farzad
Last seen: 2 months ago
258 total contributions since 2014farzad's Badges
Publish your first comment or rating
Awarded to farzad on 09 Oct 2019
Contribute at least one answer each month for 3 consecutive months
Awarded to farzad on 20 Jul 2017
Accept 50 answers given by other contributors
Awarded to farzad on 20 Jul 2017
1 of your answers has been accepted
Awarded to farzad on 20 Jul 2017
Provide your first answer ever to someone else's question
Awarded to farzad on 20 Jul 2017
Solve a problem for the first time
Awarded to farzad on 10 Jan 2016
Question
Function to optimize doesn't converge in conjugate gradient and quasi newton
Hi all I have a function as : f(x) = x1^2 + x2^2 + 2x3^2 - x4^2 - 5x1 - 5x2 -21x3 + 7x4 +100 subject to x1^2 + x2 ^2+x3 ...
3 months ago | 0 answers | 0
0
answersQuestion
Generated filter reduces signal time
Hi All I desgined a filter with the following data, but it reduced the signal time to half , after filtering. is there a re...
6 months ago | 1 answer | 0
1
answerQuestion
How do I stretch the time of a signal locally ?
Hi All I have a signal that its time increment is 0.01 sec and the signal duration is 100 seconds. I want to stretch and incr...
6 months ago | 1 answer | 0
1
answerQuestion
How can I have the peaks of signal from rainflow count function
Hi All I wanted to have the peaks ( minimums and maximums) of a signal that are used to create the blocks in rainflow countin...
6 months ago | 0 answers | 0
0
answersQuestion
How to take the engineering FFT (magnitude spectrum scaled correctly) of Signal in Matlab?
Hi All the fft function in matlab gives a theoretical mathematical fft of the signal, and is not scaled to units and is real ...
7 months ago | 1 answer | 0
1
answerQuestion
User defined FFT function parameter not recognized
Hi All I am trying to use the FFT function explained in this link but when I use a nx2 signal and a scalar value for ScanRat...
7 months ago | 1 answer | 0
1
answerQuestion
Changing the frequency of an array does not work always
Hi All I have a time array , from which I first drop some elements, then change its frequency based on the input I give. the ...
7 months ago | 1 answer | 0
1
answerQuestion
Change the frequency of an array
Hi All I have an array (time) which will be combined with another and will create a signal. before I do the combination, I w...
7 months ago | 1 answer | 0
1
answerQuestion
Matlab app designer can not Save data from UIAxes due to size
Hi All I have some excel files , that are already saved by a MATLAB analysis, and now I am reading them in app designer UIAxe...
7 months ago | 0 answers | 0
0
answersQuestion
How to read every i data in the UIAXES plotted data ?
Hi All I have got a plot in my aap designer window, and after plotting some 2D data on it, I want to read and save only some ...
7 months ago | 0 answers | 0
0
answersQuestion
Changing an EditField Value in app designer twice
Hi All I plot a diagram using a push button and to give its axis values as user input, I use EditField to input the axis limi...
7 months ago | 0 answers | 0
0
answersQuestion
How to remove file extension when using ugetfile in app designer?
Hi All I use [filename,pathname] = uigetfile('*.xlsx');% add ur extension post period within parathesis. fullfilename = ...
7 months ago | 1 answer | 0
1
answerQuestion
Appending a table to another index error
Hi all I am appending a table to another one during a loop, every time I calculate the first one in each cycle. this is th...
7 months ago | 1 answer | 0
1
answerQuestion
How to clear the compile to stand-alone history?
Hi All I am trying to compile my file to stand alone via app designer. but since I am doing it many times, I am noticing that...
8 months ago | 0 answers | 0
0
answersQuestion
app designer does not get the value from edit field in panel
Hi All I have an edit field that is inside a panel. It seems that when I call the value with app.variable , it can not be rea...
9 months ago | 1 answer | 0
1
answerQuestion
How to dynamically define limits for multiple plots from user input in app designer?
Hi All I want to have a sort of While loop in my app designer, that untill app doesn't receive OK from the user, it prompts the...
9 months ago | 1 answer | 0
1
answerQuestion
How to dynamically define limits forplot from user input in app designer?
Hi All I want to have a sort of While loop in my app designer, that untill app doesn't receive OK from the user, it prompts the...
11 months ago | 1 answer | 0
1
answerQuestion
How to dynamically define limits forplot from user input ?
Hi All I want to have a sort of While loop, that untill Matlab doesn't receive OK from the user, it prompts the axis limits f...
11 months ago | 1 answer | 0
1
answerQuestion
Can't append two large matrices due to limit in Matlab
Hello I need to append two time series to eachother, one after the other one, but one is 875520x1 double and the other is 78...
11 months ago | 1 answer | 0
1
answerQuestion
How do I convert a linear scale array to a logarithmic without getting negative values?
Hi All I need to plot ( bar plot) values, and on the X axis , I want to convert them to logarithmic, but the values <1 become n...
11 months ago | 1 answer | 0
1
answerQuestion
How do I create an amplitude changing sweep signal?
Hi All I need to create a sinusoidal sweep signal , with a constant frequency but increasing amplitude from A1 to A2, how do I ...
12 months ago | 0 answers | 0
0
answersQuestion
Why isn't there a huge difference for reading time numerical Excel files between readtable, xlsread and readmatrix?
Hi All I did a benchmarking between readtable, xlsread, and readmatrix, knowing that xlsread is somehow deprecated. I had a rea...
1 year ago | 0 answers | 0
0
answersQuestion
How can I plot a helix that its axis is not straight but bended ?
Hi All is there a way to plot a helix with its axis sweeped along a profile ? which is not striaght, like: if the top center ...
1 year ago | 0 answers | 0
0
answersQuestion
How do I make a button for my app designer to open another app window to get inputs for the code?
Hi All I have an app designer window that is too full, so when I press a button , I need that first another window opens that...
1 year ago | 0 answers | 0
0
answersQuestion
makeDOMCompilable() DOES NOT resolve compiling application with report generator
Hi All As Matlab help has suggested, I used this command, BUT after Compiliing, the button to generate the report DOES NOT work...
1 year ago | 2 answers | 0
2
answersQuestion
using makeDOMCompilable(); to compile my application cause its other functions not work
Hi All since I have a report generator on one of my application's buttons, I have to use makeDOMCompilable(); command but after...
1 year ago | 0 answers | 0
0
answersQuestion
How can I make Matlab install the powerpoint Template to compiled installation folder and always read from there?
Hi All I need to compile my application that generates a powerpoint report, so far I know how to direct my code to the installa...
1 year ago | 0 answers | 0
0
answersQuestion
How to append multiple signals and take the total rainflow histogram of the total signal ?
Hi All I want to know the most simple and fastest way to append multiple signals together and take a rainflow histogram of th...
1 year ago | 0 answers | 0
0
answersQuestion
Matlab can not run add layout lines in powerpoint and gives strange error
Hi All just after some successfull runnings of my code, and simply adding more functions, now I am getting a new strange erro...
1 year ago | 0 answers | 0
0
answersQuestion
Why is Picture placeholder formatting (Style) in saving images to powerpoint ignored?
Hi All with the Style property for the Picture, I am unable to place the Picture in the middle of the place holder. Is there ...
1 year ago | 0 answers | 0
0
answers
Select a Web Site
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
Select web siteYou can also select a web site from the following list:
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)