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# Siddharth Shankar

### MathWorks

Active since 2011

Professional Interests: Software development, GUI building, Instrument Control, Data Acquisiton

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Submitted

Reverse Token Order
Reverse the order of words in a string.

circa 5 anni ago | 1 download |

Submitted

Two Port S-Parameter Measurement
Perform a 2-port s-parameter measurement using the Instrument Control Toolbox.

circa 5 anni ago | 17 downloads |

Why does Stateflow evaluate the condition [x >= (1/2)] differently from [x >= 0.5]?
If I had to guess, I would think that 1/2 results in integer division which always yields 0, and this is then cast to double (0....

circa 9 anni ago | 1

| accepted

How to activate Stateflow substate without flow graph
Can you please expand on the question a bit? It would help if you could sketch out a very simple example example with maybe jus...

circa 9 anni ago | 1

Solved

Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

oltre 9 anni ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

oltre 9 anni ago

Solved

Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

oltre 9 anni ago

Solved

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

oltre 9 anni ago

Solved

Given a and b, return the sum a+b in c.

oltre 9 anni ago

Solved

Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

oltre 9 anni ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

oltre 9 anni ago

Solved

Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

oltre 9 anni ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

oltre 9 anni ago

How to find number of arrays in a structure filed ?
Off the top of my head: function [N1, N2] = fieldCount(inputStruct) N1 = 0; N2 = 0; for i = 1: numel(inputStruct) i...

oltre 10 anni ago | 0

| accepted

How to react on a change of variable from workspace?
One POSSIBLE solution if you are not considering a _timer_ object (and assuming that you have a relatively recent version of MAT...

oltre 10 anni ago | 4

| accepted

Declaring 'many' variables from work space into function workspace
A very simple (but effective) way to do this is to use EVALIN to save the necessary variables in the base workspace to a MAT fil...

oltre 10 anni ago | 8

Writing Non-ASCII keys in Serial Port
The value for CTRL-Z (^Z), is 26 (decimal value). So you could just try using FWRITE to send that value, in addition to all the ...

oltre 10 anni ago | 1

| accepted

Store and read MAT-file as embedded file in an Excel spreadsheet
If you are familiar with C++, then you could consider using the <http://www.mathworks.com/help/techdoc/apiref/bqoqnz0.html#bqoqn...

oltre 10 anni ago | 0

How do I creating a database of image files that is accessible from MATLAB?
You could store the image data into a database as a BLOB (Binary Large Object). I know you can do this in MySQL, you need to che...

oltre 10 anni ago | 1

Frequency modulating a wav file?
If simulink is an option, the <http://www.mathworks.com/help/toolbox/commblks/ref/fmmodulatorpassband.html FM Modulator Passband...

oltre 10 anni ago | 0

calling Java methods using JNI/C++ (via Swig) from Matlab -> UnsatisfiesLinkError
Please try adding the path to the C++ library inside the file: librarypath.txt 1. From the MATLAB command prompt: edit lib...

oltre 10 anni ago | 1

How can I convert a MATLAB file into a .exe file ?
You can do this using the <http://www.mathworks.com/products/compiler/ MATLAB Compiler>. The executable created needs to be pack...

oltre 10 anni ago | 0

How to replace "getsnapshot" with the button on my webcam?
What you are asking for is a "hardware trigger". You could check if your VIDEOINPUT object supports hardware triggers by using t...

oltre 10 anni ago | 1

MATLAB GUI
As Matt mentioned, UITABLE wasn't really supported/documented till R2008a and was not (in 7a) nearly as powerful as it is today....

oltre 10 anni ago | 1

How to replace MATLAB icon from a figure window?
As Bruno says, that would be a breach of the MathWorks license agreement. Specific details here: <http://www.mathworks.com/su...

oltre 10 anni ago | 3

Read Data from Serial Device
Douglas, I would recommend adding a call to FLUSHINPUT (if you are using the Instrument Control Toolbox) as soon as you FOPEN...

oltre 10 anni ago | 0

Image Background Removal
Have you considered using the <http://www.mathworks.com/help/toolbox/images/ref/imabsdiff.html imabsdiff> method. The difference...

oltre 10 anni ago | 0

Saving a Bilevel - or Binary Image
B = zeros(X, Y, 1, NumberOfFrames); B = logical(B); is what you are looking for. More info here: <http://www.mathworks.com...

oltre 10 anni ago | 0