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| <h3 class="section">8.231 <code>SPREAD</code> — Add a dimension to an array</h3> |
| |
| <p><a name="index-SPREAD-1058"></a><a name="index-array_002c-increase-dimension-1059"></a><a name="index-array_002c-duplicate-elements-1060"></a><a name="index-array_002c-duplicate-dimensions-1061"></a> |
| <dl> |
| <dt><em>Description</em>:<dd>Replicates a <var>SOURCE</var> array <var>NCOPIES</var> times along a specified |
| dimension <var>DIM</var>. |
| |
| <br><dt><em>Standard</em>:<dd>Fortran 95 and later |
| |
| <br><dt><em>Class</em>:<dd>Transformational function |
| |
| <br><dt><em>Syntax</em>:<dd><code>RESULT = SPREAD(SOURCE, DIM, NCOPIES)</code> |
| |
| <br><dt><em>Arguments</em>:<dd> |
| <p><table summary=""><tr align="left"><td valign="top" width="15%"><var>SOURCE</var> </td><td valign="top" width="70%">Shall be a scalar or an array of any type and |
| a rank less than seven. |
| <br></td></tr><tr align="left"><td valign="top" width="15%"><var>DIM</var> </td><td valign="top" width="70%">Shall be a scalar of type <code>INTEGER</code> with a |
| value in the range from 1 to n+1, where n equals the rank of <var>SOURCE</var>. |
| <br></td></tr><tr align="left"><td valign="top" width="15%"><var>NCOPIES</var> </td><td valign="top" width="70%">Shall be a scalar of type <code>INTEGER</code>. |
| <br></td></tr></table> |
| |
| <br><dt><em>Return value</em>:<dd>The result is an array of the same type as <var>SOURCE</var> and has rank n+1 |
| where n equals the rank of <var>SOURCE</var>. |
| |
| <br><dt><em>Example</em>:<dd> |
| <pre class="smallexample"> PROGRAM test_spread |
| INTEGER :: a = 1, b(2) = (/ 1, 2 /) |
| WRITE(*,*) SPREAD(A, 1, 2) ! "1 1" |
| WRITE(*,*) SPREAD(B, 1, 2) ! "1 1 2 2" |
| END PROGRAM |
| </pre> |
| <br><dt><em>See also</em>:<dd><a href="UNPACK.html#UNPACK">UNPACK</a> |
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