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Awarded to Nik Rocky on 06 Jul 2020
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Question
Preallocating and filling long array with shorter arrays
Hello dear community, I have a question: If I want to fll an array with single values using preallocation, I do: input = zero...
7 days ago | 1 answer | 0
1
answerQuestion
Store matrixes with variable dimensions to stereo WAVE files
Hello dear experts, I want to write IQ data from radio to stereo wav-File (use WAVE like datacontainer). So I (real part) to o...
6 months ago | 0 answers | 0
0
answersHow to store complex double data to WAV?
I found a solution by spliting to real ang imag, save it in two different wav-files. % split data to real and imag data_I = ...
6 months ago | 0
Question
How to store complex double data to WAV?
Hello together, I receive IQ data (real and imaginary values) from radio and save it to variable "IQ_data_before_write". The...
6 months ago | 1 answer | 0
1
answerQuestion
Why do I get additional frequencies using standard audiowrite BitsPerSample values?
Hello, I want to write spectral data to wav file and read it again. If I do some example with two sine waves, after writing+...
7 months ago | 1 answer | 0
1
answerQuestion
How to display data saved with getSpectrumData? Why are saved values different from input?
Hello dear community, in my example code I create two sinus signals, display it with spectrumAnalyzer and save data to tables ...
7 months ago | 0 answers | 0
0
answers"Invalid MEX-file" error while setup of "Communications Toolbox Support Package for USRP Radio" Add-on
Hello, I solve a Problem. Uninstall UHD package Open Dependency Walker inside of MATLAB: ! D:\path\to\dependencywalker\de...
8 months ago | 1
| accepted
Question
"Invalid MEX-file" error while setup of "Communications Toolbox Support Package for USRP Radio" Add-on
Hello all, I want to use my Ettus research USRP B210 with Communications Toolbox Support Package for USRP Radio Addon. Whil...
8 months ago | 3 answers | 2
3
answersQuestion
Compare values in two matrix with different length by time in first row
Hello, I have one aim to do comparison of values in two matrices without using for loops (array are huge). I show you exampl...
2 years ago | 1 answer | 0
1
answerQuestion
Convert cell array to matrix with two columns and sort rows by first column value
Hello, I have a large Cell array with multiple cells. Every these cells has n-rows and two columns. I want to convert this ce...
2 years ago | 2 answers | 0
2
answersQuestion
How to remove outliers without using filter?
Hello, I have a measure results and there are some random outliers with a big negative or positive values (jitter of uC), ther...
2 years ago | 1 answer | 0
1
answerQuestion
Shift array to left or right, keep length and feel zero empty area
Hello, I have an array: A = [1 2 3 4 5 6 7 8 9]; I want create B array from A B = [0 0 1 2 3 4 5 6 7]; or B = [3 4 5 6 7...
2 years ago | 1 answer | 0
1
answerChange output resolution by export_fig
I found it: export_fig('-m3', Full_Plot_Path_Name)
2 years ago | 0
| accepted
Question
Change output resolution by export_fig
Hello, I'm trying to save my diagrams with png higher resolution, but I can't find a right code. My output looks so: expor...
2 years ago | 2 answers | 0
2
answersQuestion
Optimizing for loops by searching some data in cell arrays
Hello, I'm searching in multiple cell-array for some data: for traj_cnt = 1:size(Traj_interpl,2) %for every Traj-Cell ...
2 years ago | 1 answer | 0
1
answerQuestion
load multiple files in right order
Hello, I'm loading multiple mat-files in workspace, the names of files are: Schweben_Meg_2_2-01_SNR_-030_PLL.mat Schweben_Meg...
2 years ago | 1 answer | 0
1
answerwrong number of rows of cell array using length()-function
If i want to build it in my for-loop, what is the nice way to do it? Old part of code for traj_cnt = 1:length(Traj_interpl) ...
2 years ago | 0
Question
wrong number of rows of cell array using length()-function
Hello dear community, I get some error by using length in one Cell-Array on Traj_interpl{1,209}: for traj_cnt = 1:length(Traj_...
2 years ago | 4 answers | 0
4
answersQuestion
How to avoid statistical outliers under special speed (acceleration and deceleration)
Hello dear community, I use and plot some measure data (rotating speed of 4 motors). The measures work great up to speed of 30-...
2 years ago | 1 answer | 0
1
answerQuestion
change text colour in foreground of line plot
Hello, how can I change text color above line plot? It is possible? Its not about changin whole text color, its about just th...
2 years ago | 2 answers | 0
2
answersQuestion
Difference between errorbar and errorbarxy (function)
Hello, I'm calculating and plotting a mean-Values and standard deviation: If I plot it via errorbar, I get: .... errorbar(M1...
2 years ago | 1 answer | 0
1
answerQuestion
Better way to display lablepoints in ROC-Curve
Hello, next to data plot I print lablepoint with SNR-values. How can I display it nicer, maybe to change a label order, or colo...
2 years ago | 0 answers | 0
0
answersQuestion
Lablepoints create name with variable
Hello, simple question: SNR = -30 -15 0 15 30 I want: SNR_Name = 'SNR = -30' 'SNR = -15'...... to put ...
2 years ago | 1 answer | 0
1
answerStandard deviation values are to big
Oh, mea culpa - I see, standard deviation bars are not wrong - the results from different measures are really far away from each...
2 years ago | 0
Question
Standard deviation values are to big
Hello, the measures on first pic is a dataset: later. I change my script and now I create a mean values (between groups 0.5m...
2 years ago | 1 answer | 0
1
answerQuestion
save matrix in loop to 3D matrix (storage all inkomming matrix)
Hello, I read multiple .mat-files with matrix M x-y-axis (5x2doubles) and have to save it. I think, the better way is to create...
2 years ago | 1 answer | 0
1
answerQuestion
Avoid lower case in legend by plotting legend with 'DisplayName'
Hello, I have again a similar Problem, but in this case I can't separate legend, and : 'Interpreter','none' is here also not w...
2 years ago | 2 answers | 0
2
answersQuestion
Order of filenames is wrong
Hello, I have save some measures in loop with SNR = 30 SNR_steps = 15 -SNR:SNR_steps:SNR ans = -30 -15 0 15 3...
2 years ago | 1 answer | 0
1
answerQuestion
mean of two matrix groups split by name
Hello, I have two groups of similar measures. Every file .mat with matrix M will be loaded from in loop and I want to make a me...
2 years ago | 0 answers | 0
0
answersQuestion
export_fig stretch figure making unreadable
Hello, I'm plotting many data points and want save it using export_fit function. It saves this like: and I want to have it...
2 years ago | 1 answer | 0
1
answer
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