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Programmatically set height on LayoutParams as density-independent pixels
...
/**
* Get conversion rate from dp into px.<br>
* E.g. to convert 100dp: px = (int) (100 * convRate);
* @param context e.g. activity
* @return conversion rate
*/
public static float convRateDpToPx(Context context) {
return context.getResources().getDisplayMetrics().densityDpi / 160f;...
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'...
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...
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 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...