2011-04-11 113 views
3

我已经在x,y,z(.csv格式)中为网格数据编写了脚本(Python 2.6),并显示了数据的等高线图。程序在使用“matplotlib.mlab.griddata”时挂起

该脚本适用于某些数据集,但不适用于其他数据集 - 即使两个数据集都使用相同的脚本创建。

要绘制的数据集是通过从主数据集中进行子采样创建的。

以下是every_4.csv(对每4行进行二次采样的主数据集)的示例。

Easting Northing TMI_nT 
526243.0 5254128.9 62278.8 
526259.4 5254128.9 62352.3 
526275.9 5254128.9 62303.3 
526292.3 5254128.9 62361.9 
526308.8 5254128.9 62667.8 
526325.2 5254128.9 62668.6 
526341.7 5254128.9 61700.1 
526358.1 5254128.9 62029.6 
526374.6 5254128.9 62042.7 

该数据使用我的脚本正确绘图。

“every_3.csv”,这是相同的形式作为every_4.csv使我的脚本挂(没有错误信息),当它试图执行:

zi = griddata(x, y, z, xi, yi)

这里是我使用的脚本:

### program to test gridding and contouring 

import numpy as N 
import scipy as S 
from matplotlib.mlab import griddata 
import matplotlib.pyplot as P 
import matplotlib.cm as CM 

longarray = N.loadtxt('every_3.csv', skiprows=1, delimiter=',') 
x = longarray[:,0] 
y = longarray[:,1] 
z = longarray[:,2] 

max_x = max(x) 
min_x = min(x) 
max_y = max(y) 
min_y = min(y) 

##print max_y 
##print min_x 
##print max_x 
##print min_y 

xi = N.linspace(min_x, max_x) 
yi = N.linspace(min_y, max_y) 

zi = griddata(x, y, z, xi, yi) 
print zi 
CS = P.contourf(xi,yi,zi,15,cmap=CM.RdYlBu) 

P.show() 

我无法弄清楚为什么这个脚本挂起了一些文件,而不是其他人。

注:如果我在Excel中打开every_3.csv和删除一些行(比如文件中的行的50%),我可以让脚本运行...

更新

这里是一个更完整的数据集:

