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How to sleep for five seconds in a batch file/cmd [duplicate]
...ds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.)
30 Answer...
ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
I use the following command:
15 Answers
15
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How to identify numpy types in python?
....g. numpy.ma.MaskedArray not a numpy enough type?
– panda-34
Mar 10 '16 at 13:02
If you want anything in numpy.* you j...
How can I create a two dimensional array in JavaScript?
I have been reading online and some places say it isn't possible, some say it is and then give an example and others refute the example, etc.
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What does “fragment” mean in ANTLR?
...is somewhat akin to an inline function: It makes the grammar more readable and easier to maintain.
A fragment will never be counted as a token, it only serves to simplify a grammar.
Consider:
NUMBER: DIGITS | OCTAL_DIGITS | HEX_DIGITS;
fragment DIGITS: '1'..'9' '0'..'9'*;
fragment OCTAL_DIGITS: '...
Total memory used by Python process?
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psutil is cross platform and can return the same values as the ps command line tool: pythonhosted.org/psutil/#psutil.Process.memory_info
– amos
Jul 3 '14 at 21:38
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How to append rows to an R data frame
...rs of the type you want for each column, insert values into those vectors, and then, at the end, create your data.frame.
Continuing with Julian's f3 (a preallocated data.frame) as the fastest option so far, defined as:
# pre-allocate space
f3 <- function(n){
df <- data.frame(x = numeric(n)...
What do the numbers in a version typically represent (i.e. v1.9.0.1)?
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I'm trying to understand this system. So here is a question: What if a new release has a feature and a bug fix, what should I increment?
– iTurki
Jul 16 '13 at 19:36
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input type=file show only button
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This answer is so simple and elegant and has worked for all browsers.
– Mike.C.Ford
Mar 19 '15 at 15:55
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How do you convert epoch time in C#?
...TimeOffset2 = DateTimeOffset.FromUnixTimeMilliseconds(epochMilliseconds);
And if you need the DateTime object instead of DateTimeOffset, then you can call the DateTime property
DateTime dateTime = dateTimeOffset .DateTime;
...