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Determining the last changelist synced to in Perforce
...to which the sync occured strictly deleted files from the workspace, the next-highest changelist will be reported (unless it, too, strictly deleted files).
If you must sync first and record later, Perforce recommends running the following command to determine if you've been bit by the above gotcha...
Is there a function to make a copy of a PHP array to another?
...confused by intricacies such as ArrayObject, which is an object that acts exactly like an array. Being an object however, it has reference semantics.
Edit: @AndrewLarsson raises a point in the comments below. PHP has a special feature called "references". They are somewhat similar to pointers in la...
Static methods in Python?
...corator
class MyClass(object):
@staticmethod
def the_static_method(x):
print(x)
MyClass.the_static_method(2) # outputs 2
Note that some code might use the old method of defining a static method, using staticmethod as a function rather than a decorator. This should only be used if ...
Cluster analysis in R: determine the optimal number of clusters
...he Q are... unclear to me):
n = 100
g = 6
set.seed(g)
d <- data.frame(x = unlist(lapply(1:g, function(i) rnorm(n/g, runif(1)*i^2))),
y = unlist(lapply(1:g, function(i) rnorm(n/g, runif(1)*i^2))))
plot(d)
One. Look for a bend or elbow in the sum of squared error (SSE) scree ...
Generic List - moving an item within the list
So I have a generic list, and an oldIndex and a newIndex value.
10 Answers
10
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How to find the largest file in a directory and its subdirectories?
We're just starting a UNIX class and are learning a variety of Bash commands. Our assignment involves performing various commands on a directory that has a number of folders under it as well.
...
In jQuery how can I set “top,left” properties of an element with position values relative to the par
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$("#mydiv").css({top: '200px', left: '200px', position:'absolute'}); <-- good $("#mydiv").css({top: '200', left: '200', position:'absolute'}); <-- bad. Apparently, if position values are strings, you must include the units, or it'll have no effe...
Recursively remove files
..._ and .DS_Store files that one gets after moving files from a Mac to A Linux Server?
12 Answers
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Most lightweight way to create a random string and a random hexadecimal number
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I got a faster one for the hex output. Using the same t1 and t2 as above:
>>> t1 = timeit.Timer("''.join(random.choice('0123456789abcdef') for n in xrange(30))", "import random")
>>> t2 = timeit.Timer("binascii.b2a_hex(os.urandom(15))...
What are rvalues, lvalues, xvalues, glvalues, and prvalues?
In C++03, an expression is either an rvalue or an lvalue .
11 Answers
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