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Does Java SE 8 have Pairs or Tuples?
..., false}
};
System.out.println(
IntStream.range(0, directed_acyclic_graph.length)
.parallel()
.mapToObj(i -> {
long count = IntStream.range(0, directed_acyclic_graph[i].length)
...
Have a reloadData for a UITableView animate when changing
... sections :) - [_tableView reloadSections:[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, sectionCount)] withRowAnimation:UITableViewRowAnimationFade];
– lobianco
Feb 4 '14 at 0:16
...
How do I create a variable number of variables?
...ly create those variable names, and may try something like this:
for i in range(10):
my_calculator.('button_%d' % i) = tkinter.Button(root, text=i)
They soon find that this does not work.
If the program requires arbitrary variable "names," a dictionary is the best choice, as explained in oth...
Histogram using gnuplot?
...ay to take a list of numbers and have gnuplot provide a histogram based on ranges and bin sizes the user provides?
9 Answer...
AWS MySQL RDS vs AWS DynamoDB [closed]
...
Really DynamoDB and MySQL are apples and oranges. DynamoDB is a NoSQL storage layer while MySQL is used for relational storage. You should pick what to use based on the actual needs of your application. In fact, some applications might be well served by using both....
Plot two histograms on single chart with matplotlib
...mport numpy
from matplotlib import pyplot
x = [random.gauss(3,1) for _ in range(400)]
y = [random.gauss(4,2) for _ in range(400)]
bins = numpy.linspace(-10, 10, 100)
pyplot.hist(x, bins, alpha=0.5, label='x')
pyplot.hist(y, bins, alpha=0.5, label='y')
pyplot.legend(loc='upper right')
pyplot.show(...
How to increase font size in a plot in R?
...e font size.
x <- rnorm(100)
cex doesn't change things
hist(x, xlim=range(x),
xlab= "Variable Lable", ylab="density", main="Title of plot", prob=TRUE)
hist(x, xlim=range(x),
xlab= "Variable Lable", ylab="density", main="Title of plot", prob=TRUE,
cex=1.5)
Add cex.lab=1.5,...
Detect & Record Audio in Python
...
To make this work in Python 3 just replace xrange with range.
– Ben Elgar
Feb 23 '15 at 22:52
1
...
How to get last items of a list in Python?
...
You can then pass the slice object to your sequence:
>>> list(range(100))[last_nine_slice]
[91, 92, 93, 94, 95, 96, 97, 98, 99]
islice
islice from the itertools module is another possibly performant way to get this. islice doesn't take negative arguments, so ideally your iterable has...
Why do people still use primitive types in Java?
...e cached by the JVM, so they return the same object for those. Beyond that range, though, they aren't cached, so a new object is created. To make things more complicated, the JLS demands that at least 256 flyweights be cached. JVM implementers may add more if they desire, meaning this could run on a...