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How to assign colors to categorical variables in ggplot2 that have stable mapping?
...ta.frame(x=runif(10),y=runif(10),
grp = rep(LETTERS[1:5],each = 2),stringsAsFactors = TRUE)
#Create a custom color scale
library(RColorBrewer)
myColors <- brewer.pal(5,"Set1")
names(myColors) <- levels(dat$grp)
colScale <- scale_colour_manual(name = "grp",values = myColors)
and t...
What do (lambda) function closures capture?
...lent way is the one recommended by Adrien Plisson. Create a lambda with an extra argument, and set the extra argument's default value to the object you want preserved.
A little more verbose but less hacky would be to create a new scope each time you create the lambda:
>>> adders = [0,1,2,3...
Is it faster to count down than it is to count up?
...culative instructions will sneak in the "Sub i and N" without incurring an extra cycle -- and -- even the crudest compiler will optimise the the "Sub i and N" out of existence.
– James Anderson
May 13 '10 at 5:47
...
wget/curl large file from google drive
... https://drive.google.com/open?id=0B7_OwkDsUIgFWXA1B2FPQfV5S8H. Obtain the string behind the ?id= and copy it to your clipboard. That's the file's ID.
Download the file. Of course, use your file's ID instead in the following command.
gdrive download 0B7_OwkDsUIgFWXA1B2FPQfV5S8H
At first usage, t...
What are the benefits of using C# vs F# or F# vs C#? [closed]
...tter to do a UI with lots of mutable fields. Maybe he was referring to the extra overhead of having to write "mutable" and using <- instead of =.
Also depends on the library/designer used. We love using ASP.NET MVC with F# for all the controllers, then a C# web project to get the ASPX designers....
Use 'class' or 'typename' for template parameters? [duplicate]
...s expected T will always be a class, with "typename" if other types (int, char* whatever) may be expected. Consider it a usage hint.
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Can code that is valid in both C and C++ produce different behavior when compiled in each language?
...in different values in i in C and C++:
int i = sizeof('a');
See Size of character ('a') in C/C++ for an explanation of the difference.
Another one from this article:
#include <stdio.h>
int sz = 80;
int main(void)
{
struct sz { char c; };
int val = sizeof(sz); // sizeof(in...
How can I change my default database in SQL Server without using MS SQL Server Management Studio?
...names are provided without quotes. Brackets are needed if name had special chars (most common example will be domain user which is domain\username and won't work without brackets).
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How to recursively find and list the latest modified files in a directory with subdirectories and ti
...ew install coreutils and use gstat instead of stat
– CharlesB
Mar 28 '13 at 10:56
37
You don't ne...
How can I reconcile detached HEAD with master/origin?
...nally implemented as symbolic links, but later changed to plain files with extra interpretation so that they could be used on platforms that do not have symlinks.)
We have HEAD → refs/heads/master → 17a02998078923f2d62811326d130de991d1a95a
When HEAD is detached, it points directly to a commit...