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Extracting specific columns from a data frame
...m FirkeSam Firke
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Which is a better way to check if an array has more than one element?
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answered Apr 5 '12 at 8:14
ChibuzoChibuzo
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throw Error('msg') vs throw new Error('msg')
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answered Nov 8 '12 at 17:43
pimvdbpimvdb
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How Do I Document Packages in Java?
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As of 1.5 you can define a package-info.java file and provide a standard javadoc style comment f...
figure of imshow() is too small
... don't need an equal aspect you can set aspect to auto
imshow(random.rand(8, 90), interpolation='nearest', aspect='auto')
which gives the following figure
If you want an equal aspect ratio you have to adapt your figsize according to the aspect
fig, ax = subplots(figsize=(18, 2))
ax.imshow(ran...
PHP regular expressions: No ending delimiter '^' found in
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edited Jan 8 '11 at 17:09
answered Jan 8 '11 at 17:04
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MySQL's now() +1 day
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answered Oct 8 '10 at 3:34
Mark ByersMark Byers
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How to calculate age (in years) based on Date of Birth and getDate()
...etime
SET @dob='1992-01-09 00:00:00'
SELECT DATEDIFF(hour,@dob,GETDATE())/8766.0 AS AgeYearsDecimal
,CONVERT(int,ROUND(DATEDIFF(hour,@dob,GETDATE())/8766.0,0)) AS AgeYearsIntRound
,DATEDIFF(hour,@dob,GETDATE())/8766 AS AgeYearsIntTrunc
OUTPUT:
AgeYearsDecimal ...
In-place type conversion of a NumPy array
...:] = x
print(y)
yields
array([ 0., 1., 2., 3., 4., 5., 6., 7., 8., 9.], dtype=float32)
To show the conversion was in-place, note that copying from x to y altered x:
print(x)
prints
array([ 0, 1065353216, 1073741824, 1077936128, 1082130432,
1084227584, 1086324736, 10...
What is the difference between an int and a long in C++?
... 4 bytes
Linux IA-32 4 bytes
Linux Intel 64 8 bytes
Linux IA-64 8 bytes
Mac OS X IA-32 4 bytes
Mac OS X Intel 64 8 bytes
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