Easting Northing TMI_nT 
526243 5254128.9 62278.8 
526247.1 5254128.9 62413.3 
526251.2 5254128.9 62398.6 
526255.3 5254128.9 62355.7 
526259.4 5254128.9 62352.3 
526263.6 5254128.9 62327.8 
526267.7 5254128.9 62279.6 
526271.8 5254128.9 62322.1 
526275.9 5254128.9 62303.3 
526280 5254128.9 62375.1 
526284.1 5254128.9 62561.4 
526288.2 5254128.9 62302.4 
526292.3 5254128.9 62361.9 
526374.6 5254128.9 62042.7 
526378.7 5254128.9 62139.6 
526382.8 5254128.9 61891.5 
526386.9 5254128.9 61937.2 
526391 5254128.9 62238.7 
526395.1 5254128.9 62344.9 
526399.2 5254128.9 62220.4 
526403.3 5254128.9 62027 
526407.4 5254128.9 62392.2 
526411.6 5254128.9 63252.4 
526415.7 5254128.9 62951.8 
526419.8 5254128.9 62504.5 
526423.9 5254128.9 62927.6 
526428 5254128.9 62813.9 
526432.1 5254128.9 63381.4 
526436.2 5254128.9 63458.5 
526440.3 5254128.9 63273 
526444.4 5254128.9 62945 
526448.6 5254128.9 62466.2 
526452.7 5254128.9 62300.3 
526456.8 5254128.9 62164.3 
526460.9 5254128.9 62144.7 
526465 5254128.9 62216.7 
526469.1 5254128.9 62307.3 
526473.2 5254128.9 62437.6 
526477.3 5254128.9 62495 
526481.4 5254128.9 62256.1 
526485.6 5254128.9 61951.2 
526489.7 5254128.9 61632 
526493.8 5254128.9 61221.6 
526497.9 5254128.9 62414.3 
526502 5254128.9 64152.7 
526506.1 5254128.9 61964.7 
526510.2 5254128.9 61952.5 
526514.3 5254128.9 62104.2 
526518.4 5254128.9 62190.4 
526522.6 5254128.9 62334.8 
526526.7 5254128.9 62468.8 
526530.8 5254128.9 62437.3 
526296.4 5253951.8 62138 
526300.6 5253951.8 62283.3 
526304.7 5253951.8 62336 
526308.8 5253951.8 62367.6 
526312.9 5253951.8 62416 
526317 5253951.8 62395.3 
526321.1 5253951.8 62364.1 
526325.2 5253951.8 62363.2 
526329.3 5253951.8 62292.6 
526333.4 5253951.8 62252 
526337.6 5253951.8 62179.1 
526341.7 5253951.8 62086.8 
526345.8 5253951.8 62069.6 
526349.9 5253951.8 62108.4 
526354 5253951.8 61994 
526358.1 5253951.8 61909.1 
526362.2 5253951.8 61943.1 
526366.3 5253951.8 61918.6 
526370.4 5253951.8 61895.9 
526374.6 5253951.8 61871.6 
526378.7 5253951.8 61821.4 
526382.8 5253951.8 61778.1 
526386.9 5253951.8 61738.2 
526391 5253951.8 61644.5 
526395.1 5253951.8 61555.8 
526399.2 5253951.8 61540 
526403.3 5253951.8 61549.6 
526407.4 5253951.8 61596.4 
526411.6 5253951.8 61566.5 
526415.7 5253951.8 61565.1 
526419.8 5253951.8 61287.6 
526423.9 5253951.8 61368 
526428 5253951.8 61481.5 
526432.1 5253951.8 61228.8 
526436.2 5253951.8 61024.6 
526440.3 5253951.8 60960.9 
526444.4 5253951.8 61146.7 
526448.6 5253951.8 61240.8 
526452.7 5253951.8 61396.5 
526456.8 5253951.8 61536.9 
526460.9 5253951.8 61677.1 
526465 5253951.8 61715.6 
526469.1 5253951.8 61749.8 
526473.2 5253951.8 61809.1 
526477.3 5253951.8 61939.2 
526481.4 5253951.8 61913.3 
526485.6 5253951.8 62035.7 
526489.7 5253951.8 62108.9 
526493.8 5253951.8 62025.4 
526497.9 5253951.8 61929.1 
526502 5253951.8 61947.2 
526506.1 5253951.8 62182.8 
526510.2 5253951.8 62239.3 
526514.3 5253951.8 62071.7 
526518.4 5253951.8 62054.5 
526522.6 5253951.8 62001.3 
526526.7 5253951.8 61993.5 
526530.8 5253951.8 62009.3 
526534.9 5253951.8 61966.5 
526539 5253951.8 61947.2 
526543.1 5253951.8 61936.4 
526547.2 5253951.8 61974 
526551.3 5253951.8 62023.6 
526555.4 5253951.8 62068.7 
526559.6 5253951.8 62096.1 
526563.7 5253951.8 62113.4 
526567.8 5253951.8 62085.1 
526571.9 5253951.8 62100.7 
526576 5253951.8 62180.1 
526580.1 5253951.8 62231.8 
526584.2 5253951.8 62142.9 
526588.3 5253951.8 62137.1 
526592.4 5253951.8 62135.4 
526596.6 5253951.8 62118.5 
526600.7 5253951.8 62104.9 
526604.8 5253951.8 62126.5 
526608.9 5253951.8 62129.7 
526613 5253951.8 62127 
526617.1 5253951.8 62122.8 
526621.2 5253951.8 62091.5 
526625.3 5253951.8 62143.7 
526629.4 5253951.8 62144.2 
526633.6 5253951.8 62148.1 
526637.7 5253951.8 62145.6 
526641.8 5253951.8 62247.1 
526645.9 5253951.8 62267.5 
526650 5253951.8 62131.8 
526243 5253955.9 62073.3 
526247.1 5253955.9 62018.5 
526251.2 5253955.9 61948.4 
526255.3 5253955.9 61965.1 
526259.4 5253955.9 61980.3 
526263.6 5253955.9 61982.2 
526267.7 5253955.9 61985.3 
526271.8 5253955.9 61979.6 
526275.9 5253955.9 61999.4 
526280 5253955.9 62025.7 
526284.1 5253955.9 62064.8 
526288.2 5253955.9 62068.6 
526292.3 5253955.9 62099.2 
526296.4 5253955.9 62172.6 
526300.6 5253955.9 62283.8 
526304.7 5253955.9 62440.8 
526308.8 5253955.9 62458.1 
526312.9 5253955.9 62588.3 
526317 5253955.9 62521.1 
526321.1 5253955.9 62390.8 
526325.2 5253955.9 62310.4 
526329.3 5253955.9 62271 
526333.4 5253955.9 62214.3 
526337.6 5253955.9 62118.8 
526341.7 5253955.9 62024.5 
526345.8 5253955.9 61989.4 
526349.9 5253955.9 61943.5 
526354 5253955.9 61835.8 

