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Rounding towards zero or from zero
There is no tie involved in rounding 3.6. If you wish, you can use floor instead: floor(3.6) If x was 3.5 instead, that would...

3年以上前 | 1

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Is it possible to have a file that changes it name depending on another variable?
Try this: % Button pushed function: SaveButton function SaveButtonPushed(app, event) PatientID = app.PatientI...

3年以上前 | 1

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Condense code in Split string operation
If you put the filename in a string instead of a char vector you can do it in one line s = "xxx_yyy_zzz.xlsx" extractBetween(s...

3年以上前 | 1

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increasing amplitude of sine wave
Fs = 44100; dt = 1/Fs; StopTime = 3; t = (0:dt:StopTime-dt)'; Fc = 3000; A = linspace(0, 1, numel(t))'; y = A.*sin(2*pi*Fc...

3年以上前 | 0

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How to search for previous values in a table?
This should do what you want. Note that the cell array in this case only has one cell because there are only two timestamp rows...

3年以上前 | 0

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Match two variables list
Perhaps what you want is this: c = ["80ms,110ms", "110ms,140ms", "140ms,195ms", "195ms,250ms", "250ms,400ms", "400ms,550ms", "5...

3年以上前 | 0

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Formatting a vector to not include the first value
It seems like you could benefit from taking this introduction to using Matlab: Matlab onramp This is an example of very basic ...

3年以上前 | 0

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Using plot handle to replot a graph
Read the documentation for the copyobj function. Here is an example: x = 0:0.1:10; y = [sin(x);cos(x);tan(x)]; for i = 1:3; ...

3年以上前 | 1

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how do I swap both axes in the current plot
syms y U = y^2/2 - (3*y)/4; yrange = [0,1]; fp = fplot(U,yrange); plot(fp.YData,fp.XData) grid on

3年以上前 | 1

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Code to determine a log of the mean for a column of numbers?
A = magic(4) logmean_col1 = log(mean(A(:,1))) max_col2 = max(A(:,2)) mean_col3 = mean(A(:,3)) mean_col4 = mean(A(:,4))

3年以上前 | 1

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Find unique number sets
A = [1 4; 2 3; 3 2; 1 4]; B = unique(sort(A, 2), 'rows')

3年以上前 | 0

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Why is Q=30 after the loop is ran?
B=1; Q=0; if B==1 && Q~=B Q=20; if B<0 || Q==20 % you just set Q equal to 20 on the line above so this condition is ...

3年以上前 | 0

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How to plot the bode plot extracted from LTspice in Matlab?
I used the import tool to import the data as fixed width data (right click on the file in the Current Folder and select Import D...

3年以上前 | 0

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If there is a coding "sqrt(sum(data(:,1:end).^2,2))" , so what is the function number 2 after comma?
That tells the sum() function to sum along the rows. See the documentation for sum here

3年以上前 | 1

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Extracting data from a matlab figure and saving it as a .mat file
open('6000_1.fig') hl = findobj(gca, 'Type', 'line'); % find the lines x = get(hl, 'Xdata'); % extract the data y = get(hl, '...

3年以上前 | 2

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Filling gaps in a vector using a secondary data set
rain1 = [nan nan 1:10 nan nan] % example data rain2 = [20:34] idx = isnan(rain1); % find where rain1 has nans rain1(idx) = ra...

3年以上前 | 0

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Guessing the values of a function by using initial values
You don't have to "guess" the values of the function, you can just calculate them. Example x = [-20:.1:20]; y = x; [X,Y] = m...

3年以上前 | 0

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Replacing Values in Matrix that are not equal to 1 while excluding 'NaN'
test1 = [ NaN 2 9 2 -.23 NaN 3 2 -1 -1 NaN 6 -.4 -1 -.57 NaN] test2 ...

3年以上前 | 0

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Concatenating Edit Field value with an existing string in App Designer
First, if you are getting an error, that is usually what will help you (and us) figure out what is wrong so, please, post the co...

3年以上前 | 0

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How to tick the parameter in the plot of a parametric function?
Try this (or something similar): % Your original code t = linspace(0, 1, 1000); x = t.^2; y = t.^3; figure plot(x, y, '-'...

3年以上前 | 2

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Two easy questions (But I am confused)
Using smaller examples so we can see the results: S = magic(10) % sample matrix d = diag(S) % extract the diagonal elements %...

3年以上前 | 0

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How to plot a 3-D "hotspot" figure
I would suggest looking at this example for the scatter3 function: scatter3 with varying marker colors You could use your f(x, ...

3年以上前 | 1

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How do I demagnify a help page?
Ctrl-Scroll Down will reduce the magnification

3年以上前 | 0

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How can I programmatically open the results of a command in a new window without setting it to a variable?
I can only think of a way to do this in two steps rather than one. result = 2 + 2; openvar('result'); This should work in des...

3年以上前 | 1

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Efficient Way to find index of max column for each row
Are you wanting to find the column number of the maximum value in each row? If so, this is how you can do that: A = magic(5) %...

3年以上前 | 0

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Too many output arguments (five on output)
You are defining this function as a function that takes 5 input arguments and returns one output argument. function y_cubic=cub...

3年以上前 | 0

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Strange result in subtraction operation
The "obvious" result is 1.2e-14 not 1.12e-14 (the different last two digits in your original numbers at the 14 decimal place giv...

3年以上前 | 0

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Removing quotation marks in a string using for loop
The quotation marks are not actually part of the string. It is just displayed that way. Plus, since you are using strings inst...

3年以上前 | 0

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What is this center line when I create m file from mlx file?
I believe that what you are seeing (if you are viewing these in the Matlab editor) is the "Right-hand text limit" line. You can...

3年以上前 | 0

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How to Extract 2048 values containing the maximum value?
Note that this plots the group that contains the maximum datapoint in all of the data. It does not "plot the largest 2048 value...

3年以上前 | 1

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