我被困住了。在下面的代码中,我可以成功创建要查找的小计数据透视表,但不能产生总计。 [以下代码利用了arcgis模块;只需将表(在本例中为MSSQL表)转换为NumPy数组]
import numpy as np
import pandas as pd
import arcpy
table = "\\\\filserver\\MAP_PROJECTS\\LV_WEB\\SDE_CONNECTIONS\\LV_NEXUS.sde\\LV_NEXUS.DATAOWNER.NORTHEAST\\LV_NEXUS.DATAOWNER.NE_HARVEST_OPS"
HUID = "669-NMTC-139"
whereClause = """ "LV_HARVEST_UNIT_ID" = '{0}' """.format(HUID)
tableArray = arcpy.da.TableToNumPyArray(table, ['STAND_NUMB', 'SUPER_TYPE','STRATA', 'OS_TYPE', 'SILV_PRES', 'ACRES'], where_clause = whereClause)
df = pd.DataFrame(tableArray)
report = df.groupby(['SUPER_TYPE']).apply(lambda sub_df: sub_df.pivot_table(index=['STRATA', 'OS_TYPE', 'STAND_NUMB', 'SILV_PRES'], values=['ACRES'],aggfunc=np.sum, margins=True,margins_name= 'TOTAL'))
np.round(report,1)
这为每个“ SUPER_TYPE”组提供了总计,但是我无法创建总计。我尝试了以下方法:
grandtotal = np.round(np.sum(report),1)
grandtotal.name = 'Grand Total'
report.append(grandtotal)
那只会造成可怕的混乱。它附加了总计,但破坏了我的数据框的格式。
粘贴在下面的数据框不确定如何保留格式
STAND_NUMB SUPER_TYPE STRATA OS_TYPE SILV_PRES ACRES
0 3113 SH SH3B SH3B OSR/2SS/SCC 0.612748
1 3608 HW H3AB H3B OSR/2SS/SCC 12.936038
2 3105 HW H3AB H3B OSR/2SS/SCC 35.199887
3 3607 HS HS3B HS3B OSR/2SS/SCC 27.683348
4 3601 HW H3AB H3A OSR/2SS/SCC 11.941338
5 3603 HW H4B H4B OSR/2SS/SCC 25.307238
6 3092 HS HS3B HS3B OSR/2SS/SCC 17.331220
7 3600 HW H4B H4B OSR/2SS/SCC 13.443112
8 3596 HW H3AB H3B OSR/2SS/SCC 12.375962
9 3597 HW H3AB H3A OSR/2SS/SCC 41.639072
10 3591 SW S4BC S4A OSR/2SS/SCC 11.355869
11 3594 HS HS3B HS3B OSR/2SS/SCC 31.747874
12 3586 HW H3AB H3B OSR/2SS/SCC 19.437834
13 3588 HW H3AB H3A OSR/2SS/SCC 18.129702
14 3587 HS HS3B HS3B OSR/2SS/SCC 13.788853
15 3585 HW H3AB H3A OSR/2SS/SCC 25.775322
16 3582 SH SH3B SH3B OSR/2SS/SCC 11.026199
17 3581 HS HS3B HS3B OSR/2SS/SCC 16.634195
18 3589 HW H3AB H3A OSR/2SS/SCC 54.684222
19 3579 SH SH3B SH3B OSR/2SS/SCC 17.313354
20 3578 HW H4C_H2C H4C OSR/2SS/SCC 30.255013
21 3576 HW H3C H3C OSR/2SS/SCC 11.310230
22 3573 HW H3AB H3A OSR/2SS/SCC 30.369559
23 3575 HW H4C_H2C H4C OSR/2SS/SCC 53.088547
24 3569 HW H4A H4A OSR/2SS/SCC 12.809001
25 3567 HW H4B H4B OSR/2SS/SCC 24.026682
26 3568 HW H3AB H3B OSR/2SS/SCC 57.934207
27 3565 HW H4B H4B OSR/2SS/SCC 33.545768
28 3605 HW H3AB H3B OSR/2SS/SCC 74.424945
29 3580 HS HS3B HS3B OSR/2SS/SCC 8.062028
30 3571 HW H3AB H3A OSR/2SS/SCC 30.718121
31 3562 HW H3AB H3B OSR/2SS/SCC 22.774026
32 3110 SW S3C S3C OSR/2SS/SCC 2.240600
33 3120.1 SH SH3B SH3B OSR/2SS/SCC 3.726728
答案 0 :(得分:1)
根据您发布的示例:
def integration(func, a, n, r, n_steps):
z = r * np.exp(2j * np.pi * np.arange(0, 1, 1. / n_steps))
return math.factorial(n) * np.mean(func(a + z) / z**n)
np.allclose(1., integration(np.sin, a=0., n=1, r=1., n_steps=100))
True