526506.1 5253955.9 61915.8 
526510.2 5253955.9 62043 
526514.3 5253955.9 62039.2 
526518.4 5253955.9 62021.1 
526522.6 5253955.9 62014 
526526.7 5253955.9 61930.3 
526530.8 5253955.9 61880.7 
526534.9 5253955.9 61758.4 
526539 5253955.9 61733.5 
526543.1 5253955.9 61787.5 
526547.2 5253955.9 61862.6 
526551.3 5253955.9 61934.6 
526555.4 5253955.9 61990.5 
526559.6 5253955.9 62059.5 
526563.7 5253955.9 62092 
526567.8 5253955.9 62104.3 
526571.9 5253955.9 62146.3 
526576 5253955.9 62242.9 
526580.1 5253955.9 62420.5 
526584.2 5253955.9 62204.1 
526588.3 5253955.9 62178.4 
526592.4 5253955.9 62159 
526596.6 5253955.9 62147.1 
526600.7 5253955.9 62159.6 
526604.8 5253955.9 62144.3 
526608.9 5253955.9 62131.1 
526613 5253955.9 62121.7 
526617.1 5253955.9 62117.9 
526621.2 5253955.9 62084.7 
526625.3 5253955.9 62139.2 
526629.4 5253955.9 62136.5 
526633.6 5253955.9 62142 
526637.7 5253955.9 62144.3 
526641.8 5253955.9 62250.2 
526645.9 5253955.9 62274.5 
526650 5253955.9 62119 
526243 5253960 62104 
526247.1 5253960 62041.8 
526251.2 5253960 61978.7 
526255.3 5253960 61993.8 
526259.4 5253960 61998.6 
526263.6 5253960 61981 
526267.7 5253960 61982 
526271.8 5253960 61995.3 
526275.9 5253960 62010.1 
526280 5253960 62030.7 
526284.1 5253960 62061.3 
526288.2 5253960 62089.9 
526292.3 5253960 62115.6 
526296.4 5253960 62205.4 
526300.6 5253960 62319.9 
526304.7 5253960 62392.1 
526308.8 5253960 62434.8 
526312.9 5253960 62466.7 
526317 5253960 62479.9 
526321.1 5253960 62358.1 
526325.2 5253960 62281.7 
526329.3 5253960 62214.8 
526333.4 5253960 62131.9 
526382.8 5253960 61613.3 
526386.9 5253960 61591.6 
526391 5253960 61406.2 
526395.1 5253960 61179.4 
526399.2 5253960 61291.8 
526403.3 5253960 61307.2 
526407.4 5253960 61304.3 
526411.6 5253960 61320.5 
526415.7 5253960 61376.8 
526419.8 5253960 61160.5 
526423.9 5253960 61045.8 
526428 5253960 61138.2 
526432.1 5253960 61113.1 
526436.2 5253960 60926.6 
526440.3 5253960 60793.8 
526444.4 5253960 60775.6 
526448.6 5253960 60776.9 
526452.7 5253960 60979.6 
526456.8 5253960 61309.1 
526460.9 5253960 61772.9 
526465 5253960 61665.1 
526469.1 5253960 61554.1 
526473.2 5253960 61569.5 
526477.3 5253960 61725.2 
526481.4 5253960 61846 
526485.6 5253960 61948.4 
526489.7 5253960 61944.3 
526493.8 5253960 61848 
526497.9 5253960 61677.3 
526502 5253960 61516.1 
526506.1 5253960 61634.4 
526510.2 5253960 61884.9 
526514.3 5253960 61975.8 
526518.4 5253960 61909.8 
526522.6 5253960 61905.6 
526526.7 5253960 61835 
526530.8 5253960 61692.3 
526534.9 5253960 61408.4 
526539 5253960 61533.9 
526543.1 5253960 61670.4 
526547.2 5253960 61785.9 
526551.3 5253960 61878.6 
526555.4 5253960 61963.3 
526559.6 5253960 62048.6 
526563.7 5253960 62070.7 
526567.8 5253960 62099.5 
526571.9 5253960 62140.9 
526576 5253960 62242.6 
526580.1 5253960 62255 
526584.2 5253960 62171.5 
526588.3 5253960 62180.7 
526592.4 5253960 62164.1 
526596.6 5253960 62158.9 
526600.7 5253960 62147.7 
526604.8 5253960 62146.6 
526608.9 5253960 62129 
526613 5253960 62122.5 
526617.1 5253960 62114.6 
526621.2 5253960 62080.8 
526625.3 5253960 62140.4 
526629.4 5253960 62142.5 
526633.6 5253960 62149.3 
526637.7 5253960 62152 
526641.8 5253960 62263.4 
526645.9 5253960 62291.9 
526650 5253960 62286.3 
526243 5253964.1 62092 
526247.1 5253964.1 62041.8 
526251.2 5253964.1 61978.3 
526255.3 5253964.1 62000.1 
526259.4 5253964.1 62012.2 
526263.6 5253964.1 62027.1 
