Grzegorz Knor
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Professional Interests: data science, finite element method, signal processing, machine learning
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NOMBRE MOYEN DE LIKES
15-year anniversary Scavenger Hunt finisher badge
Awarded to Grzegorz Knor on 09 Nov 2016
Accept 5 answers given by other contributors
Awarded to Grzegorz Knor on 08 Aug 2017
Contribute at least one answer each month for 6 consecutive months
Awarded to Grzegorz Knor on 20 Jul 2017
Solve all the problems in Cody Challenge
Awarded to Grzegorz Knor on 23 Jul 2024
Receive 10 likes on a problem you have created
Awarded to Grzegorz Knor on 28 Feb 2023
Your submissions were downloaded 10 or more times in a month
Awarded to Grzegorz Knor on 01 Nov 2019
Publish your first review
Awarded to Grzegorz Knor on 09 Oct 2019
Receive 25 likes on a problem you have created
Awarded to Grzegorz Knor on 23 Nov 2020
Your submissions received 5 five star ratings
Awarded to Grzegorz Knor on 09 Oct 2019
Publish your first submission
Awarded to Grzegorz Knor on 09 Oct 2019
Solve Project Euler problems using Matlab
Awarded to Grzegorz Knor on 11 Sep 2018
Feeds
A résolu
How to subtract?
*± ± ± ± ± ± ± ± ± ± ±* * Imagine you need to subtract one...
environ 7 ans il y a
anyone have source code of fuzzy c means?
There is <https://uk.mathworks.com/help/fuzzy/fcm.html fcm> function from <https://uk.mathworks.com/help/fuzzy/index.html?s_cid=...
plus de 7 ans il y a | 1
Question
Live Editor and view neural network
Hi, I would like to add a neural network graphical diagram to my live script. Unfortunately command <https://uk.mathworks.co...
plus de 7 ans il y a | 1 réponse | 1
1
réponseHow to get 15-min average values from 10 min average values?
I suggest to use interpolation: <https://uk.mathworks.com/help/matlab/ref/interp1.html interp1> t1 = 10:10:60 av1 = [3, ...
plus de 7 ans il y a | 0
save image in matlab
Please read this topic in a documentation: <https://www.mathworks.com/help/matlab/creating_plots/save-figure-at-specific-size-a...
plus de 7 ans il y a | 0
| A accepté
Question on imageDataStore syntax and parameters
All 'Name-Value Pair' arguments are described in the documentation: <https://uk.mathworks.com/help/matlab/ref/imagedatastore.ht...
plus de 7 ans il y a | 0
| A accepté
re-train a pre-trained autoencoder
To encode data from retrained network you need to create new network, which contains only encoder layer. Please see the code (it...
plus de 7 ans il y a | 1
I want to create random bumps on a flat surface
You can add <https://en.wikipedia.org/wiki/Gaussian_function#Two-dimensional_Gaussian_function Two-dimensional Gaussian function...
plus de 7 ans il y a | 0
| A accepté
Read the data from specific line in MATLAB
For the first time use <https://uk.mathworks.com/help/matlab/import_export/import-data-interactively.html Import Tool> and then ...
plus de 7 ans il y a | 0
How could I find the start index of an "approximate" pattern in a binary vector
I would try <https://uk.mathworks.com/help/matlab/ref/regexp.html regular expressions> : case1 = [0 0 0 0 0 0 0 1 1 1 0 0 0...
plus de 7 ans il y a | 0
Logistic Function Transform of vector values
Matrix dimensions must agree. Add dot before division ( */* ): S1=(1./(1 + exp(1).^(-1*Stemp)))
plus de 7 ans il y a | 0
| A accepté
Question
Convolutional neural network: parallel layers
Is it possible to create a CNN with parallel layers in MATLAB? For example I would like to build network similar to this one: ...
plus de 7 ans il y a | 2 réponses | 2
2
réponsesHow to determine which algorithm mldivide (A\b) uses
For sparse matrices check function <https://uk.mathworks.com/help/matlab/ref/spparms.html spparms> : spparms('spumoni',2) ...
plus de 7 ans il y a | 2
How to calculate moving average in a matrix?
From MATLAB R2016a there are functions _<https://uk.mathworks.com/help/matlab/ref/movmean.html%20 movmean>_ and _<https://uk.mat...
plus de 7 ans il y a | 0
Create a moving average
From MATLAB R2016a there is a function movmean which does not require additional toolboxes.
plus de 7 ans il y a | 3
Question
Pareto chart and XTickLabelRotation
Is there a way to plot Pareto chart and rotate XTick labels properly? Let's look at the code: y = randi(1e3,10,1); name...
plus de 7 ans il y a | 1 réponse | 0
1
réponseA résolu
Calculate some equation
Using given inputs x and z, make two outputs that are y1 = (xz)/(x/z)^2 + 14x^2 - 0.8z^2 y2 = x^z - z^x + (x/z)^2 - (z/x...
presque 8 ans il y a
A résolu
Let's get back to school, and create multiplication tables
For a given range, create multiplication tables. (start is always < endno) Example start = 17 endno = 19 Then, ...
presque 8 ans il y a
A résolu
Skip by a multiple
Given an integer create an array of its multiples. Array must have a length of 15
presque 8 ans il y a
A résolu
Rounding off numbers to n decimals
Inspired by a mistake in one of the problems I created, I created this problem where you have to round off a floating point numb...
presque 8 ans il y a
A résolu
Concatenate strings
concatenate a variable number of input strings to produce one outputstring
presque 8 ans il y a
A résolu
Calculate area of sector
A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...
presque 8 ans il y a
A résolu
Replace values under a limit
For a vector x and number n, the goal is to find every element of x inferior to n and replace it by n. Example x= [ 1 2 3...
presque 8 ans il y a
A résolu
Matrix FUN
Given a Matrix M, find out the number of elements of matrix that are divisible by 3. M = [1 2 3;4 5 6;7 8 9]; ou...
presque 8 ans il y a
A résolu
BASICS - sum part of vector
Please make a function, where as input you get vector "x" and and vector "c", where in "c" vector you get indexes to sum. Examp...
presque 8 ans il y a
A résolu
Summation of array
Given an array, Find the sum of all of the elements in it Examples: Input x = [1 2 3 5; 4 5 6 7]; Output y is 33
presque 8 ans il y a
A résolu
Back to Basics - Find no. of elements in a matrix?
Let A be a m*n matrix. Find the total no. of elements in A ? (Hint - formula based) A = [1 2 3;4 5 6]; output = 6
presque 8 ans il y a
A résolu
Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.
presque 8 ans il y a
A résolu
Evil Number
Check if a given natural number is evil or not. Read more at <https://oeis.org/A001969 OEIS>.
presque 8 ans il y a
A résolu
Convert yards to feet
The goal of this script is to convert a value given in yards to feet.
presque 8 ans il y a
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