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# JESUS DAVID ARIZA ROYETH

Last seen: 4 mesi ago Active since 2015

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Checking invertiblity of a symbolic matrix (small size N=12)
remember that a matrix has an inverse if and only if its determinant is different from 0, therefore you must calculate for which...

circa 2 anni ago | 0

Writing a frame to a video error
you need to rearrange some things: clear all;clc; filename1='x_recall_safeaudio_shockvideo.csv'; filename2='y_recall_safeau...

circa 2 anni ago | 0

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How do I get specific rows from a matrices where a<= x<= b
newmatrix=data1(and(and(data1(:,1)<=10,data1(:,2)<=150),data1(:,2)>=75),:)

circa 2 anni ago | 0

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ZORD=sortrows(Z',4)'; [~,~,C]=unique(ZORD(end,:)); ZFIN=[ZORD; C']

oltre 2 anni ago | 1

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how to know if a char vector contains unwanted characters?
y=["5","6","10"];%y example condition=all(ismember(y,x))

oltre 2 anni ago | 0

How to eliminate duplicate rows in an array without changing their orders?
D=unique(DOM,'rows','stable')

oltre 2 anni ago | 1

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Convert Matlab CNN to c# to be used in .net desktop app.
yes you can Generate a .NET Assembly and Build a .NET Application with Matlab Compiler you can use the exportONNXNetwork funct...

oltre 2 anni ago | 0

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How to extract some rows from a matrix and put them in another matrix?
setdiff(Q,N,'rows')

oltre 2 anni ago | 0

Deleting a row y from a matrix
A(all(A==y,2),:)=[] edit previous versions: A(all(A==repmat(y,size(A,1),1),2),:)=[]

oltre 2 anni ago | 0

Filtrar datos cada n pasos en el tiempo de una matriz
matrizoriginal=0:0.0001:49 ; nuevamatriz=matrizoriginal(1:1000:end)

oltre 2 anni ago | 0

buenas alguien sabe como puedo poner en una formula numeros aleatorios normalmente distribuidos?
mira la documentación : https://la.mathworks.com/help/matlab/ref/randn.html números aleatorios normalmente distribuidos : n=...

oltre 2 anni ago | 0

Alguien me puede ayudar excel y matlab
para el que le sirva aquí está la documentación oficial para plotear funciones de transferencia y las respuestas del sistema : h...

oltre 2 anni ago | 0

Sum of integers up to n using a while loop
try it yourself with a for (see documentation) https://www.mathworks.com/help/matlab/ref/for.html You can be guided by this ex...

oltre 2 anni ago | 1

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Octave--compare two matrix
M=A(ismember(A,B,"rows"),:)

oltre 2 anni ago | 0

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Why sometimes we place an empty brackets inside function inputs?
means that the second value the function receives is empty, in both cases if you give a value to that second parameter to "min"...

oltre 2 anni ago | 0

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how to fix this upper directory link?
File_W = fullfile(app.Path, '..', 'MyFolder', [fileName, '_myFormat_.xlsx']); writetable(T1, File_W); a=dir(File_W); namefold...

oltre 2 anni ago | 0

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Datetime problem of converting string
hh is uppercase D=datetime('2019/09/05 19:02:11', 'InputFormat','yyyy/MM/dd HH:mm:ss')

oltre 2 anni ago | 1

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Error : Subscript indices must either be real positive integers or logicals.
you missed a "*" here : 2*g1*(2*..... and many "." ./ g1 = 1.4; R1 = 287; T = 283.15; g4 = 1.667; R2 = 2077; a1 = sqr...

oltre 2 anni ago | 0

How to find the position of a row in an array
rows=find(all(R==S,2))

oltre 2 anni ago | 0

Matrix Input Layer for Deep Neural Networks
The wonderful thing about Matlab is that almost everything is seen as matrices or vectors, in fact this is not a disadvantage bu...

oltre 2 anni ago | 0

Find corresponding values for unique values in a matrix
m= accumarray(A(:),B(:)); d=find(m); C=[d m(d)]

oltre 2 anni ago | 1

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dataset - add a new row and fill in data in a loop
"The dataset data type is not recommended. To work with heterogeneous data, use the MATLAB® table data type instead" data=readt...

oltre 2 anni ago | 1

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Error using tabular/addvars (line 174) Variables must have the same number of rows as the table they are being added to.
for i = 1:numel(B) B{i}.Properties.VariableNames = upper(B{i}.Properties.VariableNames);%change all variable names end ne...

oltre 2 anni ago | 1

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How do I set up a function to split up a randomly generated vector into an "if,else" statements to resize it in equal portions of 1, 2, or 3 rows
clc array = [1 2 3 4 5 6 7 8 9 10 11 12];%1:12 do the same s=1:numel(array); fac = s(rem(numel(array),s)==0); allpos=arrayfu...

oltre 2 anni ago | 1

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How does a matrix sort based on another matrix?
Solution: C=zeros(size(B)); C(sub2ind(size(B),repmat((1:size(B,1))',1,size(B,2)),A))=B

oltre 2 anni ago | 1

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Converting all arrays inside a cell to tables
newC is 40x32, each cell is a table 336x1 : newC = cellfun(@(x) table(x(:)), C, 'uniformoutput', false)

oltre 2 anni ago | 0

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How to replace a range of pixel values with another range of pixel values within my image?
yourimage(34,70:80,:)=yourimage(34,60:70,:)

oltre 2 anni ago | 0

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How to replace a pixel value of my image with another value?
works for RGB ,grayscale, and black and white images yourimage(34,71,:)=yourimage(34,55,:)

oltre 2 anni ago | 0

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