526267.7 5253964.1 62001.6 
526271.8 5253964.1 62003.2 
526275.9 5253964.1 61988.3 
526280 5253964.1 62028.8 
526284.1 5253964.1 62056.9 
526288.2 5253964.1 62075.6 
526292.3 5253964.1 62149.4 
526296.4 5253964.1 62248 
526300.6 5253964.1 62365.5 
526555.4 5253964.1 61980.9 
526559.6 5253964.1 62035.4 
526563.7 5253964.1 62055.7 
526567.8 5253964.1 62100.7 
526571.9 5253964.1 62146.3 
526576 5253964.1 62199 
526580.1 5253964.1 62195.8 
526584.2 5253964.1 62152.1 
526588.3 5253964.1 62147.5 
526592.4 5253964.1 62192.7 
526596.6 5253964.1 62123.1 
526600.7 5253964.1 62114 
526604.8 5253964.1 62115.9 
526608.9 5253964.1 62108.7 
526613 5253964.1 62106.3 
526617.1 5253964.1 62101.6 
526621.2 5253964.1 62065.8 
526625.3 5253964.1 62131 
526629.4 5253964.1 62133.5 
526633.6 5253964.1 62139.8 
526637.7 5253964.1 62143 
526641.8 5253964.1 62245.9 
526645.9 5253964.1 62265.8 
526650 5253964.1 62302.6 
526243 5253968.3 62086 
526247.1 5253968.3 62035.9 
526251.2 5253968.3 61980 
526255.3 5253968.3 61995.1 
526259.4 5253968.3 62021.7 
526263.6 5253968.3 62012.6 
526267.7 5253968.3 61992.3 
526271.8 5253968.3 62024.4 
526275.9 5253968.3 61968.1 
526280 5253968.3 62030.8 
526284.1 5253968.3 62045.5 
526288.2 5253968.3 62092.9 
526292.3 5253968.3 62189.2 
526296.4 5253968.3 62316.8 
526300.6 5253968.3 62476.9 
526304.7 5253968.3 62513.2 
526308.8 5253968.3 62437.8 
526312.9 5253968.3 62356.8 
526317 5253968.3 62305.8 
526321.1 5253968.3 62248.8 
526325.2 5253968.3 62187.3 
526329.3 5253968.3 62115.2 
526333.4 5253968.3 62031 
526337.6 5253968.3 62028.7 
526341.7 5253968.3 61980.8 
526345.8 5253968.3 61979.9 
526349.9 5253968.3 61825.2 
526354 5253968.3 61721.9 
526358.1 5253968.3 61733.8 
526362.2 5253968.3 61654.4 
526366.3 5253968.3 61493.2 
526370.4 5253968.3 61363.9 
526374.6 5253968.3 61270.6 
526378.7 5253968.3 61302.3 
526382.8 5253968.3 61352.9 
526386.9 5253968.3 61309 
526391 5253968.3 61151.5 
526395.1 5253968.3 60971.2 
526399.2 5253968.3 60867.7 
526403.3 5253968.3 60888.3 
526407.4 5253968.3 60935 
526411.6 5253968.3 60938.5 
526415.7 5253968.3 61003.7 
526419.8 5253968.3 61103.4 
526423.9 5253968.3 60876.9 
526428 5253968.3 60551.8 
526432.1 5253968.3 60572.6 
526436.2 5253968.3 60717 
526440.3 5253968.3 60755.9 
526444.4 5253968.3 60572.4 
526448.6 5253968.3 60121.9 
526563.7 5253968.3 62039.3 
526567.8 5253968.3 62088.7 
526571.9 5253968.3 62134.1 
526576 5253968.3 62154.3 
526580.1 5253968.3 62181.4 
526584.2 5253968.3 62209.6 
526588.3 5253968.3 62200.7 
526592.4 5253968.3 62210.8 
526596.6 5253968.3 62184.9 
526600.7 5253968.3 62175.3 
526604.8 5253968.3 62120.9 
526608.9 5253968.3 62105.4 
526613 5253968.3 62100.4 
526617.1 5253968.3 62089.4 
526621.2 5253968.3 62048.4 
526625.3 5253968.3 62109.9 
526629.4 5253968.3 62118.6 
526633.6 5253968.3 62114.2 
526637.7 5253968.3 62122.6 
526641.8 5253968.3 62244.9 
526645.9 5253968.3 62267.5 
526650 5253968.3 62310.7 
526243 5253972.4 62069.2 
526247.1 5253972.4 62038.8 
526251.2 5253972.4 62000.6 
526255.3 5253972.4 62021.2 
526259.4 5253972.4 62007 
526263.6 5253972.4 62003.1 
526267.7 5253972.4 62021.6 
526271.8 5253972.4 62052.7 
526275.9 5253972.4 62073.4 
526280 5253972.4 62056.2 
526284.1 5253972.4 62089.7 
526288.2 5253972.4 62148.2 
526292.3 5253972.4 62244.1 
526296.4 5253972.4 62372 
526300.6 5253972.4 62451.7 
526304.7 5253972.4 62476 
526308.8 5253972.4 62392.1 
526312.9 5253972.4 62354.4 
526317 5253972.4 62276.2 
