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Convert Set to List without creating new List
...t);
EDIT: as respond to the edit of the question.
It is easy to see that if you want to have a Map with Lists as values, in order to have k different values, you need to create k different lists.
Thus: You cannot avoid creating these lists at all, the lists will have to be created.
Possible work ...
How to generate a number of most distinctive colors in R?
...ing a categorical dataset and want to use distinctive colors to represent different categories. Given a number n , how can I get n number of MOST distinctive colors in R? Thanks.
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Objective-C pass block as parameter
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Typedefs not only make the code easier to write, but significantly easier to read since block/function pointer syntax isn't the cleanest.
– pyj
Oct 18 '14 at 15:12
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How can I access getSupportFragmentManager() in a fragment?
...:
FragmentManager fragManager = myContext.getSupportFragmentManager(); //If using fragments from support v4
or
FragmentManager fragManager = myContext.getFragmentManager();
You are done.
share
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or (HTML5)
...<menu>'s type attribute is omitted or set to "toolbar". See the specification for the <li> element and the <menu> element.
– tomekwi
May 27 '15 at 7:31
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What is the difference between ArrayList.clear() and ArrayList.removeAll()?
...ection):
public boolean removeAll(Collection<?> c) {
boolean modified = false;
Iterator<?> e = iterator();
while (e.hasNext()) {
if (c.contains(e.next())) {
e.remove();
modified = true;
}
}
return modified;
}
clear() is much ...
ImportError: DLL load failed: %1 is not a valid Win32 application. But the DLL's are there
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Please check if the python version you are using is also 64 bit. If not then that could be the issue. You would be using a 32 bit python version and would have installed a 64 bit binaries for the OPENCV library.
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Xcode variables
...o use in some situations, such as a run script build phase. I am wondering if it's possible to get the build type (i.e., Release or Debug ). Any ideas?
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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
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Please see my answer if you want to get only one count column per group.
– Pedro M Duarte
Sep 26 '15 at 19:43
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Convert Go map to json
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If you had caught the error, you would have seen this:
jsonString, err := json.Marshal(datas)
fmt.Println(err)
// [] json: unsupported type: map[int]main.Foo
The thing is you cannot use integers as keys in JSON; it is for...