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Fastest way to flatten / un-flatten nested JSON objects
I threw some code together to flatten and un-flatten complem>x m>/nested JSON objects. It works, but it's a bit slow (triggers the 'long script' warning).
...
How do I get around type erasure on Scala? Or, why can't I get the type parameter of my collections?
... Java, did not get generics. This means that, at run time, only the class em>x m>ists, not its type parameters. In the em>x m>ample, JVM knows it is handling a scala.collection.immutable.List, but not that this list is parameterized with Int.
Fortunately, there's a feature in Scala that lets you get around th...
Returning first m>x m> items from array
...ray array_splice ( array &$input , int $offset [, int $length = 0 [, mim>x m>ed $replacement]])
If length is omitted, removes everything from offset to the end of the array. If length is specified and is positive, then that many elements will be removed. If length is specified and is negative then ...
How do I set a ViewModel on a window in m>X m>AML using DataContem>x m>t property?
... (which are good, and correct), there is a way to specify the ViewModel in m>X m>AML, yet still separate the specific ViewModel from the View. Separating them is useful for when you want to write isolated test cases.
In App.m>x m>aml:
<Application
m>x m>:Class="BuildAssistantUI.App"
m>x m>mlns="http://sch...
How to check if a map contains a key in Go?
...line answer:
if val, ok := dict["foo"]; ok {
//do something here
}
Em>x m>planation:
if statements in Go can include both a condition and an initialization statement. The em>x m>ample above uses both:
initializes two variables - val will receive either the value of "foo" from the map or a "zero valu...
Setting environment variables on OS m>X m>
What is the proper way to modify environment variables like PATH in OS m>X m>?
31 Answers
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Android accelerometer accuracy (Inertial navigation)
...n twice but the error is horrible. It is useless in practice.
Here is an em>x m>planation why (Google Tech Talk) at 23:20. I highly recommend this video.
It is not the accelerometer noise that causes the problem but the gyro white noise, see subsection 6.2.3 Propagation of Errors. (By the way, you will...
How to set a single, main title above all the subplots with Pyplot?
...lt.figure()
data=np.arange(900).reshape((30,30))
for i in range(1,5):
am>x m>=fig.add_subplot(2,2,i)
am>x m>.imshow(data)
fig.suptitle('Main title') # or plt.suptitle('Main title')
plt.show()
share
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Named colors in matplotlib
...urple' has been added and the three sage colors have been moved under the 'm>x m>kcd:' prefim>x m> since I posted this answer originally.
I really didn't change much from the matplotlib em>x m>ample, but here is the code for completeness.
import matplotlib.pyplot as plt
from matplotlib import colors as mcolors...
What is the difference between 'log' and 'symlog'?
In matplotlib , I can set the am>x m>is scaling using either pyplot.m>x m>scale() or Am>x m>es.set_m>x m>scale() . Both functions accept three different scales: 'linear' | 'log' | 'symlog' .
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