526321.1 5253972.4 62209.1 
526325.2 5253972.4 62164.2 
526329.3 5253972.4 62089.1 
526333.4 5253972.4 62038.1 
526337.6 5253972.4 61983.1 
526341.7 5253972.4 61910.2 
526345.8 5253972.4 61794.9 
526349.9 5253972.4 61654 
526354 5253972.4 61547 
526358.1 5253972.4 61532.1 
526362.2 5253972.4 61464.3 
526366.3 5253972.4 61343.5 
526370.4 5253972.4 61173 
526374.6 5253972.4 61061.3 
526378.7 5253972.4 61041.7 
526382.8 5253972.4 61234.2 
526386.9 5253972.4 61196.5 
526391 5253972.4 61047.1 
526395.1 5253972.4 60856.4 
526399.2 5253972.4 60764.9 
526403.3 5253972.4 60778.6 
526407.4 5253972.4 60836.6 
526411.6 5253972.4 60887.4 
526415.7 5253972.4 61012 
526419.8 5253972.4 61134.9 
526423.9 5253972.4 60972.7 
526428 5253972.4 60599.3 
526432.1 5253972.4 60154.9 
526436.2 5253972.4 60802.8 
526440.3 5253972.4 60958.2 
526444.4 5253972.4 60530.1 
526448.6 5253972.4 60229.9 
526452.7 5253972.4 60197.6 
526456.8 5253972.4 60425.8 
526460.9 5253972.4 60450.8 
526465 5253972.4 59787.6 
526469.1 5253972.4 59404.4 
526473.2 5253972.4 60447.7 
526477.3 5253972.4 61011.9 
526481.4 5253972.4 61304 
526485.6 5253972.4 61404 
526489.7 5253972.4 61431.8 
526493.8 5253972.4 61455.5 
526497.9 5253972.4 61489.8 
526502 5253972.4 61445.9 
526506.1 5253972.4 61581.3 
526510.2 5253972.4 61723.1 
526514.3 5253972.4 61744.5 
526518.4 5253972.4 61759.3 
526522.6 5253972.4 61651.6 
526526.7 5253972.4 61357.4 
526530.8 5253972.4 61088.1 
526534.9 5253972.4 61505.6 
526539 5253972.4 61793.5 
526543.1 5253972.4 61846.8 
526547.2 5253972.4 61890.7 
526551.3 5253972.4 61929 
526555.4 5253972.4 61953.5 
526559.6 5253972.4 62004 
526563.7 5253972.4 62017.1 
526567.8 5253972.4 62069.5 
526571.9 5253972.4 62119.6 
526576 5253972.4 62142.3 
526580.1 5253972.4 62190.1 
526584.2 5253972.4 62239.9 
526588.3 5253972.4 62268.3 
526592.4 5253972.4 62257.5 
526596.6 5253972.4 62212.8 
526600.7 5253972.4 62193.3 
526604.8 5253972.4 62137 
526608.9 5253972.4 62084.3 
526613 5253972.4 62075.9 
526617.1 5253972.4 62072.8 
526621.2 5253972.4 62030.6 
526625.3 5253972.4 62100.9 
526629.4 5253972.4 62107.4 
526633.6 5253972.4 62124.6 
526637.7 5253972.4 62140.9 
526641.8 5253972.4 62249.8 
526645.9 5253972.4 62275.2 
526650 5253972.4 62325 
526243 5253976.5 62069.2 
526247.1 5253976.5 62037.5 
526251.2 5253976.5 61984.2 
526255.3 5253976.5 62000.4 
526259.4 5253976.5 62020.3 
526263.6 5253976.5 62019.6 
526267.7 5253976.5 62028.1 
526271.8 5253976.5 62079.9 
526275.9 5253976.5 62095.9 
526280 5253976.5 62084.5 
526284.1 5253976.5 62129.4 
526288.2 5253976.5 62203.6 
526292.3 5253976.5 62304.3 
526296.4 5253976.5 62380.6 
526300.6 5253976.5 62398 
526304.7 5253976.5 62358.6 
526308.8 5253976.5 62323.8 
526312.9 5253976.5 62283 
526317 5253976.5 62240.6 
526321.1 5253976.5 62175.5 
526325.2 5253976.5 62113.9 
526329.3 5253976.5 62021.2 
526333.4 5253976.5 61958.1 
526337.6 5253976.5 61902.3 
526341.7 5253976.5 61846.7 
526345.8 5253976.5 61647.2 
526349.9 5253976.5 61442.7 
526354 5253976.5 61346.2 
526358.1 5253976.5 61387.1 
526362.2 5253976.5 61324.2 
526366.3 5253976.5 61168.7 
526370.4 5253976.5 61043.5 
526374.6 5253976.5 60854.9 
526378.7 5253976.5 60797.1 
526382.8 5253976.5 60889.2 
526386.9 5253976.5 60915.6 
526391 5253976.5 60822.2 
526395.1 5253976.5 60760.4 
526399.2 5253976.5 60700.1 
526403.3 5253976.5 60540.3 
526407.4 5253976.5 60525.5 
526411.6 5253976.5 60693.8 
526415.7 5253976.5 60905.6 
