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Ramesh Bala


Last seen: 2 días ago Active since 2018

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Question


Getting error as array indices must be positive integers or logical values in slope calculation.
My R matrix is 512x43 and I would like to calculate slope by central diff from row wise values. It shows logical values error ?...

3 meses ago | 2 answers | 0

2

answers

Question


Stacked plot /waterfall plots to visulaise figures
I have in total 6 signals and would like to see all in a single plot.Since all having same X axis and Y axis (shall normalise it...

3 meses ago | 1 answer | 0

1

answer

Question


App designer : Unable to read imported data to table of 7 columns
I tried to import a text file and then show it in a table of 101 rows x 7 columns ( data is like that) using push button in App...

3 meses ago | 0 answers | 0

0

answers

Question


Get values of the particular line from surf plot
I'm intersted to get all the values of the line 2- curve - marked in figure load('jj.mat'); A1 = jj; figure A1(A1>0.05) =...

3 meses ago | 1 answer | 0

1

answer

Question


Call contents of one pushbutton to be used as content for another push button
Dear all, I tried to import a text file via a pushbutton in app designer and it works.Now I want to use let's say 1st column o...

3 meses ago | 0 answers | 0

0

answers

Question


How to find the maximum of peaks ?
I want to find the first maximum 4 peaks in loop.My code finds all the peaks,how can I find only 4 and plot them ? A= load ('ZT...

4 meses ago | 1 answer | 0

1

answer

Question


How to alter data (multiply) from all the columns of multiple text files in a folder
I have multiple text files locate in a folder.The names of the text files varies.How shall call them & multiply all the values i...

5 meses ago | 1 answer | 0

1

answer

Question


FFT of single max sided from signal
I'm trying to get frequency of signal.But after applying FFT it doesn't shows 200e3 (which is given) ? Attaching the code and p...

9 meses ago | 1 answer | 0

1

answer

Question


Index value intersection query in matlab
I'm trying to calculate the intersection value of x,y from a matrix. The loop seems correct but the values that I get seems wro...

9 meses ago | 1 answer | 0

1

answer

Question


How to plot magnitude vs length from magnitude vs time plot
I have the magnitude (amplitude) vs time Y.X values obtained. I would like to know how can I plot magnitude vs length of the sp...

9 meses ago | 1 answer | 1

1

answer

Question


How to make Triu in reverse axis for triangular matrices ?
The function triu makes the upper triangular matrix in the shape of L . How shall I reverse it like to make it run in opposite...

alrededor de 1 año ago | 1 answer | 0

1

answer

Question


Polar plot using polyfit
I'm trying to fit the VALUES to make a polar plot but it seems I couldn't fit one value 1400e2 which the polyfit doesn't take ...

alrededor de 1 año ago | 3 answers | 0

3

answers

Question


I have 2D plot,how shall I make it look like a 3D like a view from top.
subplot(2,1,1); x = linspace(0,10); y1 = sin(x); plot(x,y1) subplot(2,1,2); y2 = sin(5*x); plot(x,y2) How to to make t...

alrededor de 1 año ago | 1 answer | 0

1

answer

Question


Plot one row of x with multi rows of Y
I have something like this values 25 is the X and remaing four values after that consitutes Y ..similarly for 50,100 ..250etc.....

alrededor de 1 año ago | 2 answers | 0

2

answers

Answered
How to understand mean absolute error percentage?
MAPE= mean((abs(ye-Yv))./Yv) Yv=Real values vector ye=Neural Network model's estimated values

más de 1 año ago | 0

Question


How to smoothen the signal and make a good envelope
I have a velocity and time data.I would like to smoothen the signal as the hilbert of the signal is very dense ? How to do it ...

casi 2 años ago | 1 answer | 0

1

answer

Question


How to cut the signal at particular time or tol value ??
I have a signal and respective time ,how shall I cut it at a certain more or less close to tol value/time vector value. How to ...

alrededor de 2 años ago | 1 answer | 0

1

answer

Answered
How can I select multiple points using the Data Cursor while the 'DisplayStyle' is either 'off' or 'window'?
Use Shift + Data cursor and select the figure made with coords.

alrededor de 2 años ago | 0

Question


How can I set a descend order finding peaks to my graph ?
I have a graph that takes the values from first maximum peak point and plots it.Now,how shall i introduce a threshold or descend...

alrededor de 2 años ago | 1 answer | 0

1

answer

Question


Dimensions of arrays being concatenated are not consistent.
Here all the variable are of 1X3 except velocity which is 1X2 So,how shall I add even that value in the sheet ? as I get Dim...

alrededor de 2 años ago | 1 answer | 0

1

answer

Question


To RESHAPE the number of elements must not change.
rows = 450; cols = 450; samples = 1024; samples = size(data2d,2); Data = reshape(data2d,cols,rows,samples); Da...

más de 2 años ago | 1 answer | 0

1

answer

Question


How to use hanning window to get 5 cyles of sine waves?
load('x.mat') t=0:10*pi; % 5 cyeles sf=200e3; %frequency sinewave = sin(2*pi*sf*x); % gen continuous sine waves w = hanning...

más de 2 años ago | 1 answer | 0

1

answer

Question


How to add Hann 5 cycles to the sine wave plot?
I would like to know how to add cycle to the sine plots? The below one is a sine plot continuous how to make it short for only ...

más de 2 años ago | 1 answer | 0

1

answer

Question


How to remove particular value from matrix?
I have 2*104 matrices ,I'm interested to remove all values below a particular value say 2.5E-4 from row 2?

más de 2 años ago | 0 answers | 0

0

answers

Question


Create a line of particular length and orientation
I found a code which creates line in arbitrary space and e verywhere,I couldn't control it's position as randi is used. Let's s...

más de 2 años ago | 1 answer | 0

1

answer

Question


I'm trying to find the RMSD of the numbers by taking 1-2,2-3,3-4 in a sequence ,how can i loop as such ??
I'm right now doing as such,how to form a loop by taking in the previous nos? N = [ 55378 55344 55310 55276 55242 55208]; a = ...

más de 2 años ago | 2 answers | 0

2

answers

Question


Why the increment of plot not working ?
I don;t know where the error is as instead of 6 figures I get 36 figures as its a 2 for loops ,how to combine these 2 varying fo...

más de 2 años ago | 1 answer | 0

1

answer

Question


second largest peak value
I'm getting the amp of second largest peak as correct but the time is wrong ? How to obtain the second highest value X,Y from t...

más de 2 años ago | 2 answers | 0

2

answers

Question


Findpeaks loop value not saving separately
I'm using findpeaks and trying to save the AMP values separately.But my loop is saving only the last value even though it runs i...

más de 2 años ago | 1 answer | 0

1

answer

Question


Value of a variable not changing in the workspace ??
The value of j goes upto 1025 but i stays at 255 itself ,what's the error in this nested loop?? X = load('x.mat'); Y = load('...

casi 3 años ago | 1 answer | 0

1

answer

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