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Comment out text in R Markdown (Rmd file)
...```{r}
# x = pi
# ```
---
Note however that this does not prevent knitr from evaluating inline r code.
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Is there a more elegant way of adding an item to a Dictionary safely?
...
simply
dict[key] = view;
From the MSDN documentation of Dictionary.Item
The value associated with the
specified key. If the specified key is
not found, a get operation throws a
KeyNotFoundException, and a set
operation creates a new eleme...
Simple basic explanation of a Distributed Hash Table (DHT)
...auty of consistent hashing is that we eliminate the number of buckets "n", from the equation.
In naive hashing, first variable is the key of the object to be stored in the table. We'll call the key "x". The second variable is is the number of buckets, "n". So, to determine which bucket/machine ...
How to set a single, main title above all the subplots with Pyplot?
...ots_adjust(top=0.88)
See answer below about fontsizes
Example code taken from subplots demo in matplotlib docs and adjusted with a master title.
import matplotlib.pyplot as plt
import numpy as np
# Simple data to display in various forms
x = np.linspace(0, 2 * np.pi, 400)
y = np.sin(x ** 2)
f...
Is there an equivalent for var_dump (PHP) in Javascript?
...
To answer the question from the context of the title of this question, here is a function that does something similar to a PHP var_dump. It only dumps one variable per call, but it indicates the data type as well as the value and it iterates throu...
How to ignore all hidden directories/files recursively in a git repository?
...ed a given file the ignore will not work on him anymore you must delete it from the repository and the next time you create it the .gitignore will ignore it.
– Georgi Peev
May 2 at 10:16
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What does the constant 0.0039215689 represent?
...tially, I was wondering the same thing. But if you use 256, it would scale from 0.0 - 0.996 instead the desired 0.0 - 1.0. (0.996 = 255/256 where 255 is the largest 8-bit integer)
– Mysticial
Mar 25 '14 at 18:53
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Why does `a == b or c or d` always evaluate to True?
...ther.
In [1]: a,b,c,d=1,2,3,4
In [2]: a==b
Out[2]: False
But, inherited from the language C, Python evaluates the logical value of a non zero integer as True.
In [11]: if 3:
...: print ("yey")
...:
yey
Now, Python builds on that logic and let you use logic literals such as or on in...
How to copy part of an array to another array in C#?
...ethod Copy, which copies the element of a array to b array.
While copying from one array to another array, you have to provide same data type to another array of which you are copying.
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Does a UNIQUE constraint automatically create an INDEX on the field(s)?
...ike a regular index with added checking for uniqueness. Using SHOW INDEXES FROM customer you can see your unique keys are in fact B-tree type indexes.
A composite index on (email, user_id) is enough, you don't need a separate index on email only - MySQL can use leftmost parts of a composite index. ...