526419.8 5253976.5 61065.2 
526423.9 5253976.5 60992.9 
526428 5253976.5 60873.2 
526432.1 5253976.5 60135.2 
526436.2 5253976.5 60421.8 
526440.3 5253976.5 60699.9 
526444.4 5253976.5 60422.8 
526448.6 5253976.5 60075.5 
526452.7 5253976.5 59948.4 
526456.8 5253976.5 60170.3 
526460.9 5253976.5 60534 
526465 5253976.5 59849.7 
526469.1 5253976.5 59221.9 
526473.2 5253976.5 59961.2 
526477.3 5253976.5 60589 
526481.4 5253976.5 60958.8 
526485.6 5253976.5 61166 
526489.7 5253976.5 61296.1 
526493.8 5253976.5 61335.3 
526497.9 5253976.5 61448 
526502 5253976.5 61423.1 
526506.1 5253976.5 61574.7 
526510.2 5253976.5 61769.1 
526514.3 5253976.5 61774.9 
526518.4 5253976.5 61847.8 
526522.6 5253976.5 61888.6 
526526.7 5253976.5 61915.7 
526530.8 5253976.5 61965.2 
526534.9 5253976.5 61939 
526539 5253976.5 61954.5 
526543.1 5253976.5 61935.2 
526547.2 5253976.5 61942.9 
526551.3 5253976.5 61951.1 
526555.4 5253976.5 61998.7 
526559.6 5253976.5 61981.4 
526563.7 5253976.5 61991.2 
526567.8 5253976.5 62052.1 
526571.9 5253976.5 62141.2 
526576 5253976.5 62167.5 
526580.1 5253976.5 62175.5 
526584.2 5253976.5 62277.2 
526588.3 5253976.5 62363.1 
526592.4 5253976.5 62262.3 
526596.6 5253976.5 62178.3 
526600.7 5253976.5 62151.2 
526604.8 5253976.5 62143.3 
526608.9 5253976.5 62092.3 
526613 5253976.5 62073.4 
526617.1 5253976.5 62072.3 
526621.2 5253976.5 62030.2 
526625.3 5253976.5 62096.5 
526629.4 5253976.5 62110.7 
526633.6 5253976.5 62115.6 
526637.7 5253976.5 62139 
526641.8 5253976.5 62251.8 
526645.9 5253976.5 62277.1 
526650 5253976.5 62337.3 
526243 5253980.6 62066.3 
526247.1 5253980.6 62048 
526251.2 5253980.6 62002.1 
526255.3 5253980.6 62005.9 
526259.4 5253980.6 62016.9 
526263.6 5253980.6 62024 
526267.7 5253980.6 62054.9 
526271.8 5253980.6 62109.2 
526275.9 5253980.6 62090.7 
526280 5253980.6 62121.7 
526284.1 5253980.6 62169.8 
526288.2 5253980.6 62245.1 
526292.3 5253980.6 62311.2 
526296.4 5253980.6 62336.4 
526300.6 5253980.6 62305.7 
526304.7 5253980.6 62294.3 
526308.8 5253980.6 62252.1 
526312.9 5253980.6 62203 
526317 5253980.6 62172.3 
526321.1 5253980.6 62097.8 
526325.2 5253980.6 62031.2 
526329.3 5253980.6 61944.4 
526333.4 5253980.6 61889.2 
526337.6 5253980.6 61820.7 
526341.7 5253980.6 61742.6 
526345.8 5253980.6 61514 
526349.9 5253980.6 61344.2 
526354 5253980.6 61245.2 
526358.1 5253980.6 61238.2 
526362.2 5253980.6 61181.5 
526366.3 5253980.6 61034 
526370.4 5253980.6 60946.3 
526374.6 5253980.6 60761.3 
526378.7 5253980.6 60579.3 
526382.8 5253980.6 60575.5 
526386.9 5253980.6 60797.7 
526391 5253980.6 60773.6 
526395.1 5253980.6 60771.5 
526399.2 5253980.6 60727.6 
526403.3 5253980.6 60545.5 
526407.4 5253980.6 60405.8 
526411.6 5253980.6 60482.8 
526415.7 5253980.6 60903.6 
526419.8 5253980.6 61087.6 
526423.9 5253980.6 61206.6 
526428 5253980.6 61175.3 
526432.1 5253980.6 60749.5 
526436.2 5253980.6 60558.7 
526440.3 5253980.6 60418 
526444.4 5253980.6 60293.5 
526448.6 5253980.6 60012 
526452.7 5253980.6 59445.5 
526456.8 5253980.6 59617.3 
526460.9 5253980.6 60258.1 
526465 5253980.6 60222.1 
526469.1 5253980.6 59939.5 
526473.2 5253980.6 60081.4 
526477.3 5253980.6 60348.9 
526481.4 5253980.6 60695.2 
526485.6 5253980.6 60930.1 
526489.7 5253980.6 61133.6 
526493.8 5253980.6 61264.2 
526497.9 5253980.6 61349.5 
526502 5253980.6 61355.8 
526506.1 5253980.6 61398.3 
526510.2 5253980.6 61698.9 
526514.3 5253980.6 61786.7 
526518.4 5253980.6 61866.2 
