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IllegalMonitorStateException on wait() call
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Andreas Fester
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answered Oct 8 '09 at 11:11
recclesreccles
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How to map and remove nil values in Ruby
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8 Answers
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Active
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Python pandas Filtering out nan from a data selection of a column of strings
...re at least two non-NaN.
Then you could then drop where name is NaN:
In [87]:
nms
Out[87]:
movie name rating
0 thg John 3
1 thg NaN 4
3 mol Graham NaN
4 lob NaN NaN
5 lob NaN NaN
[5 rows x 3 columns]
In [89]:
nms = nms.dropna(thresh=2)
In ...
How do I create a round cornered UILabel on the iPhone?
... means you can get rounded corners in one line:
view.layer.cornerRadius = 8;
You will need to #import <QuartzCore/QuartzCore.h> and link to the QuartzCore framework to get access to CALayer's headers and properties.
Before iOS 3.0
One way to do it, which I used recently, is to create a UI...
What do column flags mean in MySQL Workbench?
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348
PK - Primary Key
NN - Not Null
BIN - Binary (stores data as binary strings. There is no cha...
Extract every nth element of a vector
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answered Mar 8 '11 at 20:03
niconico
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CSS display: inline vs inline-block [duplicate]
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answered Feb 8 '12 at 8:30
OldskoolOldskool
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numpy matrix vector multiplication [duplicate]
...>> b = np.array([1, 2, 3])
>>> print a.dot(b)
array([16, 6, 8])
This occurs because numpy arrays are not matrices, and the standard operations *, +, -, / work element-wise on arrays. Instead, you could try using numpy.matrix, and * will be treated like matrix multiplication.
Ot...
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