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What are the differences between git remote prune, git prune, git fetch --prune, etc
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I know it seems obvious, but git prune looks not only for branches and tags, but all other refs as well.
– user743382
Nov 20 '13 at 21:08
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Change column type from string to float in Pandas
...arly useful when you want to convert your entire DataFrame, but don't not know which of our columns can be converted reliably to a numeric type. In that case just write:
df.apply(pd.to_numeric, errors='ignore')
The function will be applied to each column of the DataFrame. Columns that can be conver...
rsync: difference between --size-only and --ignore-times
...a big cp -r A B yesterday, but you forgot to preserve the time stamps, and now you want to do the operation in reverse rsync B A. All those files you cp'ed have yesterday's time stamp, even though they weren't really modified yesterday, and rsync will by default end up copying all those files, and u...
How to return result of a SELECT inside a function in PostgreSQL?
I have this function in PostgreSQL, but I don't know how to return the result of the query:
2 Answers
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SQL query to find record with ID not in another table
... 20 datas, It works, but when i have 20000 datas, it not work, Iam confuse now.
– Frank
Nov 2 '16 at 3:25
1
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How to use git bisect?
...ment history:
... --- 0 --- 1 --- 2 --- 3 --- 4* --- 5 --- current
You know that your program is not working properly at the current revision, and that it was working at the revision 0. So the regression was likely introduced in one of the commits 1, 2, 3, 4, 5, current.
You could try to check o...
在 App Inventor 2 中使用图像 · App Inventor 2 中文网
...makes Android application development more complicated than before because now the application developer has to design their application to deal with different screen sizes and densities. The approach taken by Google is to design several UI versions for your application, complete with each version...
What's wrong with Java Date & Time API? [closed]
...lus 2 hours around the time of the
second world war. While this bug is
now fixed, if at some point in the
future a country chose to introduce a
daylight savings time gain of plus
three hours in summer, then the
Calendar class would again be broken.
The current Java SE API also suffe...
How do I catch a numpy warning like it's an exception (not just for testing)?
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To add a little to @Bakuriu's answer:
If you already know where the warning is likely to occur then it's often cleaner to use the numpy.errstate context manager, rather than numpy.seterr which treats all subsequent warnings of the same type the same regardless of where they occ...
Where can I learn how to write C code to speed up slow R functions? [closed]
...t's the best resource for learning how to write C code for use with R? I know about the system and foreign language interfaces section of R extensions, but I find it pretty hard going. What are good resources (both online and offline) for writing C code for use with R?
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