Answered

how to find out how many columns have more than 50 elements which are greater than 1?

x = rand(100) * 2; atLeast50 = sum(x > 1, 1) > 50;

how to find out how many columns have more than 50 elements which are greater than 1?

x = rand(100) * 2; atLeast50 = sum(x > 1, 1) > 50;

11 months ago | 0

Answered

Array indices must be positive integers or logical values.

in Matlab, matrix indices start from one, not zero like other programming languages, but your index starts from zero: colum-dtn...

Array indices must be positive integers or logical values.

in Matlab, matrix indices start from one, not zero like other programming languages, but your index starts from zero: colum-dtn...

1 year ago | 0

Answered

Is there a faster way of splitting a cell array into numeric array while preserving NaN?

try this endsWithSemicolon = cellfun(@(s) endsWith(s, ';'), data); x = cellfun(@(s) textscan(s, '%f', 'Delimiter', ';', 'Empty...

Is there a faster way of splitting a cell array into numeric array while preserving NaN?

try this endsWithSemicolon = cellfun(@(s) endsWith(s, ';'), data); x = cellfun(@(s) textscan(s, '%f', 'Delimiter', ';', 'Empty...

1 year ago | 2

| accepted

Answered

A question on regexprep

A is not a match for your regexp, match = regexp(s,'\<(\w)(\w*)(\w)\>', 'match') match = 1×5 cell array {'John'...

A question on regexprep

A is not a match for your regexp, match = regexp(s,'\<(\w)(\w*)(\w)\>', 'match') match = 1×5 cell array {'John'...

1 year ago | 0

| accepted

Answered

What exactly is a StartPoint for a Curve Fitting Tool, its significance and how it works?

curve fitting works by trying to find the parameters of your model, lets say you are trying to fit a gaussian to a single peak c...

What exactly is a StartPoint for a Curve Fitting Tool, its significance and how it works?

curve fitting works by trying to find the parameters of your model, lets say you are trying to fit a gaussian to a single peak c...

1 year ago | 2

| accepted

Answered

how do I allow user to choose a folder to run the rest of the functions?

<https://www.mathworks.com/help/matlab/ref/uigetdir.html uigetdir>

how do I allow user to choose a folder to run the rest of the functions?

<https://www.mathworks.com/help/matlab/ref/uigetdir.html uigetdir>

1 year ago | 0

Answered

Create array of “deep” struct (scalar) fields

As always, you can use a small utility function to drill down the object hierarchy It's probably not the most elegant solution ...

Create array of “deep” struct (scalar) fields

As always, you can use a small utility function to drill down the object hierarchy It's probably not the most elegant solution ...

1 year ago | 1

Answered

Plot text (x axis) vs. y axis (numbers)

Why don't you convert x to a number? % mock data hrs = arrayfun(@(n) [num2str(n) 'H'], 0:23, 'UniformOutput', false); hrs(1:1...

Plot text (x axis) vs. y axis (numbers)

Why don't you convert x to a number? % mock data hrs = arrayfun(@(n) [num2str(n) 'H'], 0:23, 'UniformOutput', false); hrs(1:1...

1 year ago | 0

Answered

Indexing a matrix that's not in the workspace

you can write a utility function to do that function value = debugPrint(a, i) value = a(i); end %% or using an anonymo...

Indexing a matrix that's not in the workspace

you can write a utility function to do that function value = debugPrint(a, i) value = a(i); end %% or using an anonymo...

1 year ago | 0

| accepted

Answered

How do I unstack/transpose table in Matlab?

unstack groups using a third column, but you can trick it to do what you want by adding a fake third column id={'id1';'id1';'id...

How do I unstack/transpose table in Matlab?

unstack groups using a third column, but you can trick it to do what you want by adding a fake third column id={'id1';'id1';'id...

1 year ago | 1

| accepted

Answered

GUI gives error after moving to a different computer

Another possible workaround would be to create a stub of this function Unfortunately this function is not a builtin, so builtin...

GUI gives error after moving to a different computer

Another possible workaround would be to create a stub of this function Unfortunately this function is not a builtin, so builtin...

1 year ago | 1

Answered

How to write elements of a nested cell array to an excel?

The problem starts with the different sizes of each rpw which makes it more complecated to unravel the nested cell arrays c...

How to write elements of a nested cell array to an excel?

The problem starts with the different sizes of each rpw which makes it more complecated to unravel the nested cell arrays c...

1 year ago | 0

Answered

How to remove numbers that only show up once in a list of recurring numbers

x = [1,1,1,1,2,3,3,3,3,4,5,5,5,5,6,7,7,7,7,7,7,8,53,54,54,54,54,54]; numbers = 1:max(x); numx = accumarray(x(:), 1); atLeast2...

How to remove numbers that only show up once in a list of recurring numbers

x = [1,1,1,1,2,3,3,3,3,4,5,5,5,5,6,7,7,7,7,7,7,8,53,54,54,54,54,54]; numbers = 1:max(x); numx = accumarray(x(:), 1); atLeast2...

