# Pappu Murthy

Professional Interests: signal processing

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**Content Feed**

Question

Need to find "Knees" in Stress Strain curves where slope change abruptly

I have stress strain curve which is basically peicewise linear. I need to find everytime there is a sudden change in the slope, ...

2 days ago | 1 answer | 0

### 1

answerQuestion

how to use betafit for a data that is outside the range of 0 to 1.?

I have numbers between 10 to 20. If I try to use betafit it refuses to fit because the range is not from 0 to 1. If I have numbe...

10 days ago | 1 answer | 0

### 1

answerQuestion

How to test montonousness of X Y data

I have sets of XY data with anywhere from 1 to 10 elements in it. I need to check whether x vs y is montonously increasing or no...

16 days ago | 1 answer | 0

### 1

answerQuestion

Adding text programmatically to a figure

I have a figure with several subplots in it. I want to place a textbox with some text init which belongs to the entire figure. H...

19 days ago | 2 answers | 0

### 2

answersQuestion

I am struggling a lot in my NN project

I have 20 inputs and one output. I am trying to train using the Deepnetwork work flow. I tried several combinations of hidden la...

1 month ago | 0 answers | 0

### 0

answersQuestion

writecell command is not working.

When trying to write cell with only entity it does not work. if I have more than one entity it works fine. For e.g. Hdr1 = {'T...

1 month ago | 1 answer | 0

### 1

answerQuestion

feedforward net for regression.

I have 1000 sets of data. each set consists of 4 input variables and one output variable. Variables 1, 2, and 3 remain same but ...

4 months ago | 1 answer | 0

### 1

answerQuestion

Global sensitivity analysis with Input and output data only

I have a Matrix of input variables that were drawn from uniform distribution with in a specified range. My matrix is like [10000...

5 months ago | 1 answer | 0

### 1

answerQuestion

I want to stop, check and restart an ongoing feedforward neural net.

Suppose i am training a network with net = train(net,x,t) where x inputs, and t targets. let us say I want to check how well th...

6 months ago | 1 answer | 0

### 1

answerQuestion

How to center Column names in table

I use the uiStyle to make all my table entries to whichever type allignment I desire but the column names always seem to be left...

8 months ago | 1 answer | 0

### 1

answerStand alone executable using mlapp file

I found the answer. I had name syntax wrong. I had spaces in between which it didn't like. So I replaced the spaces with Undersc...

8 months ago | 0

| accepted

Question

Stand alone executable using mlapp file

I have created an App using the app designer. I am trying to compile. I created a project and specified all the relevant detail...

8 months ago | 2 answers | 0

### 2

answersQuestion

Matlab barchart question.

I get this strange error (screen shot attached) when I save the figure as ".emf", or ".bmp" but no error at all when I tried to ...

9 months ago | 1 answer | 0

### 1

answerQuestion

NeuralNET with Categorical Variables.

I am trying to train a NN with a set number of Input variables, say "n", and a set of outputs say "m". I have two categories 1 a...

9 months ago | 0 answers | 0

### 0

answersQuestion

Neural Net training function parameters

I am trying to use the algorithm trainbr for my feedforward neural net and trying to set up max number of epochs to 5000, using ...

9 months ago | 1 answer | 0

### 1

answerQuestion

How to add the "Plottools" icon to plot control ribbon.

Whenever I create a plot, it used to have on top left corner a ribbon with icons, one of which is "plottools" when I click it th...

10 months ago | 1 answer | 0

### 1

answerQuestion

Location of centers of Circular regions

I have a square region digitized to 40x40 grid. Each cell is denoted either by 1 or by 2. The 1's show circular regions for whic...

10 months ago | 2 answers | 0

### 2

answersQuestion

Heat Map Cell values display

I noticed the cell values are displayed with arbitrary size and with 'normal' fontweight. I wonder whether one can choose, the ...

11 months ago | 1 answer | 0

### 1

answerQuestion

Display format of numbers shown

I have generated heatmap of 7x7 cells. It shows some floating point numbers on each square like 0.0123 and so on. There are 4 d...

11 months ago | 1 answer | 0

### 1

answerQuestion

How to find what settings "tsne" is using when I do not specify any Name Value pairs as options?

If I use tsne with out any Name Value pair options, is there a way to find what parameters the code is using internally? Is ther...

1 year ago | 1 answer | 0

### 1

answerQuestion

Mixed data types in a Table

I have an app developed using app Designer. I have a table with 5 rows and 3 columns. These are usually double type and my numb...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to eliminate Repeated NaNs in a array?

I have two vectors X, and Y; both will have NaNs present in them. If X has a NaN, Y will have a NaN as well at the same locatio...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to use format spec to read in Textscan?

I have a string '-2.554-4'. This when I read using textscan I get two numbers -2.554 and -4. However it should be actually -2.55...

2 years ago | 1 answer | 0

### 1

answerQuestion

tooltip in App Designer

In my App designer for one of the panels I defined a tooltip. Now I want to get rid of it. Everytime i highlight and get rid of ...

3 years ago | 2 answers | 0

### 2

answersQuestion

Button Pressed Behavior control in App Designer.

I created static text area with some text in an App using App Designer. I created a button when pressed makes the visibility of ...

3 years ago | 2 answers | 0

### 2

answersQuestion

subplots in App Designer.

I am developing a GUI which has two Axes, UIAxes2, and UIAxes. UIAxes2 has single plot and it works fine. But UIAxes, should hav...

3 years ago | 1 answer | 1

### 1

answerQuestion

I have a question on usage for fft to get fourier series back.

My problem is f = 1 + 2*sin(2.*pi*t/L) + 3.*sin(4*pi*t/L); L = 1, and I am dividing the peiod to 100 steps. Here i...

3 years ago | 1 answer | 0

### 1

answerQuestion

Question on usage of fft

I have a function F(t) = 1 + 2*sin(pi*t/180); So it has one harmonic. If I do TestFFT = fft(F(t),5); % Asking for 5 ...

3 years ago | 1 answer | 0

### 1

answerQuestion

Binary file reading.

I have a binary file data which I am trying to read. the first data of record is 8 integer numbers. They are precision "int" wh...

3 years ago | 1 answer | 0

### 1

answerQuestion

Neural Net Inputs.

My input is actually a series of 1's and 2's very long like 1600. I need to somehow reduce this to a manageable size, since if I...

3 years ago | 0 answers | 0