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Pappu Murthy

Last seen: 11 dagar ago Active since 2014

Professional Interests: signal processing

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Question

What does this Digital filter actually do? and what is it called?
I am using a filter defined by Matrix [1 1 1 1 1;1 2 2 2 1; 1 2 4 2 1; 1 2 2 2 1; 1 1 1 1 1]; on a 2 D image with filter2. I...

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What is ICMFrequency? and How do you specify it?
I came across with an issue while fitting ecdf function for a large dataset (>700 ). When I specify the NameValue parameter "ICM...

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Empirical CDF with data containing left censored, exact and right censored failures.
My data consists of left censored, exact failures and right censored points. I am trying ecdf by considering data in two differe...

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Sobol First order and total sensitivities
I have 19 input variables and two outputs. I am focusing on one at a time. I have a closed form model flike Y = F(x1, x2, x3.......

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Deep Neural Net for Regression
I am training a NN with 19 inputs and two outputs. I have 1000 random observations, and I am using the first 800 for training, t...

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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, ...

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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...

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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...

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Question

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...

2

Question

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...

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Question

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

Question

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 ...

1

Question

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...

1

Question

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...

1

Question

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...

ungefär ett år ago | 1 answer | 0

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Stand 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...

ungefär ett år 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...

ungefär ett år ago | 2 answers | 0

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Question

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 ...

ungefär ett år ago | 1 answer | 0

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Question

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...

ungefär ett år ago | 0 answers | 0

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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 ...

ungefär ett år ago | 1 answer | 0

1

Question

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...

mer än ett år ago | 1 answer | 0

1

Question

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...

mer än ett år ago | 2 answers | 0

2

Question

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 ...

mer än ett år ago | 1 answer | 0

1

Question

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...

mer än ett år ago | 1 answer | 0

1

Question

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...

mer än ett år ago | 1 answer | 0

1

Question

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...

ungefär 2 år ago | 1 answer | 0

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Question

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...

mer än 2 år ago | 1 answer | 0

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Question

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...

nästan 3 år ago | 1 answer | 0

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Question

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 ...

mer än 3 år ago | 2 answers | 0

2

Question

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 ...

mer än 3 år ago | 2 answers | 0