Answered

for loop with vectors having different sizes

a = {[1,2],[3,4,5]}; p = {[6,7],[8,9,10,11]}; c = 'trial'; for k1 = 1:numel(a) for k2 = 1:numel(p) s = sprintf(...

for loop with vectors having different sizes

a = {[1,2],[3,4,5]}; p = {[6,7],[8,9,10,11]}; c = 'trial'; for k1 = 1:numel(a) for k2 = 1:numel(p) s = sprintf(...

14 days ago | 0

Answered

using natsortfiles to import csv files correctly

Taking a guess that you actually want to match the last integer, not just the last digit: C = natsortfiles({S.name},'\d+^$'); ...

using natsortfiles to import csv files correctly

Taking a guess that you actually want to match the last integer, not just the last digit: C = natsortfiles({S.name},'\d+^$'); ...

15 days ago | 0

Answered

Read multiple .CSV files with csvread using a loop

V = 0:4; N = numel(V); C = cell(1,N); for k = 1:N F = sprintf('droplet.%d.csv',V(k)); C{k} = readmatrix(F,'NumHeade...

Read multiple .CSV files with csvread using a loop

V = 0:4; N = numel(V); C = cell(1,N); for k = 1:N F = sprintf('droplet.%d.csv',V(k)); C{k} = readmatrix(F,'NumHeade...

15 days ago | 0

| accepted

Answered

Convert cell array to matrix with two columns and sort rows by first column value

More robust and more efficient than using cell2mat: M = vertcat(Cell_x{:}); M = sortrows(M,1)

Convert cell array to matrix with two columns and sort rows by first column value

More robust and more efficient than using cell2mat: M = vertcat(Cell_x{:}); M = sortrows(M,1)

15 days ago | 0

| accepted

Answered

evaluate function handle (determine the value of function handle using my code

Defining lots and lots of function handles is not an efficient approach. One function is much simpler: myfun(30) function hf...

evaluate function handle (determine the value of function handle using my code

Defining lots and lots of function handles is not an efficient approach. One function is much simpler: myfun(30) function hf...

16 days ago | 0

| accepted

Answered

Search/Find sub strings in a string

This matches abbreviations followed by one digit (thus avoiding the Ra/Rag matching problem): C = {'Ra','Bt','Rag','Rg','Vm','S...

Search/Find sub strings in a string

This matches abbreviations followed by one digit (thus avoiding the Ra/Rag matching problem): C = {'Ra','Bt','Rag','Rg','Vm','S...

16 days ago | 1

Answered

Modify Repmat function to concatenate array

V = [0,1,2,3,4]; n = 3; X = [1,10*(1:n-1)]; Z = kron(X,V)

Modify Repmat function to concatenate array

V = [0,1,2,3,4]; n = 3; X = [1,10*(1:n-1)]; Z = kron(X,V)

16 days ago | 0

| accepted

Answered

How to display the Index of a matrix to other corresponding matrices

A = [8,3,5;2,4,6;9,3,4] B = [4,11,5;9,3,2;4,8,1] C = [11,40,3;10,7,5;11,3,60] [v,x] = min(A(:)); B(x) C(x) Or without resh...

How to display the Index of a matrix to other corresponding matrices

A = [8,3,5;2,4,6;9,3,4] B = [4,11,5;9,3,2;4,8,1] C = [11,40,3;10,7,5;11,3,60] [v,x] = min(A(:)); B(x) C(x) Or without resh...

17 days ago | 0

| accepted

Answered

How to create a symetric matrix with a vector?

A general solution using indexing: V = [1,2,3,4,5] X = 1:numel(V); M = V(max(X,X.'))

How to create a symetric matrix with a vector?

A general solution using indexing: V = [1,2,3,4,5] X = 1:numel(V); M = V(max(X,X.'))

17 days ago | 1

| accepted

Answered

Undefined function 'eq' for input arguments of type 'cell'. Undefined function 'gt' for input arguments of type 'cell'

@ASHU DAYAL CHAURASIYA: the error message clearly tells us what the cause of the error is: one (or both) of the arrays is actual...

Undefined function 'eq' for input arguments of type 'cell'. Undefined function 'gt' for input arguments of type 'cell'

@ASHU DAYAL CHAURASIYA: the error message clearly tells us what the cause of the error is: one (or both) of the arrays is actual...

18 days ago | 0

Answered

Set default value if no function input given

You did not count the input t when using nargin. You can include the number of inputs before varargin in the logical comparisons...

Set default value if no function input given

You did not count the input t when using nargin. You can include the number of inputs before varargin in the logical comparisons...

18 days ago | 0

| accepted

Answered

table in for loop

Just use a cell array: n = 5; C = cell(1,n); for j=1:n x=rand(5,1); y=rand(5,1); C{k} = table(x,y); end Note...

table in for loop

Just use a cell array: n = 5; C = cell(1,n); for j=1:n x=rand(5,1); y=rand(5,1); C{k} = table(x,y); end Note...

21 days ago | 0

| accepted

Answered

Removing non integer values from an array.

V = [1,23,pi,4,5.6] V(fix(V)~=V) = []

Removing non integer values from an array.

V = [1,23,pi,4,5.6] V(fix(V)~=V) = []

21 days ago | 0

Answered

Call a Function in Another Function, Prepare the Argument as a String

"Is there a general limitation in passing character arrays or strings as input to a function in MATLAB?" No, but the way you ar...

