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Problem with fitting a loglog plot
Using a linear regression on logarithmically-transformed data creates multiplicative errors, not additive errors that least squa...

oltre 2 anni fa | 0

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How to use symbolic equation?
For symbolic plots, use the fplot function — syms Wosc R C gm Ao = gm*R/(1+2*pi*Wosc*R*C); pretty(Ao) R = 1000; C = 27...

oltre 2 anni fa | 1

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Add a line on the graph
Try this — num_simulations = 10000; %Common parameters Discount_Rate_min = 0.06; % assume 6-8% Discount_Rate_max = 0....

oltre 2 anni fa | 2

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Combination of two tables with different time lines
Converting the times in the first file is straightforward. Everything else seems to be NaN. T1 = readtable('Combining1.xlsx'...

oltre 2 anni fa | 0

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How to solve the error for graph?
I tweaked your code a bit, however it is still incorrect. The main problem is that ‘avg_LCOH_SOEC’ should be a (24x24) matrix...

oltre 2 anni fa | 0

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Adding the stl file to the Matlab simulation
It depends what the .stl file is. The first step would be to use the stlread function to import it, and then use trisurf (or...

oltre 2 anni fa | 0

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How can I specify the region of the contour plot ?
Without the data or the contour levels labels, a precise reply is not possible. If you know that all the data are either greate...

oltre 2 anni fa | 0

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Getting NaN after filtfilt function
You are using transfer function (‘[b,a]’) output implementation. Often, this creates an unstable filter, producing NaN values i...

oltre 2 anni fa | 0

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How to plot different datasets in a scatterplot next to each other at discrete points on x-axis?
See if the swarmchart function (introduced in R2020b) will do what you want.

oltre 2 anni fa | 1

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What code will open .stl files successfully?
I am having serious problems trying to access that file. (I’ll keep working on it.) The patch function requires ‘x’, ‘y’, (a...

oltre 2 anni fa | 0

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Can I assign vectors with different number of rows per-column to a matrix?
I would use a cell array. It is not as convenient to use as a numeric matrix, however it tolerates different length vectors.

oltre 2 anni fa | 0

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I'm dealing with Speech compression using Linear Predictive Coding. When I run the code I get a few errors.
This is the path to the file, however it does not include the file name (and extension): kdt_003 = fullfile('C:\Users\user\Des...

oltre 2 anni fa | 1

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mapping bode plot for Low Pass Filter
You need to do element-wise exponentiation (.^) and division (./) — R = 1000; C = 100*10^(-9); tau = R*C; w = 0:100:100000;...

oltre 2 anni fa | 0

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how to find the values that minimize the objective function using the generic algorithm?
I used some standardised code that I wrote for these sorts of problems that I adapted to your data — clear all close all clc...

oltre 2 anni fa | 0

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find max for every 7 rows
Use either the reshape or the Signal Processing Toolbox buffer function for each variable. Example — Data = randn(49,2) ...

oltre 2 anni fa | 0

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How to synchronize three measurment data?
This turned out to be a bit more involved than I thought it would be. The data matrices do not have the same lengths and the sa...

oltre 2 anni fa | 1

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Using coefficients from designNotchPeakIIR generated an error message
The filtfilt function needs a 6-column second-order-section matrix and a scale factor. The matrix can be created by horizontall...

oltre 2 anni fa | 0

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How do I target values within a range for different variables within the same given time series?
I do not completely understand what the data are, or the lengths or content of the various data arrays. It might be worthwhil...

oltre 2 anni fa | 0

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how to use freqz function correctly
You can set the 'XLim ' range for the subplot axes, however that may be a bit of a stretch even then. Another option is to sign...

oltre 2 anni fa | 0

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How to obrain p-values for coefficients with polyval - polyparci?
‘... but there is no built-in way to have p-values for those coefficient?’ There is now. I did not realise that there was a ...

oltre 2 anni fa | 0

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Unrecognized function or variable 'tradeoff'
The only reference I can find in the File Exchange is MTEX2Gmsh. If this is the correct citation, you will need to download a...

oltre 2 anni fa | 0

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I have two peaks in my doppler signal. 1 @ zero and other @ actual velocity.
I am not certain what your data are, however the ‘peak’ at D-C (0 Hz) is likely the result of a constant D-C offset. Subtract...

oltre 2 anni fa | 0

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Is there a Matlab built in function to determine the domain of a function?
The Symbolic Math Toolbox has the argnames function.

oltre 2 anni fa | 0

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how can I make a custum legend in a second figure?
It is difficult to follow your code. One optioni would be to use the 'DisplayName' name-value pair as described in Specify ...

oltre 2 anni fa | 0

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How to get different sizes of horizontal and vertical error bars?
One option would be to use: axis equal or: axis('equal') There is no obvious way to scale them otherwise.

oltre 2 anni fa | 0

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Image display error when using surf
MATLAB 7.1 was introduced in 2006. I cannot find any documentation for the Signal Processing Toolbox for it (that likely explai...

oltre 2 anni fa | 1

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getting a clear signal with eog
One option I like for these sorts of signals is the Savitzky-Golay filter (sgolayfilt). I generally use a 3-degree polynomial,...

oltre 2 anni fa | 1

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uncertainty in polyfit from measurements?
When this post first appeared, polyparci did not exist. It does now. It may be helpful.

oltre 2 anni fa | 0

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Supplied objective function must return a scalar value
The function needs to return one parameter vector. One way to do that is to create a second function to map the inpouts to ...

oltre 2 anni fa | 0

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High pass filter on cumtrapz
The ‘acceleration’ signal has a constant offset of about 1.03, so the integration is going to emphasize the offset and not the i...

oltre 2 anni fa | 0

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