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This is repo for Startdotng project
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QUESTION
I have been trying to replicate some work similar to this code below but when I try to use this data from this link https://raw.githubusercontent.com/plotly/datasets/master/api_docs/mt_bruno_elevation.csv Its throwing some error. I think its because of shape but don't know exactly how to modify it.
It will be great, if you help me to resolve the issue.
Here is my Code
...ANSWER
Answered 2021-May-13 at 02:04The error is occurring because found_minimum
is an int
, but global_minimum
is a Series
. I think the tutorial you're referencing assumes that the data is loaded as a numpy array
, but it is never explicitly stated.
So, z = data.to_numpy()
solves one problem and reveals another which is that the tutorial dataset is 50x50 and your data is 25x25. It's tempting to just change the limits of the random starting point, but this doesn't end up working well. The dataset is just too small for this implementation of gradient descent to appropriately converge.
To get around this issue, I just altered your dataset to manufacture a 50x50 set:
QUESTION
I saw that question, but it doesn't work for me. I don't understand why. I need button that opens an url link. Here is my startng point
...ANSWER
Answered 2021-Feb-03 at 16:44You must use InlineKeyboardButton
in order to be able to open an URL from a button.
QUESTION
I have a problem with an exercise form my uni book. Here it is:
We are interested in a binary system representing positive integers with only two digits: 1 and 2 (no zeroes!). The subsequent positions correspond to the successive powers of the two, as in the usual binary notation: at the k-th position there is a digit whose value is multiplied by 2^k for k = 0, 1, 2... . In this system - as there are no leading zeros - in addition to formerly mentioned number representation, we use a value that specifies the number of selected digits, let's call it c. Each number is therefore represented by a pair (a, c), where a is a finite sequence of 1 and 2, and c determines the length of that sequence. For example, the pair (12, 3) represents the number 4, and the pair (221, 3) represents the number 13. Write a function which, for a positive number x, determines the representation of its value in the system in question and passes it through the parameter y. Let's agree that in case x is not positive, the value of field c should be 0.
I found that I can easly convert decimal input to binary system and then convert binary to the system mentioned in the exercise. Startng from right I need to remove zeros by converting higher digit 1 into lower digit 2.
E.g.: Decimal = 21. Binary = 10101. The system form the exercise = 10101 -> 10021 ; 10021 -> 02021 -> 01221
However, there is probably more efective solution that would convert decimal directly to the system from the exercise. I'd appreciate your help in finding the algorithmic path of thinking. I would then code it by myself to make sure I understand it.
It is my first post on the forum and english is not my native language. I am sorry if I did not express myself clear enough.
Kind regards
...ANSWER
Answered 2020-Sep-26 at 13:42Let n be the number that we're trying to represent. The number c has to satisfy
20 + 21 + … + 2c−1 = 2c − 1 ≤ n ≤ 2c+1 - 2 = 2 (20 + 21 + … + 2c−1).
By inspection, these ranges partition the natural numbers, so the unique solution is c = ⌊log2 (n+1)⌋. The floor-log often can be computed with a single instruction, or you can use a bit-twiddling hack.
Once we know c, we just have to find the usual binary representation of n − (20 + 21 + … + 2c−1) = n − (2c − 1) and add one to each digit.
QUESTION
So I have this computation job, that requires startng 6 threads and waiting for those to finish. The threads change a "local" variable within the class. I want to have the function return "True" once the local variable is a certain value. However, I want to do this in a fashion where it doesn't hang the thread. So a constant "Do Loop" is not gonna work. Are there any standard ways of doing this?
...ANSWER
Answered 2017-Jul-11 at 23:05You can keep a list of your Tasks
and use Tasks.WaitAll
QUESTION
Hi i need to change folder permisions (and the contained files) from a bat file using a variable..
something like :
...ANSWER
Answered 2017-Jul-01 at 19:21the answer was :
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