大约有 800 项符合查询结果（耗时：0.0165秒） [XML]
How to drop rows of Pandas DataFrame whose value in a certain column is NaN
...]:
STK_ID RPT_Date STK_ID.1 EPS cash
2 600016 20111231 600016 4.3 NaN
4 601939 20111231 601939 2.5 NaN
In [334]: df[~df.EPS.isnull()]
Out[334]:
STK_ID RPT_Date STK_ID.1 EPS cash
2 600016 20111231 600016 4.3 NaN
4 601939 20111231 601939 2.5 NaN
In [34...
send mail from linux terminal in one line [closed]
...
more light-weight: packages nullmailer plus bsd-mailx. Sufficient for most work-stations :) And as nullmailer includes a sendmail interface, you might even skip the bsd-mailx package and use Hengjie's approach.
– Izzy
Mar 16 '17 a...
iPad keyboard will not dismiss if modal ViewController presentation style is UIModalPresentationForm
...
Yep, since 4.3 this seems to be the case. Will update the question. Thanks!
– Kalle
Mar 31 '11 at 19:03
2
...
Linux delete file with size 0 [duplicate]
...
This works for plain BSD so it should be universally compatible with all flavors. Below.e.g in pwd ( . )
find . -size 0 | xargs rm
share
|
...
What is the difference/usage of homebrew, macports or other package installation tools? [closed]
... remember correctly).
macports is an osx version of the port utility from BSD (as osx is derived from BSD, this was a natural choice). For anyone familiar with any of the BSD distributions, macports will feel right at home.
One major difference between homebrew and macports; and the reason I prefe...
Does free(ptr) where ptr is NULL corrupt memory?
...
@Tomas 3BSD (winehq.org/pipermail/wine-patches/2006-October/031544.html) and PalmOS for two (2nd hand for both).
– Douglas Leeder
Mar 11 '10 at 14:04
...
Textarea that can do syntax highlighting on the fly?
... Demo as FileEditor who is a Yii Extension ― (Apache Software License, BSD, LGPL)
Here is EditArea, a free javascript editor for source code. It allow to write well formated source code with line numerotation, tab support, search & replace (with regexp) and live syntax highlighting (custom...
`date` command on OS X doesn't have ISO 8601 `-I` option?
...
A short alternative that works on both GNU and BSD date is:
date -u +%FT%T%z
share
|
improve this answer
|
follow
|
...
C++并发编程（中文版） - 文档下载 - 清泛网 - 专注C/C++及内核技术
....2.4 为future保存异常… 73
4.2.5 来自多个线程的等待… 75
4.3 在时间限制内等待… 77
4.3.1 时钟… 77
4.3.2 持续时间… 78
4.3.3 时间点… 79
4.3.4 接受超时的函数… 80
4.4 使用操作同步简化代码… 82
4.4.1 带有future的函数式编程… 82
...
Delete empty lines using sed
...
Whoah. Is even running with BSD's "minimized" version of awk (version 20121220 (FreeBSD). Thanks :-)
– Bernie Reiter
Feb 25 '17 at 0:36
...