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How to get a random number in Ruby
...6). A roll in craps could be simulated with 2 + rand(6) + rand(6).
Finally, if you just need a random float, just call rand with no arguments.
As Marc-André Lafortune mentions in his answer below (go upvote it), Ruby 1.9.2 has its own Random class (that Marc-André himself helped to debug,...
How to replace multiple substrings of a string?
I would like to use the .replace function to replace multiple strings.
23 Answers
23
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Restore the state of std::cout after manipulating it
...lude <iostream> or #include <ios> then when required:
std::ios_base::fmtflags f( cout.flags() );
//Your code here...
cout.flags( f );
You can put these at the beginning and end of your function, or check out this answer on how to use this with RAII.
...
_csv.Error: field larger than field limit (131072)
...
The csv file might contain very huge fields, therefore increase the field_size_limit:
import sys
import csv
csv.field_size_limit(sys.maxsize)
sys.maxsize works for Python 2.x and 3.x. sys.maxint would only work with Python 2.x (SO: what-is-sys-maxint-in-python-3)
Update
As Geoff pointed out,...
Convert string to nullable type (int, double, etc…)
...tempting to do some data conversion. Unfortunately, much of the data is in strings, where it should be int's or double, etc...
...
Setting variable to NULL after free
... int *nPtr=NULL;. Now, I would agree that this would be redundant, with a malloc following right in the next line. However, if there is code between the declaration and the first initialization, somebody might start using the variable even though it has no value yet. If you null-initialize, you get ...
How can I get clickable hyperlinks in AlertDialog from a string resource?
...nes and colors any hyperlinks (defined using <a href="..."> in the string resource passed to Builder.setMessage ) supplied the links do not become clickable.
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Java associative-array
... arrays, however this could easily be achieved using a Map. E.g.,
Map<String, String> map = new HashMap<String, String>();
map.put("name", "demo");
map.put("fname", "fdemo");
// etc
map.get("name"); // returns "demo"
Even more accurate to your example (since you can replace String w...
CoffeeScript, When to use fat arrow (=>) over arrow (->) and vice versa
When building a class in CoffeeScript, should all the instance method be defined using the => ("fat arrow") operator and all the static methods being defined using the -> operator?
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How to add texture to fill colors in ggplot2
...ul.
EDIT 2:
Additionally diagonal patterns may also be added. I added an extra variable to the data frame:
Example.Data[4,] <- c(20, 'Diagonal Pattern','Diagonal Pattern' )
Then I created a new data frame to hold coordinates for the diagonal lines:
Diag <- data.frame(
x = c(1,1,1.45,1....