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How to change shape color dynamically?
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Does not work. You will get a cast error. Needs a fix or another answer accepted
– ndgreen
Jun 30 '14 at 17:32
6
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What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?
...TUArray could have helped me, but I didn't like fighting with cryptic type errors and efforts necessary to write polymorphic code with STUArray.
So the problem with Arrays is that they are not well suited for numerical computations. Hmatrix' Data.Packed.Vector and Data.Packed.Matrix are better in t...
Algorithm to compare two images
...he matches and the non matches. If they are within a certain threshold of error, you have a match. Otherwise, you could try reducing the resolution up to a certain point and see if the probability of a match improves.
Regions of Interest
Some images may have distinctive segments/regions of int...
What is the difference between “ is None ” and “ ==None ”
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If you use numpy,
if np.zeros(3)==None: pass
will give you error when numpy does elementwise comparison
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Nodejs - Redirect url
..." url is specific to your application. It could be a simple file not found error or something else if you are doing a RESTful app. Once you've figured that out, sending a redirect is as simple as:
response.writeHead(302, {
'Location': 'your/404/path.html'
//add other headers here...
});
respons...
Is there a function that returns the current class/method name? [duplicate]
...re>) in place of the string. True, it doesn't save you from copy/paste errors where the method reference ends up being valid but its speed makes it quite useful none-the-less.
– bielawski
Feb 20 at 16:07
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Python: TypeError: cannot concatenate 'str' and 'int' objects [duplicate]
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I also had the error message "TypeError: cannot concatenate 'str' and 'int' objects". It turns out that I only just forgot to add str() around a variable when printing it. Here is my code:
def main():
rolling = True; import random
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Node.js version on the command line? (not the REPL)
...de version. The former reports an unrecognized flag / bad option (in 0.12) error and then enters the REPL, whereas the latter indeed tries to load a non-existent file, and aborts without entering the REPL. @JonathanLonowski has already stated it in a comment on the question, but let me repeat it he...
How to drop unique in MySQL?
... able to drop a key like this if a foreign key to the email column exists (error 150) . To get this to work, drop the foreign key first, then drop the index, and recreate the foreign key afterwards. e.g ALTER TABLE fuinfo DROP foreign key fk_name_for_email;
– Brad Parks
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Joining three tables using MySQL
...yntax, it is well worth your time to learn it. It will help you avoid JOIN errors like you have made in the future.
– RedFilter
Sep 14 '10 at 14:38
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