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How to select rows from a DataFrame based on column values?
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To select rows whose column value equals a scalar, some_value, use ==:
df.loc[df['column_name'] == some_value]
To select rows whose column value is in an iterable, some_values, use isin:
df.loc[df['column_name'].isin(some_values)]
Combine multiple conditions with &:
d...
How to get IntPtr from byte[] in C#
... the Fixed keyword instead of using the GC
– goodguys_activate
Dec 17 '12 at 21:59
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One-liner to recursively list directories in Ruby?
... To include dotfiles in the match results, use the File::FNM_DOTMATCH flag.
– x-yuri
Jul 1 '14 at 18:06
2
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How to properly URL encode a string in PHP?
...owever, you shouldn't need to use urldecode() on variables that appear in $_POST and $_GET.
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How to filter a dictionary according to an arbitrary condition function?
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points_small = dict(filter(lambda (a,(b,c)): b<5 and c < 5, points.items()))
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Android Use Done button on Keyboard to click button
... if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) || (actionId == EditorInfo.IME_ACTION_DONE)) {
Log.i(TAG,"Enter pressed");
}
return false;
}
});
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JavaScript global event mechanism
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With the addition of msg, file_loc, line_no params this should do it for me. Thanks!
– Bob
Jun 4 '09 at 17:16
1
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Having issue with multiple controllers of the same name in my project
... routes.IgnoreRoute("{resource}.axd/{*pathInfo}")
routes.MapRoute( _
name:="Default", _
url:="{controller}/{action}/{id}", _
defaults:=New With {.controller = "Home", .action = "Index", .id = UrlParameter.Optional} _
, namespaces:={"MvcAreas"}) ...
UnicodeEncodeError: 'latin-1' codec can't encode character
...following commands right after
you've etablished the connection:
db.set_character_set('utf8')
dbc.execute('SET NAMES utf8;')
dbc.execute('SET CHARACTER SET utf8;')
dbc.execute('SET character_set_connection=utf8;')
"db" is the result of MySQLdb.connect(), and "dbc" is the result of
db.curs...
How do you convert a DataTable into a generic list?
...n
emp = (from DataRow row in dt.Rows
select new Employee
{
_FirstName = row["FirstName"].ToString(),
_LastName = row["Last_Name"].ToString()
}).ToList();
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