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How to determine whether a Pandas Column contains a particular value
...n a Pandas column that has a particular value. I tried to do this with if m>x m> in df['id'] . I thought this was working, em>x m>cept when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data frame only containing entries matching the missing ...
psycopg2: insert multiple rows with one query
...ltiple rows with one query (number of rows is not constant), so I need to em>x m>ecute query like this one:
15 Answers
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What is the most efficient string concatenation method in python?
...is worth remembering also that this is an old article and it predates the em>x m>istence of things like ''.join (although I guess string.joinfields is more-or-less the same)
On the strength of that, the array module may be fastest if you can shoehorn your problem into it. But ''.join is probably fast e...
Format / Suppress Scientific Notation from Python Pandas Aggregation Results
... converter like so.
In [25]: pd.set_option('display.float_format', lambda m>x m>: '%.3f' % m>x m>)
In [28]: Series(np.random.randn(3))*1000000000
Out[28]:
0 -757322420.605
1 -1436160588.997
2 -1235116117.064
dtype: float64
I'm not sure if that's the preferred way to do this, but it works.
Convert...
Set icon for Android application
...lude a 48dp sized icon:
drawable-ldpi (120 dpi, Low density screen) - 36pm>x m> m>x m> 36pm>x m>
drawable-mdpi (160 dpi, Medium density screen) - 48pm>x m> m>x m> 48pm>x m>
drawable-hdpi (240 dpi, High density screen) - 72pm>x m> m>x m> 72pm>x m>
drawable-m>x m>hdpi (320 dpi, Em>x m>tra-high density screen) - 96pm>x m> m>x m> 96pm>x m>
drawable-m>x m>m>x m>hdpi (480 dpi, Em>x m>tr...
How do I sort strings alphabetically while accounting for value when a string is numeric?
..., "lauren", "007", "90", "101"};
foreach (var thing in things.OrderBy(m>x m> => m>x m>, new SemiNumericComparer()))
{
Console.WriteLine(thing);
}
}
public class SemiNumericComparer: IComparer<string>
{
/// <summary>
/// Method to determine if a string is a num...
Do Swift-based applications work on OS m>X m> 10.9/iOS 7 and lower?
Will Swift-based applications work on OS m>X m> 10.9 (Mavericks)/iOS 7 and lower?
19 Answers
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Does static constem>x m>pr variable inside a function make sense?
... a large array), does it make sense to declare it both static and constem>x m>pr ? constem>x m>pr guarantees that the array is created at compile time, so would the static be useless?
...
Reset C int array to zero : the fastest way?
...all-bits-zero is a valid representation of 0 for all integer types in all em>x m>isting C and C++ implementations, which is why the committee was able to add that requirement. (There is no similar guarantee for floating-point or pointer types.)
– Keith Thompson
Jun ...
Print a string as hem>x m> bytes?
...
Your can transform your string to a int generator, apply hem>x m> formatting for each element and intercalate with separator:
>>> s = "Hello world !!"
>>> ":".join("{:02m>x m>}".format(ord(c)) for c in s)
'48:65:6c:6c:6f:20:77:6f:72:6c:64:20:21:21
...