Answered

Extract single-digit and double-digit numbers at the same time from a cell array with "regexp"

a={'1','3','6-10','11-20'}; b=regexp(a,'[0-9]+','match'); %<<< add the + to match multiple numeric characters b{:}

Extract single-digit and double-digit numbers at the same time from a cell array with "regexp"

a={'1','3','6-10','11-20'}; b=regexp(a,'[0-9]+','match'); %<<< add the + to match multiple numeric characters b{:}

7 månader ago | 1

| accepted

Answered

How to match mean and standard deviation of 2 datasets for data that cannot be less than 0

Your model data doesn't look at all like the observed data, so I'm not surprised that trying to force their statistics to match ...

How to match mean and standard deviation of 2 datasets for data that cannot be less than 0

Your model data doesn't look at all like the observed data, so I'm not surprised that trying to force their statistics to match ...

7 månader ago | 0

Answered

confirm valid file identifier before flcose?

If you call fopen on the file identifier when the file is closed it will return empty (instead of returning the filename). So, ...

confirm valid file identifier before flcose?

If you call fopen on the file identifier when the file is closed it will return empty (instead of returning the filename). So, ...

8 månader ago | 0

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Answered

Why is the error in the attached code?

After adding end to all of the functions so that this would even run, you get an dimension error (see below). You are trying as...

Why is the error in the attached code?

After adding end to all of the functions so that this would even run, you get an dimension error (see below). You are trying as...

8 månader ago | 0

| accepted

Answered

Need for help for performance improvement or refactoring methods on this code

Wow! That code gets weird really fast. First, you haven't posted code that will actually run. You've shown three functions ...

Need for help for performance improvement or refactoring methods on this code

Wow! That code gets weird really fast. First, you haven't posted code that will actually run. You've shown three functions ...

9 månader ago | 0

Answered

How can I break a long column vector (281820X1) into 140 short column vectors (2013X1)?

Use reshape data = (1:281820)'; cols = 140; rows = numel(data) / cols; data_reshaped = reshape(data, [rows cols]); whos ...

How can I break a long column vector (281820X1) into 140 short column vectors (2013X1)?

Use reshape data = (1:281820)'; cols = 140; rows = numel(data) / cols; data_reshaped = reshape(data, [rows cols]); whos ...

9 månader ago | 0

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Answered

How to include a negative number in initial conditions for Eulers method code?

It is always better to post example code as text rather than a screenshot. Nevertheless... Since the first element of x is -1 ...

How to include a negative number in initial conditions for Eulers method code?

It is always better to post example code as text rather than a screenshot. Nevertheless... Since the first element of x is -1 ...

9 månader ago | 0

Answered

Plotting .mat file

That mat file doesn't contain anything interesting to plot. load metro.mat whos AudioInfo

Plotting .mat file

That mat file doesn't contain anything interesting to plot. load metro.mat whos AudioInfo

9 månader ago | 0

Answered

Load .txt file into matrix form

That looks like a good candidate for readmatrix. mtx = readmatrix('X_deg_10.txt'); size(mtx)

Load .txt file into matrix form

That looks like a good candidate for readmatrix. mtx = readmatrix('X_deg_10.txt'); size(mtx)

9 månader ago | 0

| accepted

Answered

what's the index exceed error?

On the second pass through the for k = 1:20 loop, you are trying to access the second row of sig, but it only has one row.

what's the index exceed error?

On the second pass through the for k = 1:20 loop, you are trying to access the second row of sig, but it only has one row.

10 månader ago | 0

Answered

How can I import this data with a for loop?

You were very close. x = [3 5 7 9 11 12 14 15 16 17]; for i = 1:numel(x) fn = sprintf('PendulumTestData/TD%d/IK/HR_1.mot'...

How can I import this data with a for loop?

You were very close. x = [3 5 7 9 11 12 14 15 16 17]; for i = 1:numel(x) fn = sprintf('PendulumTestData/TD%d/IK/HR_1.mot'...

10 månader ago | 1

Answered

Adding zeros to a column vector to match a larger column vector

new_x= [x; zeros(length(y)-length(x), 1)]; % ^ ^ switch the arguments to zeros % use ...

Adding zeros to a column vector to match a larger column vector

new_x= [x; zeros(length(y)-length(x), 1)]; % ^ ^ switch the arguments to zeros % use ...

10 månader ago | 0

Answered

Plots: aligning categorical y-axis labels

% create dummy data y = [1,2,3]; x = [5,10,20]; err = 0.5*ones(size(y)); % draw plot figure(1) yyaxis right errorbar(x,...

Plots: aligning categorical y-axis labels

% create dummy data y = [1,2,3]; x = [5,10,20]; err = 0.5*ones(size(y)); % draw plot figure(1) yyaxis right errorbar(x,...

10 månader ago | 1

| accepted

Answered

Resolution of plot code errors

Why are you trying to do this with symbolic variables? It works using simple numeric variables. x = linspace(-5, 5, 500); y =...

Resolution of plot code errors

Why are you trying to do this with symbolic variables? It works using simple numeric variables. x = linspace(-5, 5, 500); y =...

10 månader ago | 0

| accepted

Answered

Issue with delete(obj)

Here are some modifications that should get you closer to what you wan't. Note the comments I've added in the code to point out...

Issue with delete(obj)

Here are some modifications that should get you closer to what you wan't. Note the comments I've added in the code to point out...

