mxn | A Javascript Mapping Abstraction library | Map library
kandi X-RAY | mxn Summary
kandi X-RAY | mxn Summary
Mapstraction is a library that provides a common API for various javascript mapping APIs to enable switching from one to another as smoothly as possible. Developers can code their applications once, and then easily switch mapping provider based on project needs, terms and conditions, and new functionality. Users can switch maps as desired based on personal taste and quality of maps in their local area. Various tools built on top of Mapstraction allow users to easily integrate maps into their own sites, and configure them with different controls, styles, and provider.
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QUESTION
Give numpy array A with is MxN and B which is DxN calculate the euclidean distance s.t. ijth element of AB=L2(A[i,:]-B[:,j]) without a for loop.
I thought you could do something liek
...ANSWER
Answered 2021-Jun-14 at 03:24import numpy as np
M, D, N = 100, 50, 5
A = np.random.random((M, N))
B = np.random.random((D, N))
# A.K.A AB
euclidean = np.sqrt(np.sum((A[:, None, :] - B[None, :, :]) ** 2, axis=2))
QUESTION
Is there any better or simpler solution for this task:
"A matrix of dimensions MxN is given, filled with the numbers 0 and 1. The field on which the number 0 is written represents land, and the field on which it is written number 1 represents water. Write a function largestLake(int [] [] map) which calculates the size of the largest water surface in the matrix map. The size of a water surface is the number of fields of value 1 that that water surface contains. Two water cells are considered connected if they are adjacent horizontally, vertically or diagonally." ?
Example:
Input:
4 5 //MxN
0 0 1 1 0
1 0 1 1 0
0 1 0 0 0
0 0 0 1 1
Output:
6
I tried to find it with BFS algorithm, but it ended up with too many loops. It says in the task that "The best solution has complexity O (M * N)."
I loaded matrix in main and here is my function:
...ANSWER
Answered 2021-Jun-13 at 22:55Try using recursion.
QUESTION
I am trying to do a merge (insert and update) with the row_number function so that the ID_TRANS field are unique values in the remaining fields apply certain conditions. But when executing it I get a right parenthesis error, it is worth mentioning that I have modified and added parentheses and it remains unresolved.
...ANSWER
Answered 2021-Jun-01 at 19:05Looks like a closing parenthesis is missing, here:
QUESTION
I have two 2D numpy arrays representing raster images where classes 1, 2, 3
exist.
I need to obtain all possible combinations of these two arrays (should be 3 × 3 = 9
in this case) and create a new 2D array that is classified to 1-8
based on which combination exists at the spot.
There are also np.nan
values as it is natural for rasters (must be MxN rectangle) but there is never a combination of np.nan
and a valid category.
Example how I imagine that with small sample arrays:
Input arrays:
...ANSWER
Answered 2021-May-25 at 20:15You can use np.dstack
to "zip" the two matrices.
QUESTION
I'm using the new Native Checkout SDK for Android with Java and I've been following every step in the documentation but this keeps happening and I don't know why
This is on my public class app extends Application
...ANSWER
Answered 2021-May-24 at 07:37Just Solved It by adding this line in the extends application file:
QUESTION
I am using Chart.js of version 3.2.1 and ng2-charts of version 3.0.0-beta.9. I was upgrading a project with this versions. I started with mock data and everything was ok: the charts were showing up as expected.
Until I started testing with the real data, I get from the backend. The axes, labels, legends are not updating and charts are not showing up.
I reproduced the problem here: https://stackblitz.com/edit/chart-js-321-ng2-charts-300-beta9-rest?file=src%2Fapp%2Fapp.component.ts
HTML:
...ANSWER
Answered 2021-May-22 at 13:34https://github.com/valor-software/ng2-charts/issues/1313
Instead of chart.update() temporarily use chart.render().
EDIT: in ng2-charts@3.0.0-rc.2 this issue is solved. You can use update() or even NO update() method at all.
QUESTION
I am trying to scrape a couple of tables from this website which are hidden under an expand button. However it looks like the table structure is really weird and I'm having trouble.
my code so far is
...ANSWER
Answered 2021-May-12 at 15:31Make your life easier and just dump the HTML
to pandas
. All the tables are there and you can access them either with a for loop
or via indexing
.
Here's how:
QUESTION
I have a problem with this Custom Hook.
...ANSWER
Answered 2021-May-08 at 11:04I saw you don't return in Selecionar
, you need to update to return value:
QUESTION
This is what I get when I type the not found code: "ZZZ Not a valid code USD Not a valid code {value} Not a valid amount" By just adding one wrong input I'm getting on all the others a flash msg as wrong, and I'm also not getting the number. I have try to use if elif else and result is even worse.
I just added 'USD' code to the countries list and I got some progress, where I'm running in some issues is with amt_to_convert.
Input one 'convert_from' is using a value out of countries list.
Input two 'amt_to_convert' use the amout to be convert, wish is a number.
Input three 'convert_to' is using a value out of countries list.
...app.py
ANSWER
Answered 2021-May-01 at 17:43According to your error, it is reporting ZZZ
and USD
as invalid countries. This leads to the suspicion you are somehow passing USD
as a country (either convert_from or convert_to). You should actually check you are entering the right value in one of those fields.
Also, I would rename the field value
since value
has a specific meaning in HTML and Forms (maybe call it amt_to_convert
). Who knows, it might be interfering with your code
Also, you will definitely get an error for the amount because you are checking that it is a float value but your form will pass it as a string to Flask and you didn't convert the value immediately to float (you only convert the value while it is being passed to your convert function; you are not converting your stored variable).
Change your code to value = float(request.form.get('value'))
Explanation: You raise an error when value is not float, so you should convert the value from your form to float
QUESTION
From my workout instruction:
A 2D Gaussian can be formed by convolution of a 1D Gaussian with its transpose.
Here is my 1d gaussian function:
...ANSWER
Answered 2021-Apr-12 at 13:09You could just do a matrix multiplication. The convolution should also work, just beware of the padding.
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