊂⍳3 assigns ⍳3 to each of the names A, B, and C
Also, (A B C)←(1 2)'abc' 1.1 is the same as A←1 2 ⋄ B←'abc' ⋄ C←1.1
