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Asynchronously wait for Task to complete with timeout
...is?
const int x = 3000;
const int y = 1000;
static void Main(string[] args)
{
// Your scheduler
TaskScheduler scheduler = TaskScheduler.Default;
Task nonblockingTask = new Task(() =>
{
CancellationTokenSource source = new Canc...
Clearing localStorage in javascript?
...unctions in a similar fashion to objects in that the keys are converted to strings. For example, using undefined as a key like this: localStorage.setItem(undefined, 'example Txt!'), will actuall store it under the key called 'undefined' as you can see when you run the following code. console.log(loc...
NumPy or Pandas: Keeping array type as integer while having a NaN value
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If performance is not the main issue, you can store strings instead.
df.col = df.col.dropna().apply(lambda x: str(int(x)) )
Then you can mix then with NaN as much as you want. If you really want to have integers, depending on your application, you can use -1, or 0, or 12345...
Convert pandas dataframe to NumPy array
...ot what you want from the get go. In my case, having copied your DF from a string, the index type is string (represented by an object dtype in pandas):
In [102]: df
Out[102]:
label A B C
ID
1 NaN 0.2 NaN
2 NaN NaN 0.5
3 NaN 0.2 0.5
4 0.1 0.2 N...
Xcode debugger doesn't print objects and shows nil, when they aren't
...int suddenly the Xcode debugger printed out some object types especially NSStrings as (null) although they were initialized with a value. Printed out via
NSLog(@"String value: %@", myString);
the correct value for the object was shown.
Confusing!
Solving the problem was rather easy: I just shut...
How do I read CSV data into a record array in NumPy?
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What if you want something of different types? Like strings and ints?
– CGTheLegend
Mar 21 '17 at 2:20
12
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What are the mathematical/computational principles behind this game?
My kids have this fun game called Spot It! The game constraints (as best I can describe) are:
9 Answers
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How do I copy a file in Python?
...copied with this function.
With copy, src and dst are path names given as strings.
If you use os.path operations, use copy rather than copyfile. copyfile will only accept strings.
share
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improv...
In C#, What is a monad?
... static Nullable<int> h(){ return 9; }
static void Main(string[] args)
{
Nullable<int> z =
f().Bind( fval =>
g().Bind( gval =>
h().Bind( hval =>
...
Deleting an object in java?
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If you want help an object go away, set its reference to null.
String x = "sadfasdfasd";
// do stuff
x = null;
Setting reference to null will make it more likely that the object will be garbage collected, as long as there are no other references to the object.
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