# Joe Vinciguerra

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Store values i Matrix from a loop

Depending on what exactly you're trying to do, put inside your for loop... 1) If you just want to store an array of i values yo...

2 months ago | 0

Get real axis-limits when using "inf"

[Edited to include the correction noted in the comment] From what I can tell, no, you can't get that information directly. But...

2 months ago | 2

| accepted

Get equation of the surface from curve fitting

To my knowledge you can't extract fit parameters from nonparametric fitting methods such as Lowess ( https://www.mathworks.com/h...

3 months ago | 0

Where can I find the units for the dataset carsmall?

Since the dataset is just used for calculation examples it's not important, and thus not clearly documented. But doing a quick s...

4 months ago | 0

Submitted

ExcelColorMap

Colormap matching the Excel default Conditional Formatting 3-Color Scale.

5 months ago | 8 downloads |

Creating 3D efficiency map using interpolation.

Here is your existing code: %B-spline interpolation eff96_spline(:,1) = spline(1:numel(eff96(:,1)), eff96(:,1), 1:0.1:numel(ef...

10 months ago | 1

| accepted

How to solve Error using + Arrays have incompatible sizes for this operation.

The arrays in the definition of either F(1) or F(2) (or both) are different sizes. For example: A = 1:5; B = 1:3; A + B If l...

10 months ago | 0

Euler's identity with angle in degrees

[EDIT: oops. converted in the wrong direction.] deg2rad will convert degrees to radians (https://www.mathworks.com/help/matlab/...

10 months ago | 0

Define data list with a determine data distribution

% Generate some random data that's similar to yours Data1 = sort(randi(1e4,[10,1])); % making sure the data is sorted Data2 = ...

10 months ago | 0

How to use 'tiledlayout' to make multiple figures in one MATLAB script.

A new figure shouldn't replace your old figure, unless you're not making a new figure first and only calling tiledlayout. From ...

10 months ago | 1

| accepted

Delete every nth element in array and increasing 1 NaN value per new row

Here's how I would do it: [EDIT: misunderstood the disired result. HERE'S how I would do it...] OriginalArray = 1:10; numRows...

10 months ago | 0

Creating 3d surf from 2d map

It's not hard to map a constant to a new column. Just do this: eff86(:,3) = 0.86; eff90(:,3) = 0.90; % ... etc. Then plot in...

10 months ago | 1

How can i read the line above a certain position?

Replace "file_name" with whatever the name of your file is: f = readlines(file_name); % read the file k = find(f == "$INSERT_...

10 months ago | 0

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Multiple lines in one figure

The is nothing innately wrong with your code. Check that the values within rdxlim and rdylim are appropriate for the dataset. ...

10 months ago | 0

Table Mean and Data Entry

Use stack() to restructure your tables, and combine them into a single stacked table like this: load("Workspace.mat") combined...

12 months ago | 0

| accepted

I have a set of data that I need to separate into unequal intervals in order to calculate the RMS value of these data (The data points are continuous over time)

Here is one way to do it based on your example: % import the data from your file using readmatrix(), but using your example: t...

12 months ago | 1

Problems with loops in matrix operations

It looks like you want b=0 in the first loop and b=b+1 in the second loop. Otherwise, when j=2 and b=0 the matrix1 subarray beco...

1 year ago | 0

Fill area between x-y data

xy = randn(100, 2); shp = alphaShape(xy, inf); area = shp.area; facets = shp.boundaryFacets; plot(shp, "LineStyle","none",...

1 year ago | 1

adding multiple arrays in a loop

Use S = sum(V, 1); So you end up like this: clc; clear; %% Signal Setup % Setting up sampling parameters Fs = 400e3; ...

1 year ago | 0

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Find the average between each pair of points in a matrix

I'm a little unclear on the specifics, but I think this is basically what you want: z = randi([-5 5],61,61,'double') zMeanV = ...

1 year ago | 1

| accepted

How do you replace row names with a column?

T = array2table(magic(3)); Names = {'A'; 'B'; 'C'}; T.Names = Names; T = movevars(T, "Names", "Before", "Var1"); % Here's ...

1 year ago | 1

How can I place the cancerous area on the CT image and separate it into ROI and non-ROI?

With the files you provided, and no special toolboxes: CT = imread("Body-CT.jpg"); % import the CT image ROI = imread("ROI.jpg...

1 year ago | 0

Numerical method MATLAB code

The x and y vectors for a plot need to be the same length. You were close, but looks like you had a typo. Try this: % Plot the ...

1 year ago | 0

How to fit 3D surface to datasets (excluding specific datapoints) without Curve Fitting Toolbox

I would recommend using either: rmmissing to remove NaN values, but be sure to remove the matching data points from your XY arr...

1 year ago | 0

| accepted

How to plot specific graph scale?

In addition to the comment from @Dyuman Joshi, for the y-axis you could also use ylim("tight") if you want to let Matlab figur...

1 year ago | 0

How to print variable and its value in the same line on Command Window

To my knowledge, there is way to modify such line breaks in the output of a command as you're describing. But, depending on your...

1 year ago | 0

| accepted

In this code, how can I add a time function for how long it takes to draw the graph?

tic plot(t,v) toc

1 year ago | 0

How can i create movable handles in Matlab graph to find data at the intersection of the handle and the graph?

If it fits your appication you could use stackedplot(): X = 0:0.1:4*pi(); Y = sin(X); stackedplot(X',Y', "DisplayLabels", "si...

1 year ago | 1

How to get data from a circular line on a 2D array in the anti-clockwise direction?

sz = 1024; % CCD array size A = peaks(sz); % some data from the CCD x0 = 512; % known origin X y0 = 512; % known origin Y ...

1 year ago | 1

| accepted