python - 将 1x336 数组转换为 16x21 数组

Question

我正在尝试创建一个 1x336 列数组，并用 336 个要素类的属性表中的数据填充它。我想我已经成功完成了这个任务。接下来，我想将这个1x336数组重新排列成16x21数组，并将其保存为txt文件。

任何帮助将不胜感激。

import arcpy
from arcpy import env
import numpy

arcpy.env.workspace="C:\Users\mbs7038\Documents\New_Landsat_Imagery\For_Area_Calc\Minimize_DEM_Analysis\PolyConvert\out_prj.gdb"
arcpy.env.overwriteOutput=True


filename="C:\Users\mbs7038\Documents\New_Landsat_Imagery\For_Area_Calc\Minimize_DEM_Analysis\PolyConvert\areatable.txt"

fcs=arcpy.ListFeatureClasses("*")
areafield="Area_km"

n=16
areaColumn=[]
arealist=numpy.zeros([16,21],dtype=numpy.float64)
areaset=set()
print arealist

for fc in fcs:
    print fc
    rows = arcpy.SearchCursor(fc)
    for row in rows:
        area=row.getValue(areafield)
        print area
        print 'appending area'
        if area not in areaset:
            areaColumn.append(area)
            print'adding area'
            areaset.add(area)
            print areaColumn

for i in range(n):
    for j in range(0,21):
        arealist[i,j]=areaColumn[:] #This is where I have been trying to call each row from areaColumn
        print arealist

我也尝试过 reshape 功能，但没有成功:

finalarea=arealist.reshape(arealist.size//16,21)
print finalarea

Answer 1

您应该知道 reshape 采用元组作为参数。以下内容应该有效:

finalarea = arealist.reshape((16,21))