  # Numpy recarray.flatten () function | python

Arrays | NumPy | Python Methods and Functions

`numpy.recarray.flatten()` returns arrays of records in one dimension.

Syntax: `numpy.recarray.flatten(order=`C`)`

Parameters:

order: [[& # 39; C & # 39 ;, & # 39; F & # 39 ;, & # 39; A & # 39;, & # 39; K & # 39;], optional]
"C" stands for major alignment (C style).
"F" stands for major alignment (Fortran style).
"A" means alignment in a major column if a is contiguous in Fortran memory, otherwise — in major order.
"K" means alignment in the order of the elements in memory. The default is "C".

Returns: a copy of the input array collapsed into one dimension.

Code # 1:

` `

` # Python program explaining # numpy.recarray.flatten () method   # import numy as a geek import numpy as geek   # create an input array with two different fields in_arr = geek.array ([[( 5.0 , 2 ), ( 3.0 , - 4 ), ( 6.0 , 9 )], [( 9.0 , 1 ), ( 5.0 , 4 ), ( - 12.0 , - 7 )]], dtype = [( `a` , float ), ( `b` , int )])    print ( " Input array : " , in_arr)    # convert it to an array of posts, # using arr.view (np.recarray) rec_arr = in_arr.view (geek.recarray) print ( "Record array of float:" , rec_arr.a) print ( " Record array of int: " , rec_arr.b)    # using recarray.flatten methods # expose post in Fortan order out_arr1 = rec_arr.a.flatten (order = `F` ) print ( "Output float flattened array in Fortan order:" , out_arr1)    # using recarray.flatten methods # place array of records in default order out_arr2 = rec_arr.a.flatten () print ( "Output float flattenedarray in default order:" , out_arr2)   # recarray methods .flatten # to write int in order & # 39; A & # 39; out_arr3 = rec_arr.b.flatten (order = `A` ) print ( "Output int flattened array in A order:" , out_arr3)    # using recarray.flatten methods # place an array of posts in the order & # 39; K & # 39; out_arr4 = rec_arr.b.flatten (order = `K` ) print ( " Output intt flattened array in K order: " , out_arr4)  `

` ` Output:

` Input array: [[(5., 2) (3 ., -4) (6., 9)] [(9., 1) (5., 4) (-12., -7)]] Record array of float: [[5. 3. 6.] [ 9. 5. -12.]] Record array of int: [[2 -4 9] [1 4 -7]] Output float flattened array in Fortan order: [5. 9. 3. 5. 6. -12. ] Output float flattenedarray in default order: [5. 3. 6. 9. 5. -12.] Output int flattened array in A order: [2 -4 9 1 4 -7] Output intt flattened array in K order: [ 2 -4 9 1 4 -7] `