duda | high performant web services framework | REST library
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QUESTION
ubuntu python playright headless true get wrong page, how to solve?
...ANSWER
Answered 2022-Apr-15 at 09:41Your target site probably doesn't like the default user agent of Playwright, which is why you have to provide your own:
QUESTION
I've problem with matplotlib.pyplot.scatter
.
Firstly, I need to download the data on Iris classification and paste headlines.
...ANSWER
Answered 2022-Mar-18 at 22:32There is no problem with iris
datasets, just with the part you defined the alpha argument in the scatter function. You should change the way of assigning value to arguments in the way you did:
QUESTION
I would like you to support me by guiding me with the possible solution to the following problem:
I require that the video when I scroll-And the video goes from 0% to 100% as the scroll is made, my problem is that when I do it the parent box is made to the size of the video, completely disappearing the content, here the example:
...ANSWER
Answered 2022-Mar-18 at 19:02Actually, they are using polygon
instead of width
, and check the element in view instead of scroll position
QUESTION
I am making a frequent questions section and I added an arrow which I wanted to flip when the question is clicked and the answer showed.
I notice if I want for the element to be find with the e.currentTarget.children when clicked it most be immediate after the class clicked and I am having a hard time doing in it.
Any help is more than welcome!
This is my code:
HTML:
...ANSWER
Answered 2022-Feb-25 at 00:52Not sure what $(e.currentTarget).(e.currentTarget)('.arrow')
was meant to be, but one way to target the relative arrow is $(this).find('.titulo-arrow .arrow')
. Also, to figure out if we're opening or closing I use a className and just test for it
QUESTION
I have been dealing with this particular situation. I have a form in which the user can put some data and save it. He can do that several times creating a record of similar items. The app creates a string with this data and saves it in the localStorage. The user is able to retrieve the data on a page created with an accordion system where he can see it separately just as he typed before. Now I need to get some data from the LocalStorage to show it in a page which is out of the DOM of the app.
This is the js controller code where I want to show the data:
...ANSWER
Answered 2022-Jan-08 at 08:28I think the problem is in the object you call in html2canvas
. I made a codesandbox where I use an accordion and capture the open element to render it on a canvas.
The steps are:
- Get the panel that is open
- Get the panel dimensions to resize the canvas and clean the canvas
- Paint on the canvas
- Download image
I leave below the most important function
QUESTION
Hi I'm trying to implement tANS in a compute shader, but I am confused about the size of the state set. Also apologies but my account is too new to embed pictures of latex formatted equations.
Imagine we have a symbol frame S comprised of symbols s₁ to sₙ:
S = {s₁, s₂, s₁, s₂, ..., sₙ}
|S| = 2ᵏ
and the probability of each symbol is
pₛₙ = frequency(sₙ) / |S|
∑ pₛ₁ + pₛ₂ + ... pₛₙ = 1
According to Jarek Duda's slides (which can be found here) the first step in constructing the encoding function is to calculate the number of states L:
L = |S|
so that we can create a set of states
𝕃 = {L, ..., 2L - 1}
from which we can construct the encoding table from. In our example, this is simple L = |S| = 2^k. However, we don't want L to necessarily equal |S| because |S| could be enormous, and constructing an encoding table corresponding to size |S| would be counterproductive to compression. Jarek's solution is to create a quantization function so that we can choose an
L : L < |S|
which approximates the symbol probabilities
Lₛ / L ≈ pₛₙ
However as L decreases, the quality of the compression decreases, so I have two questions:
- How small can we make L while still achieving compression?
- What is a "good" way of determining the size of L for a given |S|?
In Jarek's ANS toolkit he uses the depth of a Huffman tree created from S to get the size of L, but this seems like a lot of work when we already know the upper bound of L (|S|; as I understand it when L = |S| we are at the Shannon entropy; thus making L > |S| would not increase compression). Instead it seems like it would be faster to choose an L that is both less than |S| and above some minimum L. A "good" size of L therefore would achieve some amount of compression, but more importantly would be easy to calculate. However we would need to determine the minimum L. Based on the pictures of sample ANS tables it seems like the minimum size of L could be the frequency of the most probable symbol, but I don't know enough about ANS to confirm this.
...ANSWER
Answered 2021-Oct-02 at 01:08After mulling it over for awhile, both questions have very simple answers. The smallest L that still achieves lossless compression is L = |A|, where A is the alphabet of symbols to be encoded(I apologize, the lossless criterion should have been included in the original question). If L < |A| then we are pigeonholing symbols, thus losing information. When L = |A| what we essentially have is a fixed length variable code, where each symbol has an equal probability weighting in our encoding table. The answer to the second part is even more simple now that we know the answer to the first question. L can be pretty much whatever you want so long as its greater than the size of the alphabet to be encoded. Usually we want L to be a power of two for computational efficiency and then we want L to be greater than |A| to achieve better compression, so a very common L size is 2 times the greatest power of two equal to or greater than the size of the alphabet. This can easily be found by something like this:
QUESTION
Return top 20% highest value in a column into 1 and make the rest of the numbers 0
DF
...ANSWER
Answered 2021-Aug-05 at 11:30use aplly
with quantile
QUESTION
Code example:
...ANSWER
Answered 2021-Aug-04 at 13:12Sorry for the late reply, was busy with sme works... You can do this in two way
HTML
QUESTION
Grettings !
I have a conventional function
and I'm returning a span
with a prop
(if I'm not wrong).
On my ts code I have this error
Here's my code.The file name is qCard.tsx
ANSWER
Answered 2021-May-07 at 14:17This is because, you are using the function name (an element in React) for __html:
QUESTION
I want to learn how to use React.FC<>
in normal functions on react.js.
I know there are two type of functions; the first is (the one that I prefer):
...ANSWER
Answered 2021-May-06 at 17:52In typescript you can't apply a type alias to a function statement. You are limited to typing the arguments and return type separately.
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