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What are the differences between vector and list data types in R?
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As someone who's just gotten into R, but comes from a C/Java/Ruby/PHP/Python background, here's how I think of it.
A list is really an array + a hashmap. It's a PHP associative array.
> foo = list(bar='baz')
> foo[1]
'baz'
> foo$bar
'baz'
> foo[['bar']]
'baz'
A vector is a f...
How to document a method with parameter(s)?
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123
Since docstrings are free-form, it really depends on what you use to parse code to generate AP...
Search and Replace with RegEx components in Atom editor
...stuff on it before replacing? For example, if $1 captures a number group - 123, replace it by adding 1 to it, something like eval($1+1)..?
– SexyBeast
Feb 22 '15 at 0:35
7
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How do I convert a pandas Series or index to a Numpy array? [duplicate]
...stead, use to_numpy(copy=True);
v = df.index.to_numpy(copy=True)
v[-1] = -123
df
A B
a 1 2
b 4 5
Note that this function also works for DataFrames (while .array does not).
array Attribute
This attribute returns an ExtensionArray object that backs the Index/Series.
pd.__version__
# ...
How to read data when some numbers contain commas as thousand separator?
... Senate 115 0 0 0
3 Senate 123 15,000 71,000 21,000
4 Senate 126 6,000 14,000 8,000
5 Senate 127 110,000 234,000 134,000
6 Senate 128 120,000 159,000 134,000
7 Senate 129 0 ...
Comparing strings by their alphabetical order
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123
String.compareTo might or might not be what you need.
Take a look at this link if you need lo...
Turn off autosuggest for EditText?
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123
I had the same question but I still wanted to set this option in my XML file so I did a little...
Auto detect mobile browser (via user-agent?) [closed]
...ome type of .htaccess command - instead of using a scripting language like PHP?
– TeddyTom
Jun 17 '09 at 4:54
any idea...
How to convert a byte array to a hex string in Java?
...is the function I currently use:
private static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
public static String bytesToHex(byte[] bytes) {
char[] hexChars = new char[bytes.length * 2];
for (int j = 0; j < bytes.length; j++) {
int v = bytes[j] & 0xFF;
he...
Clear variable in python
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@Bnicholas However it's not like null in PHP, in that setting a variable to null in PHP gives you similar behaviour in most cases as if you hadn't defined it in the first place. A value of None in Python is quite different from an undefined variable. None is quite l...