chris-b1

ffill(a::AbstractArray) = copy(a)
function ffill(a::AbstractArray{Union{Missing, T}}) where {T}
    res = similar(a, T)
    if ismissing(first(a))
        error("first value in array is missing")
    else
        fillval::T = first(a)
    end

    for i in eachindex(a)

chris-b1

%%cython

cimport numpy as cnp
import numpy as np
cimport cython

cdef extern from "numpy/npy_math.h":
    bint npy_isnan(double x) nogil

cdef inline bint isnan(double x) nogil:

chris-b1

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

struct Array {
	int len;
	double* values;
};

static inline void add_var(double val, double *nobs, double *mean_x, double *ssqdm_x) {

chris-b1

; msvc 2015 - works!
  000000018005E4D7: E8 84 2B FA FF     call        printf
  000000018005E4DC: 48 8B 85 18 01 00  mov         rax,qword ptr [rbp+118h]
                    00
  000000018005E4E3: F2 0F 10 04 03     movsd       xmm0,mmword ptr [rbx+rax]
  000000018005E4E8: 66 0F 2E C0        ucomisd     xmm0,xmm0
  000000018005E4EC: 7A 34              jp          000000018005E522
  000000018005E4EE: 75 32              jne         000000018005E522
  000000018005E4F0: F2 0F 5C C7        subsd       xmm0,xmm7
  000000018005E4F4: F2 41 0F 58 F2     addsd       xmm6,xmm10

chris-b1

; MSVC 2017
  000000018005C898: E8 C3 47 FA FF     call        printf
  000000018005C89D: 48 8B 85 18 01 00  mov         rax,qword ptr [rbp+118h]
                    00
  000000018005C8A4: 4C 8D 4C 24 78     lea         r9,[rsp+78h]
  000000018005C8A9: 4C 8D 45 98        lea         r8,[rbp-68h]
  000000018005C8AD: 48 8D 54 24 70     lea         rdx,[rsp+70h]
  000000018005C8B2: F2 0F 10 04 07     movsd       xmm0,mmword ptr [rdi+rax]
  000000018005C8B7: E8 34 0A 00 00     call        000000018005D2F0
  000000018005C8BC: 48 8D 0D 6D 1F 01  lea         rcx,[18006E830h]

chris-b1

  /* Generated by Cython 0.28.3 */

#define PY_SSIZE_T_CLEAN
#include "Python.h"
#ifndef Py_PYTHON_H
    #error Python headers needed to compile C extensions, please install development version of Python.
#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
    #error Cython requires Python 2.6+ or Python 3.3+.
#else
#define CYTHON_ABI "0_28_3"

chris-b1

#include <iostream>
#include <string>
#include <vector>
#include <chrono>

#include "xlnt/xlnt.hpp"
#include "xlnt/workbook/streaming_workbook_reader.hpp"

int main()
{

chris-b1

import pandas as pd
import numpy as np
from pyarrow.parquet import read_pandas, write_table
from pyarrow import Table
import timeit

N = 25000

s = np.array(['AAAAAAAA', 'BBBBBBB', 'CCCCCCCC'], dtype='O')

chris-b1

#include <numeric>
#include <vector>
#include <iostream>
#include <string>

#include <random>
#include <chrono>
#include <algorithm>
#include <cstdint>
#include <cmath>

chris-b1

from collections import OrderedDict
from itertools import chain

import numba
import xarray as xr
from xarray.core.computation import UFuncSignature

def _map_sig(sig, dim_map):
    return [tuple(dim_map[x] for x in t)
            for t in sig]