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How can I save an image with PIL?
...verting the results of a Fourier transform to a RGB colorspace will give a meaningless image. Just because it no longer raises an exception, it doesn't mean the result is correct.
– mmgp
Jan 23 '13 at 3:50
...
How best to determine if an argument is not sent to the JavaScript function
... default value will be triggered if the argument evaluates to false, which means it might actually be undefined, null, false, 0, '' (or anything else for which Boolean(...) returns false).
So the question is when to use which check, as they all yield slightly different results.
Checking arguments....
Importing from a relative path in Python
...ou are getting a relative import rather than an absolute import. The '..' means, go to the directory above me:
from ..Common import Common
As a caveat, this will only work if you run your python as a module, from outside of the package. For example:
python -m Proj
Original hacky way
This...
Difference between knockout View Models declared as object literals vs functions
...te access to a value of this that equals the instance being created. This means that you can do:
var ViewModel = function(first, last) {
this.first = ko.observable(first);
this.last = ko.observable(last);
this.full = ko.computed(function() {
return this.first() + " " + this.last();
},...
JPA or JDBC, how are they different?
...
"without a Java EE container??" Do you mean Spring and its libraries is independent of web container?
– Bruce Zu
Sep 18 '16 at 16:00
...
You can't specify target table for update in FROM clause
...s already been updated by the query as it's in progress. Neither of these side-effects is necessarily desirable, so the safest bet is to force you to specify what will happen using an extra table.
– siride
Mar 9 '13 at 20:54
...
Shading a kernel density plot between two points.
... c(rep("A", n), rep("B", n)),
value = c(rnorm(n)^2, rnorm(n, mean = 2)))
dt2 <- dt2 %>%
group_by(category) %>%
mutate(dy = approxdens(value),
p = percent_rank(value),
pcat = as.factor(cut(p, breaks = probs,
in...
Convert two lists into a dictionary
...ommenter said:
min seems like a bad way to compare performance. Surely mean and/or max would be much more useful indicators for real usage.
We use min because these algorithms are deterministic. We want to know the performance of the algorithms under the best conditions possible.
If the oper...
Compare JavaScript Array of Objects to Get Min / Max
... This makes sense, I've been stuck with thinking about comparing data inside the array to each other instead of an external high/low number.
– firedrawndagger
Jan 14 '12 at 19:01
...
How do you check if a certain index exists in a table?
...e this:
SELECT *
FROM sys.indexes
WHERE name='YourIndexName' AND object_id = OBJECT_ID('Schema.YourTableName')
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