Benjamin Großmann

Last seen: nästan 3 år ago | Active since 2016

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How can I save a UIaxes-figure in a Matlab-Web-App by button callback
You can use exportgraphics(obj,filename) to write a graphics object obj to filename on the web app server temporarily. Afterward...

ungefär 3 år ago | 0

Answered
What MATLAB functions are underappreciated?
arguments declaration within functions, introduced in 2019b, is very powerful (pythonic? ;-)) for writing generic and reusable f...

mer än 3 år ago | 0

Answered
Batch input for image preprocessing and KNN classification
You could do one of these three things (incomplete list): Use an imageDatastore object for your image collection and the ReadF...

mer än 3 år ago | 0

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how to plot 2D contour lines from the data file
contour(x, y, z) gives you the contour plot, z is the intensity value Contour plot of matrix - MATLAB contour EDIT: To create...

mer än 3 år ago | 0

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An Ohm's Law Calculator
*BACKGROUND / MOTIVATION:* Many important observations in math and science can be described by short, but powerful, equations...

mer än 3 år ago

Solved

Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

mer än 3 år ago

Answered
How to merge two matrixes by position vector?
Maybe this works. Hard to tell because the randi images are not so comparable to your image. Basic idea is to combine the coord...

mer än 3 år ago | 0

Answered
How to write a function that utilizes unit vectors?
If you can calculate the vector components (i.e. directions) than you only have to arrange them into an array. Suppose that you ...

mer än 3 år ago | 1

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Same code line works outside but not inside for loop.
The problem is, that the xlsx file contains protected spaces ( char(160) ) and you are comparing to normal spaces. Quick and v...

mer än 3 år ago | 0

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How to load and and open multiple files in one loop?
I do not see the definition of Ftarget1ref. Moreover, the variable "filename" is overwritten in every step of the for loop. I r...

mer än 3 år ago | 0

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Answered
Trying to build an app for user to define dimensions for a m*n grid that can tell the app to automatically make the dimensions of check boxes that were requested.
In app designer add two "edit field (numeric)", name the first one editN and the second one editM. Next, add a button, named "Bu...

mer än 3 år ago | 0

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how to add variable to array
Okay, maybe I understood the problem: If you have an array of PPG and ECG values and a constant fs you could do something like:...

mer än 3 år ago | 0

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show a digit matrix with segmentation line
matrix = [ 1 1 1 1 2 2 2 2; 1 1 1 2 2 2 2 2; 3 3 3 3 3 2 2 2; 3 3 3 3 3 3 3 3]; heatmap(matrix, 'Colormap', [1 0 0; ...

mer än 3 år ago | 0

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Finding the maximum time of ode45
The max function is able to output the index of the max value: [ymax, idx_max] = max(abs(y)) tmax = t(idx_max)

mer än 3 år ago | 0

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Question regarding strange outputs from histogram plot
If you do not provide any code, it is hard to tell what went wrong here. If I use your image, everything looks fine: imageURL =...

mer än 3 år ago | 0

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How can I save the output in a loop to an external text file?
There are a few problems inside your loop. In each step you set m equal to zero and increment it to one. So m is not growing as ...

mer än 3 år ago | 0

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How to plot this equation?
I assume that p is a dependent variable (pressure?), r is radius (spatial), and t is time (temporal). With this assumption, you ...

mer än 3 år ago | 0

Answered
Source and Target to simmetrical adjacency matrix
Use graph(source, target) for undirected graph or digraph(source, target) for directed graph to define a graph. I assume you hav...

mer än 3 år ago | 1

Answered
How to recover check box value?
get(chkBox, 'Value') as well as chkBox.Value should work with visible and invisible uifigures equally. % Create invisible uifig...

mer än 3 år ago | 1

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Removing values from plot and applying curve
You can remove values from an array by setting them to empty. Use logical indexing to address the values that you want to delete...

mer än 3 år ago | 0

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Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

mer än 3 år ago

Submitted

Merge PDF-Documents
Merges multiple pdf documents into one pdf document

mer än 3 år ago | 30 downloads |

Answered
Merging pdf without ghostscript
Four years later ... I contributed a tiny function to FEX to merge multiple pdfs without third party tools: mergePdfs - File Ex...

mer än 3 år ago | 4

Answered
Multiple plots to one pdf
Save each figure to one pdf-Document (using print, exportgraphics, ...) and try out my new FEX submission to merge the pdf-docu...

mer än 3 år ago | 0

Answered
SIMILAR COMMANDS FOR CREATING .TXT FILES
You can use dlmwrite to write an array into a text file and specify the delimiter or use fprintf to have more control about the ...

mer än 4 år ago | 0

Answered
Save a .FIG as .JPG (syntax error?)
To save a jpg with saveas() you have to give a proper figure handle (at least gcf) as first argument and change '.jpg' to 'jpeg'...

mer än 4 år ago | 1

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Channel

firstChannel

mer än 4 år ago

Submitted

RTP_SystemIdentification
App to create simulink systems based on series of first/second order numerators/denomitaors

mer än 4 år ago | 2 downloads |

Answered
deleting a part of a column - date to date??
clearvars close all clc % lets create the date column (I only use 1 hour with increment of 1 minute), but this should works...

mer än 4 år ago | 0

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How to create a confusion matrix.
Lets use the cifar10 demo included in Matlab for your question clearvars close all clc load('Cifar10Labels.mat','trueLabel...

mer än 4 år ago | 0

Benjamin Großmann

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