526522.6 5253980.6 62075.3 
526526.7 5253980.6 62405.3 
526530.8 5253980.6 62759.8 
526534.9 5253980.6 62307.7 
526539 5253980.6 62091.4 
526543.1 5253980.6 61996.8 
526547.2 5253980.6 61953.2 
526551.3 5253980.6 61935.6 
526555.4 5253980.6 61932.6 
526559.6 5253980.6 61922.5 
526563.7 5253980.6 61940.6 
526567.8 5253980.6 61991.2 
526571.9 5253980.6 62040.7 
526576 5253980.6 62075.9 
526580.1 5253980.6 62104.3 
526584.2 5253980.6 62151.5 
526588.3 5253980.6 62193.7 
526592.4 5253980.6 62166.6 
526596.6 5253980.6 62121.4 
526600.7 5253980.6 62098.5 
526604.8 5253980.6 62100 
526608.9 5253980.6 62070.9 
526613 5253980.6 62061.9 
526617.1 5253980.6 62064.2 
526621.2 5253980.6 62018.3 
526625.3 5253980.6 62088.8 
526629.4 5253980.6 62102.2 
526633.6 5253980.6 62107.7 
526637.7 5253980.6 62133.7 
526641.8 5253980.6 62251.3 
526645.9 5253980.6 62280.6 
526650 5253980.6 62348 
526243 5253984.7 62070.5 
526247.1 5253984.7 62032.9 
526251.2 5253984.7 61995.8 
526255.3 5253984.7 62013.9 
526259.4 5253984.7 62021.1 
526263.6 5253984.7 62031.5 
526267.7 5253984.7 62062.8 
526271.8 5253984.7 62111.6 
526275.9 5253984.7 62114.9 
526280 5253984.7 62139 
526284.1 5253984.7 62200.9 
526288.2 5253984.7 62248.8 
526292.3 5253984.7 62278.6 
526296.4 5253984.7 62268.5 
526300.6 5253984.7 62259.9 
526304.7 5253984.7 62234.8 
526308.8 5253984.7 62189.8 
526312.9 5253984.7 62159.2 
526317 5253984.7 62085 
526321.1 5253984.7 62005 
526325.2 5253984.7 61934.3 
526329.3 5253984.7 61855.4 
526333.4 5253984.7 61811.4 
526337.6 5253984.7 61785.8 
526341.7 5253984.7 61567.1 
526345.8 5253984.7 61412.7 
526349.9 5253984.7 61300.2 
526354 5253984.7 61168 
526358.1 5253984.7 61129.6 
526362.2 5253984.7 61029.5 
526366.3 5253984.7 60792.3 
526370.4 5253984.7 60739 
526374.6 5253984.7 60601.2 
526378.7 5253984.7 60352.3 
526382.8 5253984.7 60250.4 
526386.9 5253984.7 60371.7 
526391 5253984.7 60576.7 
526395.1 5253984.7 60709.4 
526399.2 5253984.7 60647.8 
526403.3 5253984.7 60407.7 
526407.4 5253984.7 60270.3 
526411.6 5253984.7 60235.8 
526415.7 5253984.7 60576.9 
526419.8 5253984.7 60782.5 
526423.9 5253984.7 61177.2 
526428 5253984.7 61308.1 
526432.1 5253984.7 61268.4 
526436.2 5253984.7 60831.1 
526440.3 5253984.7 60244.9 
526444.4 5253984.7 60060.9 
526448.6 5253984.7 60139.4 
526452.7 5253984.7 59810.3 
526456.8 5253984.7 59954 
526460.9 5253984.7 60277.9 
526465 5253984.7 60327.2 
526469.1 5253984.7 60454.4 
526473.2 5253984.7 60387.6 
526477.3 5253984.7 60202.1 
526481.4 5253984.7 60292.2 
526485.6 5253984.7 60657.1 
526489.7 5253984.7 60909 
526493.8 5253984.7 61070.8 
526497.9 5253984.7 61128.9 
526502 5253984.7 61233.6 
526506.1 5253984.7 61286.2 
526510.2 5253984.7 61543.5 
526514.3 5253984.7 61691.4 
526518.4 5253984.7 61822.6 
526522.6 5253984.7 62016.1 
526526.7 5253984.7 62274.3 
526530.8 5253984.7 62299.4 
526534.9 5253984.7 62263.7 
526539 5253984.7 62161.4 
526543.1 5253984.7 62070.3 
526547.2 5253984.7 61992.3 
526551.3 5253984.7 61919.4 
526555.4 5253984.7 61842.4 
526559.6 5253984.7 61810.8 
526563.7 5253984.7 61862.3 
526567.8 5253984.7 61926.4 
526571.9 5253984.7 61919 
526576 5253984.7 61948.4 
526580.1 5253984.7 61989.3 
526584.2 5253984.7 62017 
526588.3 5253984.7 62065.8 
526592.4 5253984.7 62058.4 
526596.6 5253984.7 62053.2 
526600.7 5253984.7 62041.8 
526604.8 5253984.7 62066.9 
526608.9 5253984.7 62072.8 
526613 5253984.7 62072.4 
526617.1 5253984.7 62055.3 

