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Prepend a level to a pandas MultiIndex
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cs95
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answered Feb 7 '17 at 16:11
okartalokartal
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In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
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106
A simple approach would be to check how many digits are output by Integer.toHexString() and add...
Data structure for loaded dice?
...ree new n-element arrays, qk, ak, and bk. Each qk is a probability between 0 and 1, and each ak and bk is an integer between 1 and n.
We generate random numbers between 1 and n by generating two random numbers, r and s, between 0 and 1. Let i = floor(r*N)+1. If qi < s then return ai else return...
What killed my process and why?
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answered Apr 7 '09 at 17:23
dwcdwc
20.8k55 gold badges3939 silver badges5252 bronze badges
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How to get a substring of text?
I have text with length ~700. How do I get only ~30 of its first characters?
5 Answers
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How to express infinity in Ruby?
...y 1.8.6, 1.8.7, and 1.9.2 you have Float.infinite?.
PositiveInfinity = +1.0/0.0
=> Infinity
NegativeInfinity = -1.0/0.0
=> -Infinity
CompleteInfinity = NegativeInfinity..PositiveInfinity
=> -Infinity..Infinity
*I've verified this in Ruby 1.8.6 and 1.9.2
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Splitting string into multiple rows in Oracle
...oach to splitting a string (comma delimited) into multiple rows in Oracle 10g (preferably) and 11g.
13 Answers
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Add st, nd, rd and th (ordinal) suffix to a number
... '14) accomplishes this:
function ordinal_suffix_of(i) {
var j = i % 10,
k = i % 100;
if (j == 1 && k != 11) {
return i + "st";
}
if (j == 2 && k != 12) {
return i + "nd";
}
if (j == 3 && k != 13) {
return i + "rd";
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What Does 'Then' Really Mean in CasperJS
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edited Nov 10 '12 at 7:05
answered Aug 14 '12 at 17:51
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How to set current working directory to the directory of the script in bash?
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#!/bin/bash
cd "$(dirname "$0")"
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