# Benjamin

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**Content Feed**

Question about using ismembertol function

Note that 10e-3 = 1e-2. Maybe that is the problem A=[11538.0882247944, 21569.4133365453] B=[11537.6120343925, 21611.5704794796...

19 hours ago | 0

How to filter data from columns and extract corresponding x-values in excel files?

Here are some ways to do this, depending on exactly what you want to do. "Filtering" on column B only: % data = xlsread('Sampl...

21 hours ago | 1

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Delete m consecutive rows every n rows

Here's one way to do it, with a matrix. The logic would be the same for a table. m = 6; n = 24; N = 87; data = (1:N).'+(0:...

22 hours ago | 1

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How to use variable names/strings in a For cycle

Here is how you can do it: matrix = magic(5); for i = 1:5 eval(['B' num2str(i) '=matrix(:,' num2str(i) ');']); end wh...

22 hours ago | 0

how to generate ramp signals at different sampling frequencies.

fs1 = 10; % sampling frequency 10 Hz (very low, so the individual samples can be seen in the plot) t1 = -1:1/fs1:1; r1 = t1.*(...

22 hours ago | 0

Incorrect number of input arguments

It doesn't make sense to pass your legend to the title() function. You can remove it: lgd_1 = legend(app.UIAxes,'dTdhw(°C)','VD...

23 hours ago | 0

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Research of an element in an array

Perhaps you mean to do this: disp ('Ricerca elemento X nel vettore somma S') X=input ('X'); K = find(S==X); if ~isempty(K) ...

2 days ago | 0

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How to create an output excel file after using uitgetfile to select multiple files?

Collect each file's "Sum" in a cell array inside the loop, and then write it to file after the loop: [file_list,path_name] = ui...

2 days ago | 0

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Auto Detect different file types?

Since the only difference between the way the two file types are read with readtext() is the delimiter, you can try different de...

2 days ago | 1

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Reading all values as a string from excel file

Maybe you can just convert the decimal times to datetimes using the datetime() function, after reading them in. now() datetime...

3 days ago | 0

Crop image from imagesc, after creating the image.

You can set the axes YLim to the relevant part. In your case: set(gca(),'YLim',[-1 0]);

3 days ago | 1

How can I add string character description in the X axes instead of numbers? Is there a way to enhancer this code?

Something like this? clear all; %get rid of everything in memory close all; %close all open figures %X axis Test_Cases = { '...

3 days ago | 0

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How to perform division correctly?

It's not because of division, per se, but because of floating-point arithmetic. No division here: a = 3*0.3; b = 0.9; a ==...

3 days ago | 0

Delete Output_Fcn in GUI

The outputFcn is for returning a handle to your figure (and additional outputs if you like), so you can call your m-file like th...

3 days ago | 0

How to draw voronoi diagram population of country(Numerical one axis data) with name of country with Excel data.

Voronoi diagram is 2D. I don't know where you're going to get a second numeric axis. Using an index isn't very interesting. vor...

3 days ago | 0

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plotting a 2D line plot using data with 3 variables

Is something like this what you want to do? % 100 depth values: depth = 100:199; % 14 sediment diameter values: diameter = l...

3 days ago | 0

Error using reshape function when trying to split columns into equally sized columns in new cell array

The N's are not being calculated correctly, because this line is incorrect: N = block_size*ceil(numel(participants{j},1)/block_...

3 days ago | 1

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How to find the mode of an array?

One thing you can do is set your inner loop ('b' loop) to start at the index one after the current value of a. This way you neve...

3 days ago | 0

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Organize the logic to transform given matrix into required

A = [1 5 4 5 7; 2 5 5 5 8; 3 5 6 5 9] B = A.'; % transpose B = B(1:2:end,:) % take every alternate row, starting with 1st Or:...

3 days ago | 0

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How to extract data for some particular region from 1 dimenational satellite data (spatial)

load('sat_data.mat') whos() w idx = inpolygon(lon,lat,w.X,w.Y); scatter3(lon(idx),lat(idx),xch4(idx))

3 days ago | 0

Organize the logic to transform given matrix into required:

A = reshape(1:9,3,[]).' B = triu(A); B(1:size(A,1)+1:end) = -1

3 days ago | 0

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Replacing text with value

A1 = 'A':'O' A2 = 1:15 r = 'AE'; [~,idx] = ismember(r,A1); s = A2(idx)

3 days ago | 0

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can deployed application run the 'run' function?

Unfortunately, run() is not supported in deployed applications. <https://www.mathworks.com/help/compiler/unsupported-function...

3 days ago | 0

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How to write struct back to h5 file

This is a partial answer, at best. But here's how you can modify the 'index' member of the 'table' dataset in that .h5 file, und...

3 days ago | 0

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How to quickly "plug in" numerical values into symbolic equations to get a numerical result

You can use subs() to do that. It will evaluate yt1 and give you a symbolic value, on which you can use double() to convert to a...

4 days ago | 0

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I want to create a matrix combining 2 matrices. The new one must have from the diagonal up de elements of matrix A and from the diagonal down the elements of matrix B. Help

You can use triu() and tril() to get upper- and lower-triangular matrices, respectively, and logical indexing to combine them: ...

4 days ago | 1

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Why my arithmetic function not working ?

From the documentation for im2double(): "im2double rescales the output from integer data types to the range [0, 1]." So if your...

4 days ago | 0

How can I rewrite this in a simple short code

EA = abs([1 (MID(2:end)-MID(1:end-1))./MID(2:end)].');

5 days ago | 2

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How i can convert from hex numbers to charter ?

hexStr = ['12';'A6';'36';'36';'F6';'04';'EA';'F6';'4E';'36';'26']; char(bin2dec(fliplr(dec2bin(hex2dec(hexStr),8)))).'

5 days ago | 1

Preallocate array of unknown size within cell

One thing you might try is to make posReferences a matrix of size numel(eventPositions) by r, so that it is pre-allocated to hav...

5 days ago | 1