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# NA

Last seen: 1 day ago Active since 2018

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Question

Plotting ellipses around the data points and circle around the cluster points
I have these points xy xy = [10 -10; 1 0; -1 0; 0 -1; 0 1 ;11 -10; -1 -1]; scatter(xy(:,1),xy(:,2)) grid on xlim([-20 20]) ...

9 days ago | 1 answer | 0

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Question

Calculate mahalanobis distance of matrix for each row
I want to calculate mahalanobis distance of matrix A for each row with respect to average value of column. I use 'mahal' functi...

10 days ago | 1 answer | 0

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Question

Calculate covariance matrix for simple example
I have matrix such as temp = [1 2 4 2 5; 100 300 200 600 100; 10 15 20 10 30]; %[A;B;C] I want to calculate covariance of temp...

10 days ago | 1 answer | 0

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Question

Plot function in two intervals
I'm trying to plot an interval funciton like, This is the code that I used x = -3:0.001:3; a = 1.3; y = zeros(size(x)); ...

11 days ago | 1 answer | 0

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Question

Create a grouped boxplot
I have 3 groups of data A, B, and C. A = rand(100,8); B = rand(100,8)*2; C = rand(100,8)*4; I want to plot Box chart of grpu...

5 months ago | 1 answer | 1

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Question

How to see values in heatmap when we use subplot
I have heatmap like this subplot(2,2,1); a=rand(9); k=heatmap(a); subplot(2,2,2); a=rand(9); k=heatmap(a); subplot(2,...

5 months ago | 1 answer | 0

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Question

shade area in a plot between x and y according to the value
I want to plot this picture These are the data I have x = [4.5;5;5.5;6;7;8;9;10]; y = (1:7)'; val = (0.1:0.1:1)'; Here ...

6 months ago | 0 answers | 0

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Question

Least Trimmed Squares fitting
Is there any toolbox or written code for least trimmed square in Matlab?

6 months ago | 1 answer | 0

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Question

Select rows in a given table according to 3 criteria
I have a table data like this %% Data of Table Name = {'A';'A';'A';'B';'B';'C';'D'}; index = [1;9;14;16;19;38;55]; Var_1 =...

6 months ago | 1 answer | 0

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Question

Add names to table variables from a large cell
I have a 1x72 cell with name like 'Var_name' Var_name = {[1,3,4],[4,7,8],[1,2],...,[4,6,7],[5,6,8]}; ---> 1x72 cell and ha...

6 months ago | 1 answer | 0

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Question

VariableNames for table that begins with number
I have matrix like this A =[4 1 0 0;5 0 1 1;6 1 0 1; 7 0 1 0]; I want to make a table with this variable name Var_name = {[1,...

6 months ago | 1 answer | 0

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Question

Find random samples of some rows in the matrix and ensure the rank
I have a matrix 'A': A = [ 1.2285 -1.2285 2.3433e-17 -4.1658e-17 0.70827 -0.70827 1.351e-17 -2.4017e-17 ...

7 months ago | 1 answer | 0

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Question

Solve simple equation with the floor function.
S and P are known element in the equation. I want to find x S = 10; P = 13; S = floor(P*(1-x)) I do not know how to deal wit...

7 months ago | 1 answer | 0

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Question

Finding the index of duplicate rows in a cell
I have A and B A = [3,8; 8,9; 8,9; 3,9; 3,9; 3,5; 5,10; 5,10; 3,10; 3,17; 3,17; 11,17; 10,11; 10,11; 3,10]; B = {[3,8;8,9;9,3]...

8 months ago | 1 answer | 0

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Question

Error When Using Writetable
I have this cell Using the below code to make a table: Table_1 = cell2table(g_final,'VariableNames',{'test1' 'test2' 'test3'...

11 months ago | 1 answer | 0

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Question

Find the equality of each value in the vector and cell array
I have A = {1;[];1;[]}; B = [1;4;10;4]; I want to check equality of each row in the cell to the each row in the array and fi...

1 year ago | 1 answer | 0

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Question

Insert elements into vector
I have a vector 'index' and 'val_index' index = [1;2;4;5;6;8;9]; index_val = [11;25;3;4;56;7;9]; I remove indices 3 and 7 fro...

1 year ago | 1 answer | 0

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Question

tabulate cell2table
I have a ‘group_belong’ like this: The group_belong{2} is: The group_belong{4} is: I use the below code to remove empty...

1 year ago | 1 answer | 0

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Question

Find equal value in two cell arrays
I have 2 cells A = {5;5;[];[];[];[];[];[]}; B = {5;13;4;12;12;12;17;14}; As you see, index one of cell A equals to cell B. I...

1 year ago | 1 answer | 0

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Question

Residual values for a linear regression fit
I have these points x = [1,1,2,2,3,4,4,6]'; y = [8,1,1,2,2,3,4,1]'; I want to remove the point from above set that makes the ...

1 year ago | 1 answer | 0

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Question

If statement for the structure in table
I have a table like this: %% table info alphabet = {'A';'A';'B';'A';'C';'D';'C'}; val = [52.1;20.0;13.27;10.49;4.35;4.16;3.78...

1 year ago | 1 answer | 0

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Question

Insert elements to cell array
I have cell array g like this: {'A'} {[1]} {[1]} {[1]} {'B'} {[1]} {[2]} {[1]} {'C'} {[2]} ...

1 year ago | 2 answers | 0

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Question

Set all elements of a sparse matrix to zero
I have 4 sparse matrices A, B, C, and D . ABCD = [A B; C D]; How can I set the all elements of the sparse matrix B and C to ...

1 year ago | 1 answer | 0

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Question

Obtaining the index of elements that belong to group
I have 4 groups A =[1;2;3]; B = [4;5]; C = [6;7]; D = [8,9]; I put all of these value together all_val = [1;2;3;4;5;6;7;8...

1 year ago | 1 answer | 0

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Question

least absolute deviation when we have data set
I have this data x = (1:10)'; y = 10 - 2*x + randn(10,1); y(10) = 0; how can I use least absolute value regression?

1 year ago | 2 answers | 0

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Question

How to get the minimum number of rows that, if removed, reduces the rank.
I have a matrix A How can I get the number of rows that make matrix A rank deficient. for example A =[ 6.5480 -6.5480 0...

1 year ago | 1 answer | 1

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Question

produce combination one by one error
I want to produce combination to check some condition. For finding combination, I used combnk. but if n = 32; newn = 31; in...

1 year ago | 1 answer | 0

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Question

keep the index of removed array in cell
I have M = [12,13; 6,12; 6,13; 7,8; 4,5; 5,6; 9,14; 1,2; 1,5; 13,14; 2,5; 4 9]; S = {[7,8],[6,12,13],[4,5,6,9,13,14],[1,2,5]};...

1 year ago | 1 answer | 0

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Question

Find border edges of the graph
I have a graph like this, how I can find border edges. M = [1 8; 7 8; 1 7; 7 6; 1 6; 1 5; 4 5; 1 3; 2 3; 1 2; 1 4]; Layout = [...

1 year ago | 1 answer | 1