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Alexander


Retiree

Last seen: 2 months ago |  Active since 2022

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Programming Languages:
C
Spoken Languages:
German
Pronouns:
He/him

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  • 6 Month Streak
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  • Knowledgeable Level 2
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Answered
How to find delay of signal sample
Maybe this would be helpful: https://www.mathworks.com/matlabcentral/answers/2107496-how-to-find-delay-of-signal-sample @Manik...

7 months ago | 0

Answered
Reading multiple .txt files and plotting a graph
My ancient approach: clear; fid = fopen('S1.txt','r'); fgetl(fid);fgetl(fid); Titel = fgetl(fid) for(ii=1:44) dyTxt = ...

7 months ago | 1

Answered
How can I change the decimal separator when exporting to Excel?
Excel uses the operating system defaults. To change this open a file in Excel and click on the windows butten (top left). Go to ...

8 months ago | 0

Answered
How to use an output from on file as input in another file.
Do you mean something like this: function [S,V]=enzymeLeastSquares(r,g); S=sum(r,8) V=sum(g,8) and the calling function migh...

8 months ago | 1

Answered
Cutting (dividing) a matrix into a specific number of rows.
Just another approach. Simple but it might be helpful. I assume in the first half of your matrix are x or t, in the second half ...

8 months ago | 1

Answered
Can I smoothen the cdfplot() result?
@Mathieu NOE, thank you for remaindig me. This question kept nagging me, but I just forgotten it. Here are some rudimentary apro...

8 months ago | 1

| accepted

Answered
how to open excel files and write data?
Just use "xlswrite(FILE,ARRAY,SHEET,RANGE)" in your loop four times with the appropriate file and sheet name. Of cause you have ...

8 months ago | 0

Answered
Loop for Concatenating files *.CSV
I'm really not sure if I understood you correctly, but this might be what you want: load Folder for ii = 1:10 dy = iwant{...

8 months ago | 0

Answered
how to enter exponential multiplication with a time dependent array
Do you mean something like that: t=0:0.06:3; fa=10*exp(-5*t) plot(t,fa)

9 months ago | 0

Answered
Plot Piecewise function graph
You should change axis([-4\pi 4\pi -4 4]); to axis([-4*pi 4*pi -4 4]); in the first step. Than you can see your complete f...

9 months ago | 0

Answered
Graphing the sine graph
t = linspace(0,2*pi,1000); y = sin(t).^2; plot(t,y);

9 months ago | 0

| accepted

Answered
How to plot polynomial in matlab
Some homework assistance and solution: x = linspace(0,0.8,1000); y = 150*x - 400*x.^2 + 500*x.^3; plot(x,y)

9 months ago | 0

Answered
How to find transfer function to a second order ODE having a constant term?
Are you looking for something like this: AnregeAmpl = 1; % mm fmax = 20; % Hz f=0.1:0.1:fmax; ...

9 months ago | 0

Answered
normalize(A,"range") function throwing error of "Too many input arguments." in Matlab 2023a.
Move "Q:\matlab-toolbox\geom2d" with pathtool to the bottom and save. If it is in your startup file apply -end like this: addpa...

9 months ago | 0

Answered
Need to fit a curve to some data points
Seems to be an exponetial behavior. Use lsqcurvefit to approximate a curve according your needs. My code: dXdata = [1 2 100] d...

9 months ago | 0

Answered
Using continous time in Matlab editor
Maybe something simple like that: V1 = 18; % Input voltage R = 7.2; ...

9 months ago | 0

Answered
How to find zeros of a function?
If it's not a function but meassured data I would go like this in a first try: x = -3.55:0.0001:3.55; % assuming 10 kHz sample ...

9 months ago | 1

Answered
Arduino MATLAB sin function loss of resolution with data
You should define a sample rate in your program, e.g.: const unsigned long AbtastRate = 60000; // 60000 entspricht einer Minute...

9 months ago | 0

Answered
How to find out the amplitude and duration of a sine wave of different amplitudes?
Here is another approach as promissed above: clear;clf;commandwindow; fs=1000; % sampling rate [Hz] ts=1/fs;...

9 months ago | 0

Answered
How to find out the amplitude and duration of a sine wave of different amplitudes?
Very easy approach with "movmax": clear;clf; fs=1000; % sampling rate [Hz] ts=1/fs; % sampl...

9 months ago | 0

Answered
how to use the hanning window to smooth the photon signal
I can't see this effect you mentioned. smooth_data remains the same size as data (I assume data = Photoncounts1). What do you ex...

9 months ago | 0

Answered
How can I convert indices into a binary matrix?
Maybe something like the following? fid = fopen('Item.txt'); A = []; while(~feof(fid)) syLine = fgetl(fid); dyA = z...

9 months ago | 1

Answered
How Do I Have my Program Accept a Negative Year as Valid
datetime(-1,1,1) answeres 01-Jan--0001 which is correct.

9 months ago | 0

Answered
Algorythm for Average of excel data
A very easy approach (as allways): %Algorythm for Average of excel data %https://de.mathworks.com/matlabcentral/answers/208248...

9 months ago | 0

Answered
Import CSV from nth row. n is variable across files
I think (the specialists here might correct me) you don't get a ready to use function, that solves your problem. Here a suggesti...

9 months ago | 0

Answered
How to convert 30s daily data into hourly data using MATLAB?
Hi Aiswarya, I also can only assume your intention. My solution would be: clear data = dlmread('sample_hourly_shlg_testdata_E...

11 months ago | 0

Question


In between the years, a PISA question (nothing essential): The last digit of 7^190
Last digit of 7^190, I thought a simple question if you have Matlab. But fprintf('%f\n',7.0^190.0) reports 4 as last digit, bu...

11 months ago | 1 answer | 0

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answer

Answered
Create 30 minute bins by reading time stamps
Whers is this file Data.xlsx from? I think someone has corrupted the "Calculated time" column. In this column is a mixture of fo...

11 months ago | 0

Answered
How to get a plot out of a .csv data from a sensor?
My old-fashioned solution, not "fine arts", but works. clear; close all; Lines = char(zeros(30000,40)); % Could be any number ...

12 months ago | 1

Answered
Convert a datetime to string
Use mm instead of MM. checkdate = datestr(datelist{1,d},'yyyy_mm_dd') should do the work. As I have not your datelist,...

1 year ago | 0

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