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Compute a confidence interval from sample data
...y as np
import scipy.stats
def mean_confidence_interval(data, confidence=0.95):
a = 1.0 * np.array(data)
n = len(a)
m, se = np.mean(a), scipy.stats.sem(a)
h = se * scipy.stats.t.ppf((1 + confidence) / 2., n-1)
return m, m-h, m+h
you can calculate like this way.
...
Reset PHP Array Index
...45 => "America"
);
$b = array_values($a);
print_r($b);
Array
(
[0] => Hello
[1] => Moo
[2] => America
)
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JavaScript get element by name
...
250
The reason you're seeing that error is because document.getElementsByName returns a NodeList of ...
CSS to set A4 paper size
... the width of ~196mm and then scale the whole content up to the width of 210mm ~ but strangely exactly the same scaling factor is applied to contents with any width smaller than 210mm).
To fix this problem you can simply in the print media rule assign the A4 paper width and hight to html, body or di...
How to find the key of the largest value hash?
...
230
This will return max hash key-value pair depending on the value of hash elements:
def largest_h...
Bootstrap 3 and Youtube in Modal
...
110
I found this problem (or the problem I found and described at https://github.com/twbs/bootstrap/...
Get first day of week in SQL Server
...
150
To answer why you're getting a Monday and not a Sunday:
You're adding a number of weeks to the ...
App Inventor 2 BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节硬编...
...Strings 的写入路径
位于 BLEWriteOperation.write() 方法第678-690行：
if (mClass == String.class) {
byte[] str = ((String) data.get(0)).getBytes();
// 23字节硬限制！
final int len = Math.min(23, str.length + (nullTerminateStrings ? 1...
How to find out element position in slice?
...
70
Sorry, there's no generic library function to do this. Go doesn't have a straight forward way of...
Regex to replace everything except numbers and a decimal point
...
Use this:
document.getElementById(target).value = newVal.replace(/[^0-9.]/g, "");
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