Array manipulation routines
Changing array shape
| reshape | Gives a new shape to an array without changing its data. |
| ravel | Return a flattened array. |
| ndarray.flat | A 1-D flat iterator over the array. |
| ndarray.flatten | Return a copy of the array collapsed into one dimension. |
Transpose-like operations
| rollaxis | Roll the specified axis backwards, until it lies in a given position. |
| swapaxes | Interchange two axes of an array. |
| ndarray.T | Same as self.transpose() except self is returned for self.ndim < 2. |
| transpose | Permute the dimensions of an array. |
Changing number of dimensions
| atleast_1d | Convert inputs to arrays with at least one dimension. |
| atleast_2d | View inputs as arrays with at least two dimensions. |
| atleast_3d | View inputs as arrays with at least three dimensions. |
| broadcast | Produce an object that mimics broadcasting. |
| broadcast_arrays | Broadcast any number of arrays against each other. |
| expand_dims | Expand the shape of an array. |
| squeeze | Remove single-dimensional entries from the shape of an array. |
Changing kind of array
| asarray | Convert the input to an array. |
| asanyarray | Convert the input to a ndarray, but pass ndarray subclasses through. |
| asmatrix | Interpret the input as a matrix. |
| asfarray | Return an array converted to a float type. |
| asfortranarray | Return an array laid out in Fortran order in memory. |
| asscalar | Convert an array of size 1 to its scalar equivalent. |
| require | Return an ndarray of the provided type that satisfies requirements. |
Joining arrays
| column_stack | Stack 1-D arrays as columns into a 2-D array. |
| concatenate | Join a sequence of arrays together. |
| dstack | Stack arrays in sequence depth wise (along third axis). |
| hstack | Stack arrays in sequence horizontally (column wise). |
| vstack | Stack arrays in sequence vertically (row wise). |
Splitting arrays
| array_split | Split an array into multiple sub-arrays of equal or near-equal size. |
| dsplit | Split array into multiple sub-arrays along the 3rd axis (depth). |
| hsplit | Split an array into multiple sub-arrays horizontally (column-wise). |
| split | Split an array into multiple sub-arrays of equal size. |
| vsplit | Split an array into multiple sub-arrays vertically (row-wise). |
Tiling arrays
| tile | Construct an array by repeating A the number of times given by reps. |
| repeat | Repeat elements of an array. |
Adding and removing elements
| delete | Return a new array with sub-arrays along an axis deleted. |
| insert | Insert values along the given axis before the given indices. |
| append | Append values to the end of an array. |
| resize | Return a new array with the specified shape. |
| trim_zeros | Trim the leading and/or trailing zeros from a 1-D array or sequence. |
| unique | Return the sorted, unique elements of an array or sequence. |
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