对不起小姐对齐项,这是来自复制出来的MS Excel的...

数据被安排为一系列线条,当它们组合时,由一个网格覆盖由上下最大点'x'和'y'值所组成的一个网格坐标列表。

导致我的脚本挂起的问题是,我试图网格化的子采样数据集,以便将它的图像与主数据集进行比较,其中包含错误对齐的行开始点和结束点。对于使用奇数的子区间创建的所有子采样数据集都是如此。

我通过在对数据集进行二次采样的for循环中使用额外检查来解决了该问题。

这里是固定的“子样本”代码。

- Note: The plotting code works seamlessly. 

    def sub_sample(): 
     print "" 
     print " - This program will sub-sample a dataset for every <n> datapoint." 
     print " - <n> should realistically should be between 1 and 10." 
     print " - If <n> > 10, interpretation confidence is reduced significantly." 
     print "" 
     n = raw_input(" - What value should <n> take?: ") 

     if int(n) > 0 and int(n) < 2001: 
      print "" 
      print " - You have chosen to subsample the data every "+str(n)+" datapoints." 

      perc = (float(1)/float(n)*int(100)) 
      print " - This corresponds to "+str(perc)+" percent of the data." 

      indataarray = numpy.loadtxt("out.csv", skiprows=1, delimiter=',') 

      out_name = "every_"+str(n)+".csv"  

      t = indataarray.shape 
      totalrows = t[0] 
      totalcolumns = t[1] 
      holding_array = numpy.zeros([totalrows, totalcolumns]) 

      for i in range(totalrows): 

       if ((i % 100) % int(n) == 0): 
        for j in range(totalcolumns): 
         holding_array[i,j] = indataarray[i,j] 

      no_zeros = (holding_array == 0).sum(1) 
      new_holding = holding_array[no_zeros == 0, :] 
      numpy.savetxt(out_name, new_holding, delimiter=',', fmt='%f') 

      hdr_c1 = 'Easting,' 
      hdr_c2 = 'Northing,' 
      hdr_c3 = 'TMI_nT' 

      f = open(out_name) 
      text = f.read() 
      f.close() 

      f = open(out_name, 'w') 
      f.write(hdr_c1+hdr_c2+hdr_c3+'\n') 
      f.write(text) 
      f.close 
      print " - The file "+out_name+" has been created." 

     else: 
      print "" 
      print " - You have entered an unrealistic value for <n>." 
      print " - Please try again." 
      sub_sample() 
+0

我可以使用脚本绘制every_3.csv的削减版本... 我得到的错误: 致命的Python错误:PyEval_RestoreThread:NULL TSTATE 此应用程序已请求运行时终止它在一个不寻常的方式。 有关更多信息,请联系应用程序的支持团队。 – enargee 2011-04-11 01:46:45

+0

顺便说一句,没有必要手工编辑csv文件来保留每4行......你可以做'every_4 = longarray [:: 4]'。 – 2011-04-11 16:47:31

+0

我已合并您的两个未注册帐户,您现在可以编辑您的问题并发表评论。请注意,为了使您的总帖子在大小限制下,我必须从第二个示例数据集中移除最后8行。请不要发布更多信息作为答案,答案仅保留用于解决您的问题。 – 2011-04-12 11:38:18

回答

4

它的失败,因为你想插在非常奇怪的区域。

看看你的输入坐标,你的数据全部排成一行,但你试图插入二维。你的yi坐标都是一样的!

enter image description here

如果你想一维插值,就用许多维插值例程之一...(numpy.interp如果你只是想要线性插值,或者需要scipy.interp1d,如果你需要某种类型的样条线,还有其他几个选项......)。

完整的数据集是什么样的?

griddata默认使用delauney triangulation。无论何时,只要在输入点之间形成非常薄且接近零的区域三角形,该算法就会出现问题。

如果你真的面积超过一个区域在2D插值(见的问题在这里!)尝试另一种(最好1D)插值算法。如果你想帮助,请告诉我。

如果你真的想要一个“伪2D”插值,使用线性距离函数的scipy.interpolate.Rbf将是一个选择。请注意,(2D)结果可能不是您所期望的,因为您在y方向上绝对没有变化...

或者,如果您想要在y方向上平铺一维插值结果一切在y方向都是一样的。