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Generate random numbers with a given (numerical) distribution
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scipy.stats.rv_discrete might be what you want. You can supply your probabilities via the values parameter. You can then use the rvs() method of the distribution object to generate random numbers.
As pointed out by Eugene Pakhomov in th...
Export and Import all MySQL databases at one time
...zgür from the mysqldump man page: "mysqldump does not dump the INFORMATION_SCHEMA or performance_schema database by default. To dump either of these, name it explicitly on the command line and also use the --skip-lock-tables option."
– mmalone
Sep 23 '15 at 23...
what is the difference between 'transform' and 'fit_transform' in sklearn
In the sklearn-python toolbox, there are two functions transform and fit_transform about sklearn.decomposition.RandomizedPCA . The description of two functions are as follows
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Examples of Algorithms which has O(1), O(n log n) and O(log n) complexities
...'ve been wondering what common algorithm uses n!?
– Y_Y
Jan 30 '14 at 22:00
Accessing a HashMap value as well as more ...
How to filter None's out of List[Option]?
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someList.filter(_.isDefined) if you want to keep the result type as List[Option[A]]
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Scatterplot with too many points
...;- data.frame(x = rnorm(5000),y=rnorm(5000))
ggplot(df,aes(x=x,y=y)) + geom_point(alpha = 0.3)
Another convenient way to deal with this is (and probably more appropriate for the number of points you have) is hexagonal binning:
ggplot(df,aes(x=x,y=y)) + stat_binhex()
And there is also regula...
Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin
...URLSession sharedSession] dataTaskWithURL:url completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
if (data) {
UIImage *image = [UIImage imageWithData:data];
if (image) {
dispatch_async(dispatch_...
How do I integrate Ajax with Django applications?
... return HttpResponse('Hello World!')
def home(request):
return render_to_response('index.html', {'variable': 'world'})
index.html:
<h1>Hello {{ variable }}, welcome to my awesome site</h1>
urls.py:
url(r'^hello/', 'myapp.views.hello'),
url(r'^home/', 'myapp.views.home'),
Th...
Save bitmap to location
...my image in canvas it is very small. any reason?
– AZ_
Mar 18 '11 at 13:24
3
@Aizaz This will not...
What is the difference between .text, .value, and .value2?
...ome sort of innate type that you will have to act upon.
dynamic x = ws.get_Range("A1").Value2;
object y = ws.get_Range("A1").Value2;
var z = ws.get_Range("A1").Value2;
double d = ws.get_Range("A1").Value2; // Value of a serial is always a double
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