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Factors in R: more than an annoyance?
... Speciessetosa Speciesversicolor Speciesvirginica
# 1.462 4.260 5.552
iris.alt <- iris
iris.alt$Species <- as.character(iris.alt$Species)
lm(Petal.Length ~ -1 + Species, data=iris.alt)
# Call:
# lm(formula = Petal.Length ~ -1 + Species, data = i...
How do I remove the first characters of a specific column in a table?
...n in a table? Column name is Student Code and an example value is ABCD123Stu1231 .
I want to remove first 4 chars from my table for all records
...
Getting the difference between two sets
...
204
Try this
test2.removeAll(test1);
Set#removeAll
Removes from this set all of its eleme...
How to split() a delimited string to a List
... edited Jan 31 at 18:43
d219
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answered Feb 13 '12 at 16:04
...
Javascript Object push() function
... [];
// ...
data[0] = { "ID": "1", "Status": "Valid" };
data[1] = { "ID": "2", "Status": "Invalid" };
// ...
var tempData = [];
for ( var index=0; index<data.length; index++ ) {
if ( data[index].Status == "Valid" ) {
tempData.push( data );
}
}
data = tempData;
...
Jquery mouseenter() vs mouseover()
...
274
You see the behavior when your target element contains child elements:
http://jsfiddle.net/ZC...
How to pass command line argument to gnuplot?
...
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edited Jun 21 '19 at 16:01
Ciro Santilli 郝海东冠状病六四事件法轮功
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...
Hosting Git Repository in Windows
...nd a git client that supports git daemon)
Step 1: Open a bash shell
Step 2: In the directory /cygdrive/c/cygwin64/usr/local/bin/, create a file named "gitd" with the following content:
#!/bin/bash
/usr/bin/git daemon --reuseaddr --base-path=/git --export-all --verbose --enable=receive-pack
Ste...
Enable remote MySQL connection: ERROR 1045 (28000): Access denied for user
...
12 Answers
12
Active
...
Object comparison in JavaScript [duplicate]
...methods and DOM nodes inside:
JSON.stringify(obj1) === JSON.stringify(obj2)
The ORDER of the properties IS IMPORTANT, so this method will return false for following objects:
x = {a: 1, b: 2};
y = {b: 2, a: 1};
2) Slow and more generic.
Compares objects without digging into prototypes, t...