10 månader ago | 0

| accepted

Answered

for loop does not iterate

Array indices in Matlab must be positive integers (or logical). You are trying to us xroots, a vector of complex numbers as the...

for loop does not iterate

Array indices in Matlab must be positive integers (or logical). You are trying to us xroots, a vector of complex numbers as the...

10 månader ago | 0

Answered

How to save the result of each loop separately

Perhaps this (using a cell array)? y = [3 4]; for i = 1:length(y) x{i} = zeros(y(i), 2) end

How to save the result of each loop separately

Perhaps this (using a cell array)? y = [3 4]; for i = 1:length(y) x{i} = zeros(y(i), 2) end

10 månader ago | 1

Answered

How would I plot this and then achieve minimum and maximum.

x = 0:0.1:15; % y=(x)^3/3-11(x)^2/2+24x << you were missing multiplication operators * % and the powers need to be .^ (element...

How would I plot this and then achieve minimum and maximum.

x = 0:0.1:15; % y=(x)^3/3-11(x)^2/2+24x << you were missing multiplication operators * % and the powers need to be .^ (element...

10 månader ago | 0

| accepted

Answered

Hexadecimal Data Convert to signed int32

The hex2dec function assumes unsigned integer unless you tell it otherwise. You can either typecast the unsigned result to sign...

Hexadecimal Data Convert to signed int32

The hex2dec function assumes unsigned integer unless you tell it otherwise. You can either typecast the unsigned result to sign...

10 månader ago | 2

Answered

wildcard in filename for readtable does not work

You must call readtable with a valid filename for an existing file. It will not accept wildcards. You could use uigetfile to o...

wildcard in filename for readtable does not work

You must call readtable with a valid filename for an existing file. It will not accept wildcards. You could use uigetfile to o...

10 månader ago | 0

Answered

Indexing with min and numel

vector1 = 1:5 vector2 = 2:7 N = max(numel(vector1), numel(vector2)) [n,I] = min([numel(vector1),numel(vector2)]) I'm not sur...

Indexing with min and numel

vector1 = 1:5 vector2 = 2:7 N = max(numel(vector1), numel(vector2)) [n,I] = min([numel(vector1),numel(vector2)]) I'm not sur...

10 månader ago | 1

Answered

Code gets stuck loading when I try to run it.

In your SEGMENT 1 code you have this line where you are updating time (even though the comment says "Height Update"). I don't s...

Code gets stuck loading when I try to run it.

In your SEGMENT 1 code you have this line where you are updating time (even though the comment says "Height Update"). I don't s...

10 månader ago | 0

| accepted

Answered

how to plot signals on the same scale

For the green one, just subtract the first element of the capacity vector from the entire vector in your plot command. For exam...

how to plot signals on the same scale

For the green one, just subtract the first element of the capacity vector from the entire vector in your plot command. For exam...

10 månader ago | 1

Answered

how to obtain the data from the middle of the binary file using fread in MATLAB?

The second argument to the fread function is the size of the data to read, not an index, as you appear to be trying to use it. ...

how to obtain the data from the middle of the binary file using fread in MATLAB?

The second argument to the fread function is the size of the data to read, not an index, as you appear to be trying to use it. ...

10 månader ago | 0

Answered

how to import file?

You were pretty close. Here is one approach, converting your third columns to arrays instead of extracting them as tables with ...

how to import file?

You were pretty close. Here is one approach, converting your third columns to arrays instead of extracting them as tables with ...

10 månader ago | 0

Answered

While loop in function

Perhaps you meant to test the absolute value of epsilon_a? %known veriables syms x f(x) = exp(-x) - x; eqn = f(x) == 0; mat...

While loop in function

Perhaps you meant to test the absolute value of epsilon_a? %known veriables syms x f(x) = exp(-x) - x; eqn = f(x) == 0; mat...

10 månader ago | 0

Answered

Determine the relational operator in an expression

If you can rely on x always being on the left in your "test" expressions, you can test for y being on the left in the result ret...

Determine the relational operator in an expression

If you can rely on x always being on the left in your "test" expressions, you can test for y being on the left in the result ret...

10 månader ago | 0

Answered

I want to plot parameters and time , with influence three others paramaters , but i dont know how to plot

Note that, in Matlab, functions must be defined at the end of a script. Your code seems to run just fine after reordering it. ...

I want to plot parameters and time , with influence three others paramaters , but i dont know how to plot

Note that, in Matlab, functions must be defined at the end of a script. Your code seems to run just fine after reordering it. ...

10 månader ago | 0

Answered

Piecewise function graph help

Use logical indexing: L = 200; d = 10; s = 30; r1_max = 22.36; r2_max = 120.4; r = 0:200; F = zeros(size(r)); idx ...

Piecewise function graph help

Use logical indexing: L = 200; d = 10; s = 30; r1_max = 22.36; r2_max = 120.4; r = 0:200; F = zeros(size(r)); idx ...

10 månader ago | 0

Answered

how to zero pad a vector to have the same amount of data as a vector with more data?

Try this: %%% goal: to have the length of 'in' equal the length of 'verb' %%% define inputs [in, fs] = audioread('smash_...

how to zero pad a vector to have the same amount of data as a vector with more data?

Try this: %%% goal: to have the length of 'in' equal the length of 'verb' %%% define inputs [in, fs] = audioread('smash_...

10 månader ago | 1