如何用python-lasi读取文件的负数

2024-09-30 02:30:35 发布

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我有文件.las，我用python lasio读了它。但当我打印文件时，lasio读到一些负数为Nan

我所拥有的.las的内容是

> 1190.09200       0.00000       0.00000       0.00000       0.00000       0.00000       0.00000       0.00000       0.00000       0.00000 
   1190.24440    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000 
   1190.39680    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000 
   1190.54920    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000 
   1190.70160    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000 
   1190.85400    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000 
   1191.00640    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000 
   1191.15880    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000 
   1191.31120    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000 
   1191.46360    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000 
   1191.61600    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000 
   1191.76840    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000    -999.25000

这就是我目前所做的：

^{pr2}$

当我构建程序时，输出是这样的：

> 'DEPT': [ 1190.092   1190.2444  1190.3968 ...,  2429.4088  2429.5612  2429.7136],
 'KGAS': [  0.  nan  nan ...,  nan  nan  nan],
 'KINT': [  0.  nan  nan ...,  nan  nan  nan],
 'KOIL': [  0.  nan  nan ...,  nan  nan  nan],

-999.25000读作nan。为什么会这样？如何读取las文件中的负字符串？我写的这个程序很好，但不适用于负整数。。！！请帮帮我，我是Python新手。。。在


Tags： 文件字符串程序内容整数nanlas负数
1条回答
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1楼 · 发布于 2024-09-30 02:30:35

如果您升级到lasioversion 0.9.1，您应该能够防止使用null_subs=False关键字参数从-999.25替换到numpy.nan：

import lasio

data = lasio.read("./tests/well/O-CMS-001_KGAS-KINT-KOIL-KWTR-PIGN-VCL-   SUWI.las", null_subs=False)

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