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**Feeds**

Plots coming out weird

You likely have pre-existing X and Y variables in your workspace, which are being plotted in their entirety. Since the code show...

19 hours ago | 0

Separating and indexing (k-wave) datasets to different planes/coordinates

One way to separate the the data for the two sensors is using the following approach % Extraer resultados de sensor1 y sensor2 ...

1 day ago | 0

assign the fields of a structure correctly

Assuming the set of table variable names is the same between d1 and app.Preset_UITable.Data (but potentially in a different orde...

1 day ago | 1

| accepted

Why converting from Spherical to Cartesian using the command "sph2cart" gives different values than converting it manually by writing the equations of each coordinate?

Assuming theta is azimuth and phi is elevation, your equations would be (from the documentation): x = r .* cos(phi) .* cos(thet...

3 days ago | 1

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Turning a 1x3001 array into a 14x3001 array to make two things the same size and perform math on them...

You don't have to explicitly repeat the 1x3001 row vector 14 times in order to add it to the 14x3001 matrix. Here's an example ...

3 days ago | 0

| accepted

how to make figure full axes

Setting the figure's WindowState property to 'fullscreen' may achieve the desired effect, e.g.: fig = figure('Units', 'pixe...

4 days ago | 1

| accepted

Why do I get "Array indices must be positive integers or logical values" error ?

When i is 100, Per(100-i) is Per(0), which causes the error since 0 is not a valid index in MATLAB.

4 days ago | 2

Why does Tiledlayout return error when using a figure with datetime as x-axis?

datetime x-axis is supported in tiledlayout. Here's an example: x = datetime(2024,9,3):hours(1):datetime(2024,9,5); y = rand(s...

4 days ago | 1

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How to use different colormaps for different function in mesh plot.

Here is one way: % data x = linspace(-3,3,100); y = linspace(0,3,100); [X,Y] = meshgrid(x,y); Rho2 = X.*X + Y.*Y; Z = exp(-...

4 days ago | 1

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I need help with fixing my filtering for EMG signals

This will set the maximum element of normalized_EMG to 100 and scale all other elements accordingly mvc_peak = max(filtered_sig...

5 days ago | 0

Plot multiple graphs on the figure using plot(y,linespec)

Use hold on y_vec_1 = rand(1,10); y_vec_2 = rand(1,15); y_vec_3 = rand(1,20); figure(); plot(y_vec_1,'*-r');%gz; hold on...

5 days ago | 0

2×0 empty double matrix

"why is SAB21 returning " 2×0 empty double matrix"?" Because the expression 2:1 evaluates to an empty vector. SAB21 = SB (3:4,...

5 days ago | 0

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Can I used Unique to find unique x,y,z coordinates in table data?

load('matlab.mat') T = summaryTable1 [g_idx,result] = findgroups(T(:,[1 2 3])); vars_1 = {'meanZm','meanGAIpred'}; vars_0 = ...

5 days ago | 0

Import mutilple excel files and save then individually as matlab tables, and finally synchronize the timetables

% specify source and destination directories source_dir = 'C:\Wind_Data_Rows_Deleted_2023\test'; dest_dir = 'C:\Wind_Forecast_...

5 days ago | 0

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Set current axes by using axes() is not wokring

To plot like that in a uifigure, make the uifigure's HandleVisibility 'on' (it's 'off' by default), e.g.: app.UIFigure.HandleVi...

5 days ago | 0

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Update UIAxes in App1 after computation in App2

% Button pushed function: GotoApp2Button function GotoApp2ButtonPushed(app, event) app.app1handle = findall(0, 'Name', 'My...

6 days ago | 0

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Storage columns of data from excel sheet on matlab table cell

"I want to create a matlab table" but you show a cell array. These methods create a cell array as you describe: Method 1: T = ...

6 days ago | 1

| accepted

Unable to use title() for image.

You have a variable called title preventing you from using the title function. Clear it: clear title and then run you...

7 days ago | 1

| accepted

How to Remove Specific Rows in a Multi-Column Array Based on One Column's Values

data = [1:10; 0.3*rand(1,10)].' idx = data(:,2) < 0.1; data(idx,:) = [] The removal of the rows could also effectively be d...

10 days ago | 0

Count number of nucleotide bases (letters) in file with multiple entries

% this is what the attached file contains: type file.txt data = readlines('file.txt'); ID = regexp(data(1:2:end),'>(.*?):...

10 days ago | 0

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A simple/efficient way to add one additional xtick, and the corresponding xticklabel, to the existing xticks and xticklabels

plot(1:50) new_tick = 5; ax = gca(); ax.XTick = unique([ax.XTick new_tick]);

10 days ago | 1

| accepted

Logging cmd in multiple diary

You can restore diary logging to log1.txt after logger2 finishes: logger1(); function logger1() logName = fullfile(pwd,...

11 days ago | 0

I am having trouble constructing a 'for loop'. Can you suggest me on how to modify it?

One thing I notice is that (-A)^i-1 should be (-A)^(i-1) EDIT: that's now corrected in the question.

11 days ago | 1

| accepted

Reading columns from a poorly-formatted text file

This file looks like a fixed-width file, but it's not quite, because lines 68 and 69 differ in format from the other lines. dbt...

11 days ago | 0

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How to change Fontcolor xticks and yticks

Assuming you just want to change the color of the x-tick and y-tick labels: plot(1:10) ax = gca(); ax.XAxis.TickLabelColor ...

11 days ago | 0

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Increasing the line width of box plot whiskers

findobj('Tag','boxplot') finds all* objects whose Tag is 'boxplot'. This includes any object whose Tag is 'boxplot' anywhere in ...

11 days ago | 0

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I have some code that keeps failing to open and read two csv files out of four. Can someone explain what is wrong with either the code or the csv files

When processing Sample3.csv, post_fun removes every row of table T because index, defined here index = isnan(disp) | isnan(forc...

12 days ago | 0

keyPressFcn on a figure: wait untill the user is done annotating.

Here is a code structure that you can run and add to. n_fig = 2; keyInfo = cell(1,n_fig); ii = 1; while ii <= n_fig ...

13 days ago | 0

Scatter data to smooth line plot

load U_Au_T100 XY = Pos_UI1; scatter(XY(:,1),XY(:,2)) C = mean(XY,1); XY0 = XY-C; th = atan2(XY0(:,2),XY0(:,1)); [~,id...

13 days ago | 1

| accepted

I need to compare elements that come from different tables

EQID_inter is a numeric array. Bnames_inter.Level is a cell array (whose first element contains the character vector '6000038')...

13 days ago | 0

| accepted