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Appending to an existing string
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answered Mar 1 '10 at 15:44
sepp2ksepp2k
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How to assign colors to categorical variables in ggplot2 that have stable mapping?
...al colour scale as follows:
#Some test data
dat <- data.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$grp)
colScale <- sc...
Best way to serialize an NSData into a hexadeximal string
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206
This is a category applied to NSData that I wrote. It returns a hexadecimal NSString representi...
How do I search within an array of hashes by hash values in ruby?
...@fathers.select {|father| father["age"] > 35 }
# => [ { "age" => 40, "father" => "Bob" },
# { "age" => 50, "father" => "Batman" } ]
Per the documentation, it "returns an array containing all elements of [the enumerable, in this case @fathers] for which block is not false."
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How do I add more members to my ENUM-type column in MySQL?
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140
ALTER TABLE
`table_name`
MODIFY COLUMN
`column_name2` enum(
'existing_value1',
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How best to include other scripts?
... one another.
That way I can use dirname:
#!/bin/sh
my_dir="$(dirname "$0")"
"$my_dir/other_script.sh"
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Check whether a string contains a substring
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edited Dec 15 '15 at 9:40
answered Sep 2 '11 at 12:21
Eug...
How do I get the directory that a program is running from?
...ytes = MIN(readlink("/proc/self/exe", pBuf, len), len - 1);
if(bytes >= 0)
pBuf[bytes] = '\0';
return bytes;
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Enabling error display in PHP via htaccess only
...hanges.php
– silex
May 25 '11 at 17:01
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Convert a RGB Color Value to a Hexadecimal String
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205
You can use
String hex = String.format("#%02x%02x%02x", r, g, b);
Use capital X's if you ...