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Get type of all variables
...ly) #a function is function
class(charToRaw("hi")) #convert string to raw: raw
class(array("hi")) #array of items is: array
#So far so good, but those who wish to keep their sanity go no further
class(5 + 5L) #do...
Importing data from a JSON file into R
...console
library(RJSONIO)
library(RCurl)
json_file = getURL("https://raw.githubusercontent.com/isrini/SI_IS607/master/books.json")
json_file2 = RJSONIO::fromJSON(json_file)
head(json_file2)
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What is SQL injection? [duplicate]
...I adhere to is to use parameterized stored procedures rather than building raw SQL in code.
Stored Procedure parameters don't get executed, making them safe in most cases.
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How can I embed a YouTube video on GitHub wiki pages?
...
Markdown does not officially support video embeddings but you can embed raw HTML in it. I tested out with GitHub Pages and it works flawlessly.
Go to the Video page on YouTube and click on the Share Button
Choose Embed
Copy and Paste the HTML snippet in your markdown
The snippet looks like: ...
What is the proper way to check for existence of variable in an EJS template (using ExpressJS)?
... name of the object containing them, you can do if (locals.foo). It's just raw js :p
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Quick way to list all files in Amazon S3 bucket?
... in addition, s3 encodes the filenames to be used as URLs, these are just raw filenames..
– Casey
Dec 23 '19 at 21:00
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apt-get for Cygwin?
...ow the above steps and then
use Cygwin Bash for the following steps:
wget rawgit.com/transcode-open/apt-cyg/master/apt-cyg
install apt-cyg /bin
Now that apt-cyg is installed. Here are few examples of installing some
packages:
apt-cyg install nano
apt-cyg install git
apt-cyg install ca-certificat...
Deleting DataFrame row in Pandas based on column value
...sking:
In [56]: df
Out[56]:
line_date daysago line_race rating raw wrating
0 2007-03-31 62 11 56 1.000 56.000
1 2007-03-10 83 11 67 1.000 67.000
2 2007-02-10 111 9 66 1.000 66.000
3 2007-01-13 139 10 ...
How to avoid reverse engineering of an APK file?
...erver and device.
When storing values on the device, don't store them in a raw format. For example, if you have a game, and you're storing the amount of in game currency the user has in SharedPreferences. Let's assume it's 10000 coins. Instead of saving 10000 directly, save it using an algorithm lik...
Why do we have to normalize the input for an artificial neural network?
... example a number of records in the database).
In such case feeding this raw value into your network will not work very well. You will teach your network on values from lower part of range, while the actual inputs will be from the higher part of this range (and quite possibly above range, that the...