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Principal component analysis in Python
....dinv: 1/d or 0, see NR
p.eigen: the eigenvalues of A*A, in decreasing order (p.d**2).
eigen[j] / eigen.sum() is variable j's fraction of the total variance;
look at the first few eigen[] to see how many PCs get to 90 %, 95 % ...
p.npc: number of principal components,
...
Generate class from database table
...type_id = typ.user_type_id
where object_id = object_id(@TableName)
) t
order by ColumnId
set @Result = @Result + '
}'
print @Result
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Reference: What is variable scope, which variables are accessible from where and what are “undefined
...sent; an administrator can disable some or all of them using the variables_order directive in php.ini, but this is not common behaviour.
A list of current superglobals:
$GLOBALS - All the global variables in the current script
$_SERVER - Information on the server and execution environment
$_GET...
PostgreSQL: Show tables in PostgreSQL
...
psql my_db_name should be run in order \dt to work. When I ran psql without a database name, I got a "No relations found" message
– Maksim Dmitriev
Nov 19 '13 at 15:01
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Decimal precision and scale in EF Code First
....Property(product => product.Price),
modelBuilder.Entity<Order>().Property(order => order.OrderTotal),
modelBuilder.Entity<OrderDetail>().Property(detail => detail.Total),
modelBuilder.Entity<Option>().Property(option => option.Price)...
Python logging not outputting anything
...a handler with level=DEBUG, the actual logging level must also be DEBUG in order to get it to output anything.
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How to remove convexity defects in a Sudoku square?
... grid:
mask = FillingTransform[largestComponent]
Now, I can use a 2nd order derivative filter to find the vertical and horizontal lines in two separate images:
lY = ImageMultiply[MorphologicalBinarize[GaussianFilter[srcAdjusted, 3, {2, 0}], {0.02, 0.05}], mask];
lX = ImageMultiply[Morphologica...
How to use sidebar with the keyboard in Sublime Text 2 and 3?
...trl + b will show/hide the sidebar. Make sure you hit K and B in the right order
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IntelliJ Organize Imports
...mport" as described by Dave.
You can also modify how the imports are auto-ordered under "Settings → Editor → Code Style → Java → Imports"
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Who is “us” and who is “them” according to Git?
... What about when only one branch is involved, such as when re-ordering or squashing commits during a rebase?
– Justin Johnson
Sep 10 '16 at 0:55
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