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How to make good reproducible pandas examples
...),
# a date range and set of random dates
'f':pd.date_range('1/1/2011', periods=6, freq='D'),
'g':np.random.choice( pd.date_range('1/1/2011', periods=365,
freq='D'), 6, replace=False)
})
This produces:
a b c d e f ...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...ition
Introduction
MIT App Inventor is a block-based event-driven web platform that allows everyone, especially novices, to start programming and building fully functional apps for Android devices. Instead of text-based programming, apps are programmed by Blockly, a visual block-based programming f...
Python ValueError: too many values to unpack [duplicate]
... Your tip helped me to solve my problem, when updating a dictionary of the form { 'longkey_n' : [ 'value_1', 'value_n' ] } :-D. My program also complained about too many values...
– Semo
May 18 '17 at 10:32
...
Make error: missing separator
... outside of any target.
UPD. To run command globally one must be properly formed. For example command
ln -sf ../../user/curl/$SRC_NAME ./$SRC_NAME
would become:
$(shell ln -sf ../../user/curl/$(SRC_NAME) ./$(SRC_NAME))
...
How to do two-way filtering in AngularJS?
... a convenient way to apply, for example, culture-specific currency or date formatting of a model's properties. It is also nice to have computed properties on the scope. The problem is that neither of these features work with two-way databinding scenarios - only one-way databinding from the scope to ...
Difference between timestamps with/without time zone in PostgreSQL
...of those factors:
foo=> SET TIMEZONE TO 'Japan';
SET
foo=> SELECT '2011-01-01 00:00:00'::TIMESTAMP;
timestamp
---------------------
2011-01-01 00:00:00
(1 row)
foo=> SELECT '2011-01-01 00:00:00'::TIMESTAMP WITH TIME ZONE;
timestamptz
------------------------
201...
OAuth 2.0: Benefits and use cases — why?
...ss token as part of the request (as a query argument, HTTP header, or POST form data).
If the content service is accessed only over SSL, we're done. If it's available via plain HTTP, we'd like to protect that permanent access token in some way. Anyone sniffing the connection would be able to get ac...
generate days from date range
...t 7 union all select 8 union all select 9) as d
) a
where a.Date between '2010-01-20' and '2010-01-24'
Output:
Date
----------
2010-01-24
2010-01-23
2010-01-22
2010-01-21
2010-01-20
Notes on Performance
Testing it out here, the performance is surprisingly good: the above query takes 0.0009 se...
MySQL “between” clause not inclusive?
... truncate it out:
select * from person
where CAST(dob AS DATE) between '2011-01-01' and '2011-01-31'
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Code Golf: Lasers
...dish s///e with side effects. In the golfed code, the tr is written in the form y''' which allows me to skip backslashing one backslash.
die "true\n" if />x/; die "false\n" if />#/;
Terminate with the right message if we hit the target or a wall.
$s = $1 if s/>(.)/$s$d{$1}/;
If there'...