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Christopher Wallace


Last seen: ongeveer een maand ago |  Active since 2017

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Answered
Convert String to Expression for IF Statement
Check out the 'eval' function. https://www.mathworks.com/help/matlab/ref/eval.html

meer dan 5 jaar ago | 0

Answered
How can I generate a uint8 type output from the Pulse Generator block in Simulink?
Can you use a gain block with the output data type specified as 'uint8' or does that produce the same results as the convert blo...

ongeveer 6 jaar ago | 1

Answered
Problems updating variable on the callback of a timer
Use the 'UserData' property of the timer to access data set within the timer function. <https://www.mathworks.com/help/matlab...

ongeveer 6 jaar ago | 0

Answered
Vectorized method to sum missed one values
startingData = [0, 1, 1, 0, 0, 1, 0, 1]; stringArr = sprintf('%d', startingData ); % Convert to string for use with regexp ...

ongeveer 6 jaar ago | 0

Answered
how to convert .dat and .mdf files into .mat files in matlab
What version of Matlab are you using. If it's 2016b or beyond check out: <https://www.mathworks.com/help/vnt/ug/mdf.html> Ot...

ongeveer 6 jaar ago | 0

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Answered
Get port name along with number
simBlockH = get_param('LaneA_ICD_Fccroot', 'Handle') handles = find_system(simBlockH, 'LookUnderMasks', 'on', 'FollowLinks'...

ongeveer 6 jaar ago | 1

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Answered
How to slice each string in a string array without using for loop
chardata = cell2mat(a); numdata = str2num(chardata(:,6:7));

ongeveer 6 jaar ago | 2

Answered
how do I extract part of a cell of string values?
You could use a cell function. cellfun(@(x) x(end-3:end), your_var, 'UniformOutput', false)

ongeveer 6 jaar ago | 1

Answered
Failing to find a string on a cell of strings using strcmp
Try using 'regexp' curr_recs_idx = regexp(record_groups_hrs,['_',curr_hr, '\>'])

ongeveer 6 jaar ago | 1

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Answered
The sum of positive elements of a matrix
sum(sum(M(M > 0)))

ongeveer 6 jaar ago | 1

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Answered
Typecasting a matrix of 200x8 uint8 to double
double(a);

ongeveer 6 jaar ago | 0

Answered
How to send result from block (Simulink) to the Workplace (not array) ?
In the 'To Workspace' block select 'Array' as the output type instead of 'Timeseries'

ongeveer 6 jaar ago | 0

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Answered
Trying to calculate a volume by changing equation for volume for different variable parameter
Hi Alison, You're using the array 'h' in your if else statement which as written doesn't satisfy any of the conditions causin...

meer dan 6 jaar ago | 0

Answered
How can I get the output and input names of all my subsystem blocks in my simulink model?
Yes. What have you tried so far? Something like this should work. rootHdl = get_param(bdroot, 'Handle'); sysIns ...

meer dan 6 jaar ago | 2

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Answered
How to batch editing scope parameters in Simulink with model explorer(Model explorer does not show some properties of Scope)
I'm not sure about Model Explorer, what version of Matlab are you using? I tried on 2017a and it seemed to work fine. Another...

meer dan 6 jaar ago | 0

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Answered
Listbox showing variables with for loop
There are a few ways to create a GUI. For this example I'm using <https://www.mathworks.com/help/matlab/creating_guis/about-the-...

meer dan 6 jaar ago | 0

Answered
Iterate over vector from result of a for loop
Here's one solution: % Number of iterations numberOfLoops = 10; amountToSubtract = 480; % Create an intial mat...

meer dan 6 jaar ago | 1

Answered
Sort data from text file into columns
fid = fopen('yourTxt.txt'); A = []; tline = fgetl(fid); ii = 1; jj = 1; while ischar(tline) while ~isemp...

meer dan 6 jaar ago | 1

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Answered
how can i get my license number or activation key
license

meer dan 6 jaar ago | 0

Answered
How do I get the port names of a block based on their port handles?
Select the subsystem and then use the following code: find_system(gcb, 'SearchDepth', 1, 'BlockType', 'Inport') find_sys...

meer dan 6 jaar ago | 0

Answered
Help with conidtional loops?
use 'return' instead of 'break'

meer dan 6 jaar ago | 0

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Answered
In Simulink, is there a way to highlight a specific part of a circuit with a different coloured circuit lines
Yes, you can use the 'hilite_system' function. If you want to highlight only pieces of the model you selected you would first...

meer dan 6 jaar ago | 0

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Answered
How to use the break in a loop?
Hi Taylor, The problem with the 'break' statement is that you have 2 loops executing, a *while* loop and a *for* loop. Whe...

meer dan 6 jaar ago | 0

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Answered
I'm attempting to determine the maximum value of a signal (SIMULINK) . The max block returns the exact same signal back to me. What can I do to extract the maximum value?
If you want to do it purely in Simulink you could do something like this: <</matlabcentral/answers/uploaded_files/125495/2018...

meer dan 6 jaar ago | 0

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Answered
How import file csv with vertical header
Hi Agnes, One way you could accomplish this is to first convert your data into an array and then transpose it. a = readt...

meer dan 6 jaar ago | 0

Answered
How to insert a row into multiple fields (within a structure)
Mat, I've created dummy data that from what you're saying is similar in structure to what you use. The result of the code...

meer dan 6 jaar ago | 0

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Answered
How can I write to a CSV file in separated columns and without any commas?
csvwrite('matlabdandata2.csv', [frames, time, cycle])

meer dan 6 jaar ago | 0

Answered
Reading workspace variable from a .fig file
Hi Vamsi, Firstly, yes, you can access workspace variables from within with a GUI. Check out the 'evalin' function. The defau...

meer dan 6 jaar ago | 1

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Answered
How to save multiple tables in seperate sheets in Excel
Hi Victoria, Have you looked into the documentation for the Matlab command <https://www.mathworks.com/help/matlab/ref/xlswrit...

meer dan 6 jaar ago | 0

Answered
Adding Toggle Switch programmatically
Hi Osama, If I understand you correctly you could use the following code as an example: add_block('simulink/Sources/Consta...

meer dan 6 jaar ago | 1

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