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# Aniruddha Katre

### MathWorks

70 total contributions since 2014

In my spare time, I like to play tennis, read books, go hiking and do some landscape photography.
Professional Interests: System Identification, Control Systems, Navigation, MATLAB, Signal Processing

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how do you display the current workspace name
One option is to save the variables currently in your workspace to a MAT-file with a different name than the one you loaded into...

3 years ago | 0

Executing Stopfcn model callback
This doc page has some information: <http://www.mathworks.com/help/simulink/ug/model-callbacks.html> See the section called *...

3 years ago | 0

| accepted

The parameters you load into the MATLAB workspace are not visible in the MATLAB Function block because they are not set as param...

3 years ago | 0

Solved

Transpose
Write a MATLAB script in order to convert a random length row vector (v) into a column vector.

3 years ago

Solved

Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

3 years ago

Solved

Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

3 years ago

Solved

Remove the two elements next to NaN value
The aim is to *remove the two elements next to NaN values* inside a vector. For example: x = [6 10 5 8 9 NaN 23 9 7 3 21 ...

3 years ago

Solved

Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

3 years ago

Solved

Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

3 years ago

Solved

Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

3 years ago

Solved

Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

3 years ago

How to sum value in rows from the previous rows
If the data is stored in a cell array as shown in your image, then: cumsum(cell2mat(B)) here B is the cell array of data...

3 years ago | 0

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Improvements for rapid Simscape changes with discrete valves
The speed of simulation depends on your solver choice of both the global solver and the local solver for the physical networks i...

3 years ago | 0

Sorted Execution Order, Initial Conditions, PID
In this case, the value of *e* is 20 at the initial time step because of the sorted execution order and the fact that you are us...

3 years ago | 0

How can I import a model to simulink that was exported by save_system(sys, 'exported_file_name.xml', 'ExportToXML', true)?
It is currently not possible to regenerate a generic Simulink model from an XML file. XML import to Simulink is only possible if...

3 years ago | 0

| accepted

Sum of certain value in a matrix
See the documentation for nnz: <http://www.mathworks.com/help/matlab/ref/nnz.html>

3 years ago | 0

How can I use a filter in a parfor with the more numerically stable z,p,k?
Modifying the parfor loop as follows seems to resolve the error. The filter object was causing the error to occur for some reaso...

3 years ago | 0

| accepted

why do i not have simulink property inspector
The property inspector was introduced in R2016b release of MATLAB. The documentation examples you are following are probably fro...

3 years ago | 0

"T.Properties.VariableNames" will not allow me to include parentheses () or brackets [ ] in my column heading
You get this error message because 'x[n] (V)' is not a valid MATLAB variable name. The columns in a table are actually MATLAB va...

3 years ago | 0

| accepted

Output argument 't' is not assigned on some execution paths.
Here, the variable t is an output from the MATLAB Function block. It needs to have a value at each time step of the simulation. ...

3 years ago | 7

export final point of Simulink signal to Workspace ?
You can connect the To Workspace block to the signal you want to log. In the block parameters, set the "Limit data points to las...

3 years ago | 1

| accepted

Code for connecting two Simscape blocks
This did not work because Line Handles gives you handles to lines that exist. If you look at the struct A, it has the values "-1...

3 years ago | 0

From what I looked at, the delete_line function deletes lines connected to "input ports" and "output ports" of blocks. You can s...

3 years ago | 1

| accepted

How to play with the Simulink Solver Parameters to reduce the Sampling Frequency?
If you have algebraic loops in the model that are causing these issues, playing with the solver step size is not the best way to...

3 years ago | 0

How to use savefig to save .fig to a specific location?
You can just pre-pend the path to the filename. For example, savefig('C:\Test\test.fig')

3 years ago | 1

| accepted

How to get a tilted slice in 3-D data?
See the section about *slicing at arbitrary angles* of the documentation page for the slice function. <https://www.mathworks....

3 years ago | 0

| accepted

Linear fit to data
You are on the right track. You can use polyfit to fit a trend line to the data. The output of polyfit is a vector of coefficien...

3 years ago | 6

Solved

The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

5 years ago

Solved

How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

5 years ago

Solved

The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

5 years ago