Call a Function in Another Function, Prepare the Argument as a String

"Is there a general limitation in passing character arrays or strings as input to a function in MATLAB?" No, but the way you ar...

21 days ago | 1

| accepted

Answered

Read Variables with assigned values from excel into Matlab

Note how the file itself contains invalid variable names: they contain space characters which in all of your comments you have s...

Read Variables with assigned values from excel into Matlab

Note how the file itself contains invalid variable names: they contain space characters which in all of your comments you have s...

21 days ago | 1

| accepted

Answered

Substracting previous value in a matrix and assigning it to a new matrix

a = [ 1.6766 0.6118 0.3707 0.0771 0.0010 0.2057 0.1219 0.2438 2.2065 0.8679 0.4766 0.087...

Substracting previous value in a matrix and assigning it to a new matrix

a = [ 1.6766 0.6118 0.3707 0.0771 0.0010 0.2057 0.1219 0.2438 2.2065 0.8679 0.4766 0.087...

22 days ago | 0

| accepted

Answered

Findgroups, order of unique values in an array

[ID,~,G] = unique(labels_all,'stable')

Findgroups, order of unique values in an array

[ID,~,G] = unique(labels_all,'stable')

22 days ago | 0

| accepted

Answered

Convert matrix to cell knowing the number of components to have in each cell

idx = [2;4;3]; data = [ 0.7922 0.3922 0.9595 0.6555 0.6557 0.1712 0.0357 0.7060 0.8491 ...

Convert matrix to cell knowing the number of components to have in each cell

idx = [2;4;3]; data = [ 0.7922 0.3922 0.9595 0.6555 0.6557 0.1712 0.0357 0.7060 0.8491 ...

23 days ago | 1

| accepted

Answered

storing values of for loop in a matrix

x = -60:0.5:-50; y = -10:0.5:-5; z = nan(numel(x),numel(y)); % better to preallocate array. for i = 1:numel(x) for j = 1...

storing values of for loop in a matrix

x = -60:0.5:-50; y = -10:0.5:-5; z = nan(numel(x),numel(y)); % better to preallocate array. for i = 1:numel(x) for j = 1...

23 days ago | 0

| accepted

Answered

Can I use logical indexing to find how many times a character is in a string?

You can perform logical comparisons on a character array (they are not very different from numeric arrays): str = 'some random ...

Can I use logical indexing to find how many times a character is in a string?

You can perform logical comparisons on a character array (they are not very different from numeric arrays): str = 'some random ...

23 days ago | 0

| accepted

Answered

How to quickly obtain the row indices in the original matrix A for a sub-matrix B?

[~,Y] = ismember(B,A,'rows')

How to quickly obtain the row indices in the original matrix A for a sub-matrix B?

[~,Y] = ismember(B,A,'rows')

23 days ago | 0

| accepted

Answered

Efficient indexing. Index array generating.

data = 1:1000; array1 = 1:10:101 idx = array1(:)+(0:2); out = data(idx)

Efficient indexing. Index array generating.

data = 1:1000; array1 = 1:10:101 idx = array1(:)+(0:2); out = data(idx)

23 days ago | 0

| accepted

Answered

How can i output an answer when making an app so that it has a set number of decimal places.

sprintf('%.3f',0.07) sprintf('%.3f',1)

How can i output an answer when making an app so that it has a set number of decimal places.

sprintf('%.3f',0.07) sprintf('%.3f',1)

23 days ago | 1

Answered

Index exceed the number of array elements

tmp = find(V_ref == V_Target):max(V_ref); for v = reshape(tmp,1,[]);

Index exceed the number of array elements

tmp = find(V_ref == V_Target):max(V_ref); for v = reshape(tmp,1,[]);

24 days ago | 0

Answered

Combine each column of two array side by side and add new column to new array

A = [0.6 0.7 0.8; 0.2 0.5 0.25; 0.9 0.7 0.1] B = [11 12 13; 17 18 19; 21 24 26] C = reshape([A;B;A+B],size(A,1),[])

Combine each column of two array side by side and add new column to new array

A = [0.6 0.7 0.8; 0.2 0.5 0.25; 0.9 0.7 0.1] B = [11 12 13; 17 18 19; 21 24 26] C = reshape([A;B;A+B],size(A,1),[])

24 days ago | 0

| accepted

Answered

How to get struct results in a loop?

data(i,:) = FnCarbona(i).ponteiro(); % ^^ indexing needs to specify what happens to all 50 elements.

How to get struct results in a loop?

data(i,:) = FnCarbona(i).ponteiro(); % ^^ indexing needs to specify what happens to all 50 elements.

24 days ago | 0

| accepted

Answered

Extracting specific data from a cell array

After the loop: M = vertcat(A{:}); out = M(:,[9,11])

Extracting specific data from a cell array

After the loop: M = vertcat(A{:}); out = M(:,[9,11])

24 days ago | 0

| accepted

Answered

Save each pair in container.Map to separate variable in .mat file

"Is there a better way to do this?" Of course, just use the -struct option when calling save. Note that conversion to structure...

Save each pair in container.Map to separate variable in .mat file

"Is there a better way to do this?" Of course, just use the -struct option when calling save. Note that conversion to structure...

24 days ago | 1

| accepted

Answered

how to convert cell array to matrix

Where C is your cell array: M = horzcat(C{:}).'

how to convert cell array to matrix

Where C is your cell array: M = horzcat(C{:}).'

26 days ago | 0

| accepted