Community Profile # Benjamin Thompson

Last seen: 9일 전 2015년부터 활동

Programming Languages:
C++, C, MATLAB
Spoken Languages:
English

#### 통계

• • • • 배지 보기

#### Content Feed

보기 기준

답변 있음
fft2 results don't match the analytical Fourier transform results
Your problem is 201 by 201 samples in size? Making the size a power of 2. So use 256.

7개월 전 | 0

답변 있음
Real Time Low Pass Filtering
All digital filters working in real time must have some delay, this is a law of filtering in general. The amount of delay depen...

8개월 전 | 0

답변 있음
Image analysis for speckle pattern
It is possible, try looking over this example: https://www.mathworks.com/help/images/correcting-nonuniform-illumination.html ...

8개월 전 | 0

답변 있음
How to break data in to groups using while loop?
Even better, use the vectorization features in Matlab to count NaNs in each row all at once. nanCounts = sum(isnan(matrix),1); ...

8개월 전 | 0

답변 있음
Replacing specific block with subsystems
Here is one way. I think you would just use a constant block rather than From Workspace because From Workspace is looking to us...

8개월 전 | 0

| 수락됨

답변 있음
I need to know how to use the for command to calculate y=2/x
x = 1:10; y = 2 ./ x;

10개월 전 | 0

답변 있음
How do I re-use values calculated in a while loop?
Theta1 and Theta2 have not been defined and given a value at the first reference. You should assign an initial value to Theta1 ...

10개월 전 | 0

답변 있음
How do i find the RGB values of color image in range 1 to 255
If the image is stored in MATLAB as a three dimensional array, which is the usual, then the red/green/blue channel is the third ...

10개월 전 | 0

답변 있음
How to create these shapes in Matlab
Where is the m-file referenced in the problem statement? That would probably help on some of the coding structure questions. Y...

10개월 전 | 1

| 수락됨

답변 있음
Measurement of properties from Tiff image
If you are using the Image Processing Toolbox then you are probably trying to use the regionprops function with the "Area" prope...

10개월 전 | 0

답변 있음
Not able to use the if condition as desired in simulink
You need to use the "if action" subsystem along with the "if". See the example in the documentation: https://www.mathworks.com...

10개월 전 | 0

| 수락됨

답변 있음
How to copy 30K images from folder to another according to the names in train and test text listes
Use copyfile to copy a file to a new location. You could probably use arrayfun to more quickly add the full file path to the fi...

10개월 전 | 0

답변 있음
Finding average data from a large data matrix
An index vector over the available columns would work well here. Cannot be sure without a complete example of the data. Then p...

11개월 전 | 0

| 수락됨

답변 있음
Coalesce data from 1000 monte Carlo simulations with different data file lengths?
With the data import tool you can generate a function like this. It needs some editing to handle some of the odd formatting of ...

11개월 전 | 0

답변 있음
Avoid a "loop for" to add multiple "datetime" elements to a cell array
If you can make is an N by 1 cell array and do the assignment using parenthesis indexing and num2cell, then convert that to the ...

11개월 전 | 0

답변 있음
Create Integral, Differential, timer and counter blocks from basic blocks in simulink
You can use a Memory block, subtraction block, and gain block to approximate a differentiator, implementing the equation dx/dt =...

12개월 전 | 0

답변 있음
How to make the flow diagram with if or any hint in Simulink?
A Stateflow chart is usually the best way to model a state diagram in Simulink. Try following the Stateflow Onramp training too...

12개월 전 | 0

답변 있음
How to get the equation of irradiance varying in time for a PV model under partial shading conditions?
Simulink has a 2D lookup table block with various options for interpolation, extrapolation, and fitting. With the two inputs be...

12개월 전 | 0

답변 있음
Hold the value of a signal
You can use the signal builder block to define any type of piecewise continuous signal you want.

12개월 전 | 0

답변 있음
How to pass an input value to a Simulink block from M-file?
Your M file can put the data into the base workspace as a variable with a known name. Then your Simulink model can use the From...

12개월 전 | 0

| 수락됨

답변 있음
How to change the color of each pixel in a masked image?
See if this helps. There is probably a faster way to do it with color mapping functions in the Image Processing Toolbox but it ...

12개월 전 | 0

답변 있음
I gave the initial condition correctly still the program not working.
circshift returns a vector of the same length as its input. So, j2, j5, j8, and j19 are vectors and not scalar values as the li...

12개월 전 | 0

답변 있음
How can I merge two structs?
Due to the need to merge it might be easiest to use struct2table, table2timetable, make sure it is merged well as a time table, ...

12개월 전 | 1

답변 있음
Displacements and velocity from acceleration integration (accelerometer data)
The Simulink Onramp training course is a good place to start: https://www.mathworks.com/learn/tutorials/simulink-onramp.html?...

12개월 전 | 0

답변 있음
GUI window to manually register two images?
You can try the registrationEstimator app included with the Image Processing Toolbox.

12개월 전 | 0

답변 있음
how to run a simulation at different times
You can use the Signal Builder block to configure how you want a signal to change over time. I assume you are simulating the mo...

12개월 전 | 0

답변 있음
Browsing the subsystem inside model using mscript
You can use open_system to open a Simulink model to some subsystem inside the model. The second parameter to open_system should...

12개월 전 | 0

| 수락됨

답변 있음
If you define your matrix as a Simulink.Parameter in a data dictionary and link to that data dictionary from your model, that wo...

12개월 전 | 0

답변 있음
How can I convert double to const real_T of a sfunction?
If x is a constant you cannot change it. You would need to supply a more complete example, it is hard to tell what you are tryi...

12개월 전 | 0

답변 있음