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How are feature_importances in RandomForestClassifier determined?
...-(0+3*0.444)) + (3*0.444-(0+0)))
print("petal width (cm)",(150* 0.667 - (0+100*0.5)) +(100*0.5-(54*0.168+46*0.043))+(6*0.444 -(0+3*0.444)) + (48*0.041-(0+0)))
We get feature_importance: np.array([0,1.332,6.418,92.30]).
After normalized, we can get array ([0., 0.01331334, 0.06414793, 0.92253873]),t...
Difference between abstraction and encapsulation?
...
+100
Most answers here focus on OOP but encapsulation begins much earlier:
Every function is an encapsulation; in pseudocode:
point x ...
Avoid trailing zeroes in printf()
..., it won't cause a problem (at least for that value) since the resultant 0.10000000000000000555 will be 0.1 when stripped back. The problem may come if you have a value slightly under such as if the closest representation of 42.1 was 42.099999999314159. If you really wanted to handle that, then you'...
Difference between `constexpr` and `const`
...ds. For example.
class test
{
int x;
void function1()
{
x=100; // OK.
}
void function2() const
{
x=100; // ERROR. The const methods can't change the values of object fields.
}
};
A constexpr is a different concept. It marks a function (member or non-member) as t...
How to define two fields “unique” as couple
... "Journal")
volume_number = models.CharField('Volume Number', max_length=100)
comments = models.TextField('Comments', max_length=4000, blank=True)
class Meta:
unique_together = ('journal_id', 'volume_number',)
sh...
CSS overflow-x: visible; and overflow-y: hidden; causing scrollbar issue
...to set my slide to overflow: hidden, so when setting my pictures to width: 100% the pictures would look vertically cut, and so I forced them to be visible with !important and to avoid showing the slide animation out of the box I set overflow: hidden to the container div of the slide. Hope it works f...
Is there a cross-domain iframe height auto-resizer that works?
... <iframe id="IframeId" src="http://xyz.pqr/contactpage" style="width:100%;" onload="setIframeHeight(this)"></iframe>
</div>
Next you have to bind windows "message" event under web page "abc.com/page"
window.addEventListener('message', function (event) {
//Here We have to check...
How to put an image in div with CSS?
...p;</div>
and put this into your css file:
div.picture1 {
width:100px; /*width of your image*/
height:100px; /*height of your image*/
background-image:url('yourimage.file');
margin:0; /* If you want no margin */
padding:0; /*if your want to padding */
}
otherwise, just use t...
How to detect page zoom level in all modern browsers?
...a: document.documentElement.offsetWidth / width of a position:fixed; width:100% div. from here (Quirksmode's widths table says it's a bug; innerWidth should be CSS px). We use the position:fixed element to get the width of the viewport including the space where the scrollbars are; document.documentE...
What is Vim recording and how can it be disabled?
... hit any number before the @ to replay the recording that many times like (100@<letter>) will play your actions 100 times
– Tolga E
Aug 17 '13 at 3:07
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