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How can I filter lines on load in Pandas read_csv function?
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There isn't an option to filter the rows before the CSV file is loaded into a pandas object.
You can either load the file and then filter using df[df['field'] > constant], or if you have a very large file and you are worried about memory running out, then use an ...
How do I interpret precision and scale of a number in a database?
...mal places
ie 123456.789 has a scale of 3
Thus the maximum allowed value for decimal(5,2) is 999.99
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Spring Expression Language (SpEL) with @Value: dollar vs. hash ($ vs. #)
...rder to successfully access property values using the SpEL syntax, use the format "#{'${property}'}"
– Brice Roncace
Apr 6 '16 at 20:23
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Determine command line working directory when running node bin script
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@reergymerej You'll probably want to store cwd first before executing chdir() (e.g., var originalCwd = process.cwd(); then execute your process.chdir(), and you can return to the original afterwards).
– Swivel
Aug 16 '16 at 21:11
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Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
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These events are called in the following order:
beforeTextChanged(CharSequence s, int start, int count, int after).
This means that the characters are about to be replaced with some new text. The text is uneditable.
Use: when you need to take a look at the old text which is ...
Filter git diff by type of change
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You are looking for --diff-filter=M to show only files *M*odified between the two branches.
From man git-diff
--diff-filter=[ACDMRTUXB*]
Select only files that are
A Added
C Copied
D Deleted
M Modified
R Renamed
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Choose Git merge strategy for specific files (“ours”, “mine”, “theirs”)
...at have merge conflicts. How can I accept "their" changes or "my" changes for specific files?
3 Answers
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Setting log level of message at runtime in slf4j
...lity is missing is that it is next to impossible to construct a Level type for slf4j that can be efficiently mapped to the Level (or equivalent) type used in all of the possible logging implementations behind the facade. Alternatively, the designers decided that your use-case is too unusual to just...
Converting a column within pandas dataframe from int to string
...ame: A, dtype: object
In [20]: df['A'].apply(str)[0]
Out[20]: '0'
Don't forget to assign the result back:
df['A'] = df['A'].apply(str)
Convert the whole frame
In [21]: df.applymap(str)
Out[21]:
A B
0 0 1
1 2 3
2 4 5
3 6 7
4 8 9
In [22]: df.applymap(str).iloc[0,0]
Out[22]: '0...
How to make unicode string with python3
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this is exactly what we need for '\x80abc'.decode("utf-8", "strict") in Python 2, thanks
– workplaylifecycle
Jan 2 '17 at 3:31
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