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Find out how much memory is being used by an object in Python [duplicate]
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Rob♦
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answered Aug 30 '08 at 3:25
fserbfserb
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Container-fluid vs .container
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edited Dec 7 '14 at 22:51
Marius Schulz
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How to check for a valid URL in Java?
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edited Apr 8 '10 at 10:04
answered Feb 9 '10 at 16:44
Ten...
Android Fragment onClick button Method
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answered Jan 17 '14 at 17:48
RaghunandanRaghunandan
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node.js execute system command synchronously
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edited Dec 19 '17 at 20:47
answered Feb 8 '15 at 14:13
Be...
Calculate difference between two dates (number of days)?
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edited Sep 30 '14 at 13:39
Rohit
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answered Oct 22 '09 at 13:48
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“PKIX path building failed” and “unable to find valid certification path to requested target”
I'm trying to get tweets using twitter4j library for my java project. On my first run I got an error about certificate sun.security.validator.ValidatorException and sun.security.provider.certpath.SunCertPathBuilderException . Then I added twitter certificate by:
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How to print time in format: 2009‐08‐10 18:17:54.811
...best method to print out time in C in the format 2009‐08‐10
18:17:54.811 ?
7 Answers
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Reasons for using the set.seed function
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These two, however, are identical because I set the seed:
R> set.seed(42); sample(LETTERS, 5)
[1] "X" "Z" "G" "T" "O"
R> set.seed(42); sample(LETTERS, 5)
[1] "X" "Z" "G" "T" "O"
R>
There is vast literature on all that; Wikipedia is a good start. In essence, these RNGs are called Pseudo...
Generate a random number in the range 1 - 10
... min | max
-----------------+------------------
1.0000083274208 | 9.99999571684748
(1 row)
If you want integers, that are >= 1 and < 10, then it's simple:
select trunc(random() * 9 + 1)
And again, simple test:
# select min(i), max(i) from (
select trunc(random() * 9 +...