Community Profile # Ramesh Bala

Last seen: Today 2018 以来アクティブ

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How to plot a Wavenumber from wavefield?
I have a 3D wavefield and I took a single (vertical line) data from it too measure the wavenumber changes at various time instan...

3日 前 | 0 件の回答 | 0

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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...

10日 前 | 1 件の回答 | 0

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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...

4ヶ月 前 | 1 件の回答 | 0

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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...

4ヶ月 前 | 1 件の回答 | 0

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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...

5ヶ月 前 | 1 件の回答 | 1

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Using canny filter to locate varying diameter circles
The filter locates all the other edges but can it be modified only to detect three corner circles as present in the color figure...

6ヶ月 前 | 0 件の回答 | 0

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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...

8ヶ月 前 | 1 件の回答 | 0

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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 ...

10ヶ月 前 | 3 件の回答 | 0

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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...

11ヶ月 前 | 1 件の回答 | 0

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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.....

11ヶ月 前 | 2 件の回答 | 0

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

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 ...

1年以上 前 | 1 件の回答 | 0

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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 ...

2年弱 前 | 1 件の回答 | 0

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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.

2年弱 前 | 0

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...

2年弱 前 | 1 件の回答 | 0

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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...

2年弱 前 | 1 件の回答 | 0

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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...

2年弱 前 | 1 件の回答 | 0

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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...

2年弱 前 | 1 件の回答 | 0

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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 ...

2年弱 前 | 1 件の回答 | 0

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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?

2年弱 前 | 0 件の回答 | 0

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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...

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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 = ...

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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...

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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...

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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...

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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('...

2年以上 前 | 1 件の回答 | 0

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How to get FFT coefficient plot
How to obtain FFT for the given amplitude (vs) time plot? Kindly inform me is below code is right ?? as I don'see any FFT pea...

2年以上 前 | 1 件の回答 | 0

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SVD file to normal coordinates
I have a .svd file ,how to get the coordinates and time values from it using matlab.From svd data to coordinates like M(x,y,t) ...

2年以上 前 | 2 件の回答 | 0

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nearest tangent point from Ginput point to line ?
I'm trying to get the nearest by creating a ginput and then ginput point finds the nearest point to the line. x = [0,20] ...

3年弱 前 | 2 件の回答 | 0

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plot ellipses by clicking points?
How to plot ellipses by clicking on the points. I have a 100*100 cm grid and I would like to generate ellipses in it by clicking...

3年弱 前 | 1 件の回答 | 0