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How to perform element-wise multiplication of two lists?
...e you're already using numpy, it makes sense to store your data in a numpy array rather than a list. Once you do this, you get things like element-wise products for free:
In [1]: import numpy as np
In [2]: a = np.array([1,2,3,4])
In [3]: b = np.array([2,3,4,5])
In [4]: a * b
Out[4]: array([ 2, ...
Converting Stream to String and back…what are we missing?
...e.
string test = "Testing 1-2-3";
// convert string to stream
byte[] byteArray = Encoding.ASCII.GetBytes(test);
MemoryStream stream = new MemoryStream(byteArray);
// convert stream to string
StreamReader reader = new StreamReader(stream);
string text = reader.ReadToEnd();
If stream has already ...
How to compute the similarity between two text documents?
... elements in Compressed Sparse Row format>
You can convert the sparse array to a NumPy array via .toarray() or .A:
>>> pairwise_similarity.toarray() ...
How to efficiently count the number of keys/properties of an object in JavaScript?
...ld) This not only iterates through the object but also creates a whole new array with all its keys, so it completely fails at answering the question.
– GetFree
Jun 22 '12 at 14:28
...
How can I read a function's signature including default argument values?
... and if yes what is the default value for the argument
:param args: array of arguments, eg: ['first_arg', 'second_arg', 'third_arg']
:param defaults: array of default values, eg: (42, 'something')
:param arg_index: index of the argument in the argument array for which,
this functi...
How to pass parameters using ui-sref in ui-router to controller
...lue',
squash: false,
},
// this parameter is now array
// we can pass more items, and expect them as []
bar : {
array : true,
},
// this param is not part of url
// it could be passed with $state.go or ui-sref
hidd...
Set Locale programmatically
... set.add(all.get(i)); } Locale[] locales = set.toArray(new Locale[0]); configuration.setLocales(new LocaleList(locales)); inside @TargetApi(Build.VERSION_CODES.N) updateResourcesLocale()
– Vojtech Pohl
Jan 29 at 22:35
...
How to pass arguments into a Rake task with environment in Rails? [duplicate]
...e "hello[World]"
For multiple arguments, just add their keywords in the array of the task declaration (task :hello, [:a,:b,:c]...), and pass them comma separated:
rake "hello[Earth,Mars,Sun,Pluto]"
Note: the number of arguments is not checked, so the odd planet is left out:)
...
How to hide one item in an Android Spinner
...item I think that you can implement your own adapter and set the index (or array list of indexes) that you want to hide.
public class CustomAdapter extends ArrayAdapter<String> {
private int hidingItemIndex;
public CustomAdapter(Context context, int textViewResourceId, String[] ob...
How to save picture to iPhone photo library?
...
Just pass the images from an array to it like so
-(void) saveMePlease {
//Loop through the array here
for (int i=0:i<[arrayOfPhotos count]:i++){
NSString *file = [arrayOfPhotos objectAtIndex:i];
NSString *path = [get the path of th...