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Convert Pandas column containing NaNs to dtype `int`
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@jsc123 you can use the object dtype. This comes with a small health warning but for the most part works well.
– Andy Hayden
May 19 '15 at 15:16
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How can I select from list of values in SQL Server
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no, no, I have a list of several hundreds of values, manually it would be torture
– Eedoh
Oct 14 '09 at 8:29
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subtract two times in python
...datetime(1,1,1,0,0,0) instead of date.today().
– Akavall
Mar 7 '14 at 18:54
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Why is subtracting these two times (in 1927) giving a strange result?
...ber 31st in Shanghai.
See this page for details of 1927 in Shanghai. Basically at midnight at the end of 1927, the clocks went back 5 minutes and 52 seconds. So "1927-12-31 23:54:08" actually happened twice, and it looks like Java is parsing it as the later possible instant for that local date/time...
Trim a string based on the string length
...ady shorter than 10.
Notes:
The above does real trimming. If you actually want to replace the last three (!) characters with dots if it truncates, then use Apache Commons StringUtils.abbreviate.
This may behave incorrectly1 if your String contains Unicode codepoints outside of the BMP; e.g. Em...
How can I use jQuery to make an input readonly?
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Note that readonly does not apply to all inputs. [HTML attribute: readonly](See developer.mozilla.org/en-US/docs/Web/HTML/Attributes/readonly). I attempted to create a select that would allow the options to be shown, but not an other option to be selected. This ...
Is there any way I can define a variable in LaTeX?
...e errors. To overcome this either use namespaced variables like my_var or fall back to \newcommand, \renewcommand commands instead.
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Getting Python error “from: can't read /var/mail/Bio”
...ot the script, it's the fact that your script is not executed by Python at all. If your script is stored in a file named script.py, you have to execute it as python script.py, otherwise the default shell will execute it and it will bail out at the from keyword. (Incidentally, from is the name of a c...
Format numbers to strings in Python
...}.html'.format(**d)
'http://xxx.yyy.zzz/user/42.html'
Like Python 2.6+, all Python 3 releases (so far) understand how to do both. I shamelessly ripped this stuff straight out of my hardcore Python intro book and the slides for the Intro+Intermediate Python courses I offer from time-to-time. :-)
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How to make a query with group_concat in sql server [duplicate]
...@Devart i mean the inner join give result like in image...so to combine in all duplicate m.maskid , m.maskname , m.schoolid , s.schoolname to one row we need group by
– Amit Singh
Jul 11 '13 at 11:07
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