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Drop columns whose name contains a specific string from pandas DataFrame
... 2.0 NaN NaN 1.0
1 20.0 NaN 10.0 5.0 NaN
Now filter
df.filter(like='result',axis=1)
Get..
result1 result34
0 2.0 NaN
1 NaN 10.0
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What is the difference between varchar and varchar2 in Oracle?
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As for now, they are synonyms.
VARCHAR is reserved by Oracle to support distinction between NULL and empty string in future, as ANSI standard prescribes.
VARCHAR2 does not distinguish between a NULL and empty string, and never wil...
sh: 0: getcwd() failed: No such file or directory on cited drive
... can happen with symlinks sometimes. If you experience this issue and you know you are in an existing directory, but your symlink may have changed, you can use this command:
cd $(pwd)
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Create two blank lines in Markdown
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I only know the options below. It would be great to take a list of all of them and comment them differences
# RAW
## Creates 2 Lines that CAN be selected as text
## -------------------------------------------------
### The non-br...
Hidden Features of ASP.NET [closed]
...be useful in fringe scenarios, but for that very reason most people don't know them. I am asking for features that are not typically taught by the text books.
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Is it possible to cherry-pick a commit from another git repository?
...ith a git repository that needs a commit from another git repository that knows nothing of the first.
11 Answers
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Detect whether there is an Internet connection available on Android [duplicate]
...e, but does not check that device is connected to the internet. To really know about active internet connection, you should to use HttpURLConnection to some host, ping some host (e.g. google.com) or try to use InetAddress.getByName(hostName).isReachable(timeOut)
– Dimon
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Build android release apk on Phonegap 3.x CLI
...as never documented in any part of the phone gap site and frankly speaking now I kinda hate phonegap :( it was supposed to make the things easier but everything was just complicated :(
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How does View Controller Containment work in iOS 5?
... Because that's what the docs say. Apple obviously feel we don't need to know.
– user577537
Oct 15 '12 at 14:55
7
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presentModalViewController:Animated is deprecated in ios6
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so now we have presentViewController and do not specify that the view controller should be modal?
– Septiadi Agus
Jul 15 '13 at 3:37
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