NAME

    AI::MXNet::Base - Helper functions

DEFINITION

    Helper functions

zip

    Perl version of for x,y,z in zip (arr_x, arr_y, arr_z)

    Parameters
    ----------
    $sub_ref, called with @_ filled with $arr_x->[$i], $arr_y->[$i], $arr_z->[$i]
    for each loop iteration.

    @array_refs

enumerate

    Same as zip, but the argument list in the anonymous sub is prepended
    by the iteration count.

product

    Calculates the product of the input agruments.

bisect_left

    https://hg.python.org/cpython/file/2.7/Lib/bisect.py

pdl_shuffle

    Shuffle the pdl by the last dimension

    Parameters
    -----------
    PDL $pdl
    $preshuffle Maybe[ArrayRef[Index]], if defined the array elements are used
    as shuffled last dimension's indexes

assert

    Parameters
    -----------
    Bool $input
    Str  $error_str
    Calls Carp::confess with $error_str//"AssertionError" if the $input is false

check_call

    Checks the return value of C API call

    This function will raise an exception when error occurs.
    Every API call is wrapped with this function.

    Returns the C API call return values stripped of first return value,
    checks for return context and returns first element in
    the values list when called in scalar context.

build_param_doc

    Builds argument docs in python style.

    arg_names : array ref of str
        Argument names.

    arg_types : array ref of str
        Argument type information.

    arg_descs : array ref of str
        Argument description information.

    remove_dup : boolean, optional
        Whether to remove duplication or not.

    Returns
    -------
    docstr : str
        Python docstring of parameter sections.

_notify_shutdown

    Notify MXNet about shutdown.