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Cannot change column used in a foreign key constraint
...
127
The type and definition of foreign key field and reference must be equal.
This means your fore...
Where do gems install?
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216
Look at your gem environment.
In a terminal run gem env
You should see an entry INSTALLATION ...
Input and output numpy arrays to h5py
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133
h5py provides a model of datasets and groups. The former is basically arrays and the latter yo...
How to get number of entries in a Lua table?
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132
You already have the solution in the question -- the only way is to iterate the whole table wi...
How can I improve my paw detection?
...ly, you have 5 steps:
def find_paws(data, smooth_radius=5, threshold=0.0001):
data = sp.ndimage.uniform_filter(data, smooth_radius)
thresh = data > threshold
filled = sp.ndimage.morphology.binary_fill_holes(thresh)
coded_paws, num_paws = sp.ndimage.label(filled)
data_slices =...
Can an array be top-level JSON-text?
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127
Yes, an array is legal as top-level JSON-text.
There are three standard documents defining JS...
jQuery selectors on custom data attributes using HTML5
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1030
$("ul[data-group='Companies'] li[data-company='Microsoft']") //Get all elements with data-com...
Newline in JLabel
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176
Surround the string with <html></html> and break the lines with <br/>.
JLab...
Rails params explained?
.... For example, if a user's browser requested
http://www.example.com/?foo=1&boo=octopus
then params[:foo] would be "1" and params[:boo] would be "octopus".
In HTTP/HTML, the params are really just a series of key-value pairs where the key and the value are strings, but Ruby on Rails has a spe...
How do I convert an array object to a string in PowerShell?
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edited Nov 12 '14 at 19:46
Steven Penny
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