adding files

Author: mikolalysenko

.gitignore

@@ -0,0 +1,16 @@
+lib-cov
+*.seed
+*.log
+*.csv
+*.dat
+*.out
+*.pid
+*.gz
+
+pids
+logs
+results
+
+npm-debug.log
+node_modules/*
+*.DS_Store

.npmignore

@@ -0,0 +1,17 @@
+lib-cov
+*.seed
+*.log
+*.csv
+*.dat
+*.out
+*.pid
+*.gz
+
+pids
+logs
+results
+
+npm-debug.log
+node_modules/*
+*.DS_Store
+test/*

LICENSE

@@ -0,0 +1,22 @@
+
+The MIT License (MIT)
+
+Copyright (c) 2013 Mikola Lysenko
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

@@ -0,0 +1,28 @@
+ndarray-unpack
+==============
+Converts an [ndarray](https://github.com/mikolalysenko/ndarray) into an array-of-native-arrays.  (Same format used by [numeric.js](http://www.numericjs.com/)).  Like all ndarray modules this works both in node.js and in the browser.
+
+## Example
+
+```javascript
+//Create an ndarray and set a value
+var x = require("zeros")([5,5])
+x.set(2,2,1)
+
+//Convert ndarray into array-of-arrays
+console.log(require("unpack")(x))
+```
+
+## Install
+
+    npm install ndarray-unpack
+    
+### `require("ndarray-unpack")(array)`
+Converts `array` into an array-of-arrays style array.
+
+* `array` is an ndarray
+
+**Returns** An array-of-arrays having the same contents as `array`
+
+## Credits
+(c) 2013 Mikola Lysenko. MIT License

test/test.js

@@ -0,0 +1,16 @@
+var zeros = require("zeros")
+var unpack = require("../unpack.js")
+
+require("tape")("ndarray-unpack", function(t) {
+
+  var x = zeros([5,5])
+  x.set(2,3,1)
+
+  t.same(unpack(x), [[0, 0, 0, 0, 0],
+                    [0, 0, 0, 0, 0],
+                    [0, 0, 0, 1, 0],
+                    [0, 0, 0, 0, 0],
+                    [0, 0, 0, 0, 0]])
+  
+  t.end()
+})

unpack.js

@@ -0,0 +1,21 @@
+"use strict"
+
+var dup = require("dup")
+var cwise = require("cwise")
+
+var do_unpack = cwise({
+  args: ["array", "scalar", "index"],
+  body: function unpack(arr, a, idx) {
+    var v = a
+    for(var i=0; i<idx.length-1; ++i) {
+      v = v[idx[i]]
+    }
+    v[idx[idx.length-1]] = arr
+  }
+})
+
+module.exports = function unpack(arr) {
+  var result = dup(arr.shape)
+  do_unpack(arr, result)
+  return result
+}