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Fragment or Support Fragment?
...ncluded in your application. Each of these libraries supports
a specific range of Android platform versions and set of features.
This guide explains the important features and version support
provided by the Support Libraries to help you decide which of them you
should include in your app...
Scala: What is the difference between Traversable and Iterable traits in Scala collections?
...oreach, to traverse all elements at once without stopping.
Something like Range(1, 10) needs to have only 2 integers as state as a Traversable. But Range(1, 10) as an Iterable gives you an iterator which needs to use 3 integers for state, one of which is an index.
Considering that Traversable also...
Algorithm to return all combinations of k elements from n
..., with minor changes – I used the index of the sets rather than a number range to represent the set, so we are always working from 0...n.
Note:
Since combinations are unordered, {1,3,2} = {1,2,3} --we order them to be lexicographical.
This method has an implicit 0 to start the set for the first ...
Adding a regression line on a ggplot
... regression line:
fit: your fit of a logistic regression curve
#Create a range of doses:
mm <- data.frame(DOSE = seq(0, max(data$DOSE), length.out = 100))
#Create a new data frame for ggplot using predict and your range of new
#doses:
fit.ggplot=data.frame(y=predict(fit, newdata=mm),x=mm$DOSE)...
Forward declaring an enum in C++
...m type will be determined by the compiler to be any type that will fit the range of values you have for your enum.
What does that mean?
It means that your enum's underlying type cannot be fully determined until you have all of the values of the enum defined. Which mans you cannot separate the d...
Appropriate datatype for holding percent values?
What is the best datatype for holding percent values ranging from 0.00% to 100.00%?
5 Answers
...
Can you add new statements to Python's syntax?
...g step. eg.
# coding: mylang
myprint "this gets logged to file"
for i in range(10):
myprint "so does this : ", i, "times"
myprint ("works fine" "with arbitrary" + " syntax"
"and line continuations")
Caveats:
There are problems to the preprocessor approach, as you'll probably be familiar ...
What is a plain English explanation of “Big O” notation?
...put is at least that long (e.g. printing out all permutations (ways to rearrange) a set of N playing cards is factorial: O(N!)).
This motivates the use of data structures: a data structure requires reading the data only once (usually O(N) time), plus some arbitrary amount of preprocessing (e.g. O(N...
Need for predictable random generator
...
On that note... would teh range of random numbers affect the distribution... e.g. choosing a Random r = new Random(); r.Next(1,5) vs. r.Next(1, 1000000) % 200000
– Eoin Campbell
May 26 '09 at 11:39
...
Saving utf-8 texts in json.dumps as UTF8, not as \u escape sequence
...ascii' codec can't encode character u'\xe7' in position 25: ordinal not in range(128)
It was crashing on the .decode('utf8') part of line 3. I fixed the problem by making the program much simpler by avoiding that step as well as the special casing of ascii:
with io.open('filename', 'w', encodin...