# Ramesh Bala

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**Feeds**

Question

Adding sprintf values using a loop

Dear group, I'm trying to plot multiple subplots and adding names using loop.I tried to add a single name it works in a loop bu...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

Error in using eval statement

Why it shows an incomplete statement ? I'm trying to write this statement using eval as follows : Energy_H_A1S1 = rms (H_A1S1...

meer dan 2 jaar ago | 2 answers | 0

### 2

answersQuestion

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 ?...

meer dan 2 jaar ago | 2 answers | 0

### 2

answersQuestion

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...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 2 jaar ago | 0 answers | 0

### 0

answersQuestion

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) =...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 2 jaar ago | 0 answers | 0

### 0

answersQuestion

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...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

ongeveer 3 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

ongeveer 3 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

ongeveer 3 jaar ago | 1 answer | 1

### 1

answerQuestion

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...

meer dan 3 jaar ago | 1 answer | 0

### 1

answerQuestion

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 ...

meer dan 3 jaar ago | 3 answers | 0

### 3

answersQuestion

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...

meer dan 3 jaar ago | 1 answer | 0

### 1

answerQuestion

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.....

meer dan 3 jaar ago | 2 answers | 0

### 2

answersHow to understand mean absolute error percentage?

MAPE= mean((abs(ye-Yv))./Yv) Yv=Real values vector ye=Neural Network model's estimated values

bijna 4 jaar 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 ...

ongeveer 4 jaar ago | 1 answer | 0

### 1

answerQuestion

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 ...

meer dan 4 jaar ago | 1 answer | 0

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answerHow 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.

meer dan 4 jaar 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...

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

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 ...

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

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?

meer dan 4 jaar ago | 0 answers | 0

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answersQuestion

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...

meer dan 4 jaar ago | 1 answer | 0

### 1

answerQuestion

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 = ...

bijna 5 jaar ago | 2 answers | 0

### 2

answersQuestion

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...

bijna 5 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

bijna 5 jaar ago | 2 answers | 0