1 year ago | 0

Answered

How to run an App every 2 hours

Use a <https://www.mathworks.com/help/matlab/matlab_prog/use-a-matlab-timer-object.html timer>

How to run an App every 2 hours

Use a <https://www.mathworks.com/help/matlab/matlab_prog/use-a-matlab-timer-object.html timer>

1 year ago | 0

Answered

How to replace missing values in a cell array?

x = {missing(), 1, 2, 3, missing(), missing(), 5}; mask = cellfun(@ismissing, x); x(mask) = {[]}; % or whatever value yo...

How to replace missing values in a cell array?

x = {missing(), 1, 2, 3, missing(), missing(), 5}; mask = cellfun(@ismissing, x); x(mask) = {[]}; % or whatever value yo...

1 year ago | 1

| accepted

Answered

Interpolating random values to smoothen a curve

you can implement the stavisky golay filter basically the idea is to iterate through the data and on each point perform a polyn...

Interpolating random values to smoothen a curve

you can implement the stavisky golay filter basically the idea is to iterate through the data and on each point perform a polyn...

1 year ago | 1

| accepted

Answered

Scatter Plot with string in x-axis and integer on y-axis

Maybe bar chart would be better for you, but if you must use scatter plot scatter(1:5,percentage); set(gca, 'XTick', 1:5...

Scatter Plot with string in x-axis and integer on y-axis

Maybe bar chart would be better for you, but if you must use scatter plot scatter(1:5,percentage); set(gca, 'XTick', 1:5...

1 year ago | 0

Answered

how to add lable into rows

You need to use an inner join t3 = join(otherTable,goods,'key','keyColumnName') Or if the key column name is different i...

how to add lable into rows

You need to use an inner join t3 = join(otherTable,goods,'key','keyColumnName') Or if the key column name is different i...

1 year ago | 0

| accepted

Answered

Putting the result from eval into a cell array

please please please don't use eval to access varriable names eval is not built for that, however, for some reason the first th...

Putting the result from eval into a cell array

please please please don't use eval to access varriable names eval is not built for that, however, for some reason the first th...

1 year ago | 0

Answered

how to replace the elements row by rows instead of column by column in matrix

find(A==3,1,'first') find(A==3,1,'last') These lines find linear indices not [row, col] subsets. Linear indices go alon...

how to replace the elements row by rows instead of column by column in matrix

find(A==3,1,'first') find(A==3,1,'last') These lines find linear indices not [row, col] subsets. Linear indices go alon...

1 year ago | 0

| accepted

Answered

MATLAB HELP ME PLS

The trapezoidal integration method is a numeric calculation which approximates the area trapped between the curve and the x axis...

MATLAB HELP ME PLS

The trapezoidal integration method is a numeric calculation which approximates the area trapped between the curve and the x axis...

1 year ago | 0

Answered

How to access a function under a given path?

A possible solution would be to make every git branch a package. You will have to make all subfolders packages as well, but that...

How to access a function under a given path?

A possible solution would be to make every git branch a package. You will have to make all subfolders packages as well, but that...

1 year ago | 0

| accepted

Answered

how to convert the fraction part into intger?

What about K = round(mod((abs (L)-floor (abs (L))) *10e8 , 256)) Or K = floor(mod((abs (L)-floor (abs (L))) *10e8 ...

how to convert the fraction part into intger?

What about K = round(mod((abs (L)-floor (abs (L))) *10e8 , 256)) Or K = floor(mod((abs (L)-floor (abs (L))) *10e8 ...

1 year ago | 0

Answered

For loop with subs

You are setting a 2x3 matrix into l2, which duplicates mat for all possible substitutions 2x3 times 2x3 = 4x9

For loop with subs

You are setting a 2x3 matrix into l2, which duplicates mat for all possible substitutions 2x3 times 2x3 = 4x9

1 year ago | 0

Submitted

zoomginput

Zoom in/out of plot with your mouse wheel while using ginput

1 year ago | 1 download |

Question

How to change property behavior for a mocked object

I'm trying to use the mocking framework for unit tests I'm trying to make the property of a mock object return another mock obj...

1 year ago | 1 answer | 0

Answered

How to know dimensions to give in trapz function

let's say you have a column vector x and you calculate y according to y = ax^2 now if a is a vector, you will get a matrix y: ...

How to know dimensions to give in trapz function

let's say you have a column vector x and you calculate y according to y = ax^2 now if a is a vector, you will get a matrix y: ...

1 year ago | 0

Answered

Adding dropdown option from GUI in App Designer

I would put the options in a text file. Then load it during startup

Adding dropdown option from GUI in App Designer

I would put the options in a text file. Then load it during startup

1 year ago | 0

| accepted

Answered

How to plot plot from differnet location in a single figure?

If i understand your question corectly, and you have several .mat files each one with a varriable T and a varriable output, you...

How to plot plot from differnet location in a single figure?

If i understand your question corectly, and you have several .mat files each one with a varriable T and a varriable output, you...

1 year ago | 0

Answered

Rearrange any matrix Randomly with a specific sequence

A=1:20; blockSize = 5; nOutputBlocks = 2; a=reshape(A,blockSize,[]); i=sort(reshape(randperm(size(a,2)),[],nOutput...

Rearrange any matrix Randomly with a specific sequence

A=1:20; blockSize = 5; nOutputBlocks = 2; a=reshape(A,blockSize,[]); i=sort(reshape(randperm(size(a,2)),[],nOutput...

1 year ago | 0