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Alex Perrakis


Last seen: meer dan een jaar ago |  Active since 2021

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My App does not plot the data i read, why?
Hello Dear Matlab Community, i am trying to develope a GUI with the help of MATLBA app designer and i am hopelessly stuck, i do...

meer dan een jaar ago | 1 answer | 0

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answer

Question


How do i read a line after a word in a csv file
Dear Matlab Community, i have the following question,i have a .csv (attached) file which contains multiple data, before every d...

meer dan een jaar ago | 1 answer | 0

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answer

Question


Extract Values from String with sscanf
Hallo Guys and Gals, i have following code: clear close all addpath(genpath('../../Functions')) %Parameters for GRR apprai...

bijna 2 jaar ago | 0 answers | 0

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Question


Read the third column of a .csv file
Hello Guys and Girls, i have following .csv file and i am trying to import only the 3rd column which is a temperature. The prob...

bijna 2 jaar ago | 2 answers | 0

2

answers

Question


Read csv file 2 and 3rd row and store them in different matrices
Hello Guys and Girls, i have a .csv file which i attach and i want to read the first row and put it in a matrix and the second ...

bijna 2 jaar ago | 1 answer | 0

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Question


Read csv in multiple directories in a loop
Hello People, i have written a function to read a specific type fo .csv measurement data, it's always called rawdata.csv , my pr...

ongeveer 2 jaar ago | 1 answer | 0

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Question


read csv file with a lot of columns.
Hello guys, i have the uploaded .csv file and i would like to only read the numbers that start with 0. how do i that? i tried 'r...

ongeveer 2 jaar ago | 2 answers | 0

2

answers

Question


Spatial Calibration of a graph, with demo
Hello, i got this graph and i would like to calibrate the pixels to mm, i also got this demo from another user of the forum, i ...

ongeveer 2 jaar ago | 1 answer | 0

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Question


Remove object from plot
Hello People, i have following code pic01=imread("1.tiff"); pic1=im2gray(pic01); i=1; boundaries=[]; for i=3:25:222; pic05...

meer dan 2 jaar ago | 1 answer | 0

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Question


Find Periodicity of a plot to do Fourier Transformation
Hello Guys, i have following code, and which produces some plots, i would like to find the periodicity of the plot to do a Fouri...

meer dan 2 jaar ago | 0 answers | 0

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answers

Question


Do not plot the shape in the middle and polar transformation
Hello Guys, i have the above seen plot and i would like not to plot the shape seen within the circle and the do a polar tranf...

meer dan 2 jaar ago | 1 answer | 0

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answer

Question


Create different outline colors for different times
Hello, i have written following code, which creates an Image of outlines of some photos i took for my project, The question i...

meer dan 2 jaar ago | 1 answer | 0

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Question


Creat a loop for Image processing
Hello, i have the following code, is there any way to rewrite it to create a loop so that it subtracts the 1st photo from 2nd un...

meer dan 2 jaar ago | 2 answers | 0

2

answers

Question


Sort a Matrix by the first column connecting the row elements so that the elements of the second column 'follow' those of the first.
Hello Guys, i have a two column Matrix, where the first column is the diameter of some particles and the second column is Extic...

meer dan 2 jaar ago | 1 answer | 0

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Question


Sorting Elements of af 3D matrix in another Matrix with a condition
x1=0.05; x2=0.1; B=zeros(428,29,2); k=1; i=1; for j=1:29; %columns if x2>E_D(i,j,1)& E_D(i,j,1)>x1; B(i,k,:)=E_D(...

meer dan 2 jaar ago | 1 answer | 0

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Question


I would like to find elements of a matrix that fulfill a condition but after every loop the condition is changing.
Hello, i have a 428x29 matrix of particle diameters and i would like to sort these diametes in classes beginning from 0.05 to 0...

meer dan 2 jaar ago | 1 answer | 0

1

answer

Question


Isolate the outline of a shape.
Hello i have through binarizing and using bwpropfilt i have got the attached image, my question is : does anyone have an idea ho...

meer dan 2 jaar ago | 1 answer | 0

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