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How to include a child object's child object in Entity Framework 5
...tity you can use an overload of the Include() method which takes a lambda expression instead of a string. You can then Select() over children with Linq expressions rather than string paths.
return DatabaseContext.Applications
.Include(a => a.Children.Select(c => c.ChildRelationshipType))...
Python Pandas: Get index of rows which column matches certain value
Given a DataFrame with a column "BoolCol", we want to find the indexes of the DataFrame in which the values for "BoolCol" == True
...
Guards vs. if-then-else vs. cases in Haskell
...condition, or one single decision you need to make. Nested if..then..else-expressions are very uncommon in Haskell, and guards should almost always be used instead.
let absOfN =
if n < 0 -- Single binary expression
then -n
else n
Every if..then..else expression can be replaced by a guar...
Save classifier to disk in scikit-learn
...t objects that can be pickled and dumped like any other. To continue your example:
import cPickle
# save the classifier
with open('my_dumped_classifier.pkl', 'wb') as fid:
cPickle.dump(gnb, fid)
# load it again
with open('my_dumped_classifier.pkl', 'rb') as fid:
gnb_loaded = cPickle.lo...
Remove an entire column from a data.frame in R
...es anyone know how to remove an entire column from a data.frame in R? For example if I am given this data.frame:
6 Answers
...
Meaning of = delete after function declaration
What does = delete mean in that context?
9 Answers
9
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libpthread.so.0: error adding symbols: DSO missing from command line
...prototypes -Wmissing-field-initializers -Wno-override-init \
-g -O2 -export-dynamic -o utilities/ovs-dpctl utilities/ovs-dpctl.o \
lib/libopenvswitch.a \
/home/jyyoo/src/dpdk/build/lib/librte_eal.a /home/jyyoo/src/dpdk/build/lib/libethdev.a /home/jyyoo/src/dpdk/build/lib/librte_cmdlin...
Get ffmpeg information in friendly way
... about my video files with ffmpeg, it pukes a lot of useless information mixed with good things.
4 Answers
...
How to use LINQ to select object with minimum or maximum property value
...
People.Aggregate((curMin, x) => (curMin == null || (x.DateOfBirth ?? DateTime.MaxValue) <
curMin.DateOfBirth ? x : curMin))
share
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improv...
The difference between sys.stdout.write and print?
...ject is sys.stdout, but you can pass a file using the "chevron" form. For example:
print >> open('file.txt', 'w'), 'Hello', 'World', 2+3
See: https://docs.python.org/2/reference/simple_stmts.html?highlight=print#the-print-statement
In Python 3.x, print becomes a function, but it is still...