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I've tried using MATLAB R2023b to generate bode plots and calculate DC gains of transfer function but I keep on receiving an error message: 'Wrong number of input arguments'
Wrong syntax. Use the tf function, not syms for Control System Toolbox functions. Try this instead — s = tf('s'); b =...

mehr als 2 Jahre vor | 0

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Spectral Analysis of Water Wave Gauge Data
It would help to have the data. Be certain that the independent variable data are regularly sampled, so that the sampling fre...

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plot sine wave with exponent
I am not certain what you are asking. Try this — L = 30; % Signal Length (s) Fs =...

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How to convert specified time to GMT/UTC?
Try this — DT = datetime({'18-Oct-2023 17:40:00' '18-Oct-2023 18:00:00'},'TimeZone','+05:00') DT_UTC = DT; DT_UTC.TimeZon...

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error multiplying datetime (now) by 100 with *
I don’t understand summing a constant — sum(100) That aside, if you want to create a random datetime for a specific parti...

mehr als 2 Jahre vor | 0

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problem plotting from function call
In general, global variables are not considered good programming practice, principally because the functions they are passed to ...

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rotate 3D data
Use the rotate function. It will likely require a bit of experimenting to get it the way you want it. Example — imshow(imr...

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How to inclusively extract rows of a large cell array between cells given start and end patterns?
type('sample_input.txt') fidi = fopen('sample_input.txt','rt'); k = 1; while ~feof(fidi) Line{k,:} = fgetl(fidi); ...

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How I get area under the curve (AUC) value
The file is not provided, however it is not absolutely necessary for this. Try something like this — D = 0.1*randn(6,12000)...

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How to group xlines in legend
Using plot to plot the vertical lines is straightforward — ax = axes; % p = xline(ax, [1 2 3], "g-"); p = plot([1;1]*[1 2 3...

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filling missing value using linear interpolate in 2D
This works — T1 = readtable('GreenhouseData.xlsx', 'VariableNamingRule','preserve') VN = T1.Properties.VariableNames; T1(:,[...

mehr als 2 Jahre vor | 1

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readtable with datetime, format problem
‘How do I properly read the date in the dd/MM/yyyy format?’ You need to tell datetime: DateTime = datetime('12/10/2023 00:0...

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Read from text file between header and footer
One option is textscan — type('data.txt') fidi = fopen('data.txt','rt') C = textscan(fidi, '%f%f%f', 'HeaderLines',3, 'C...

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How can I solve this nested symbolic function ?
It would be best to abandon the idea of using the Symbolic Math Toolbox here, since it is not necessary. You can do everythin...

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Can I calculate the settling time in MATLAB?
Perhaps this — s = tf('s'); G = (7507.852*s^3 - 37030.228*s^2 - 70479.368*s + 100001.744) / (s^5 + 50*s^4 + 1000*s^3 + 10000....

mehr als 2 Jahre vor | 0

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how to add percentage symbol (%) in a label
The approach seems to work here using synthetic data — % x=table{:,"Xvalues"}; % y=table{:,"Yvalues"}; x = 1:5; y = round(r...

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Getting an equation from a signal transfer function
‘I would like to get a mathematical expression for that transfer function’ If you have access to the System Identification To...

mehr als 2 Jahre vor | 0

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Error using for-loop, keep getting "Index in position 1 is invalid. Array indices must be positive integers or logical values."
The variable and the function have the same names. Change the function name and it works — %% Using single-temperature to p...

mehr als 2 Jahre vor | 0

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FFT Analysis Issue: Unexpected Harmonic Multiples in Vibration Signal Frequency Plot
It appears that the fft plot as actually a double-sided fft that the function normally produces. The ‘frequencies’ should pro...

mehr als 2 Jahre vor | 0

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Import data from file
This segments some of the file information into 31 individual cells of character vectors . I have no idea what you want from th...

mehr als 2 Jahre vor | 0

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make separate table for sets of lat lon that appears x times in a big table.
Use accumarray for this, however we may not be discussing the same file — T1 = readtable('who_ambient_ai...3_(v6.0).xlsx', 'Sh...

fast 3 Jahre vor | 2

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How to mark points at 1-5 on the x-axis in the plot
One possibility — clc; clear all ; Ld=(0:0.00005:0.005); w=0.001; L=0.007; P=4*0.001; Ta=25; h=375; Kf=175; Kd=0.0...

fast 3 Jahre vor | 0

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Why won't my plot start 0 and increase to 0.005 like my Ld
It does. It just uses the exponent to scale it. Add these lines: Ax = gca; Ax.XAxis.Exponent = 0; to see the tick labels...

fast 3 Jahre vor | 0

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Delete rows of excel if any empty cell found
I am not certain how you want to sort the ‘Station’ by ‘shortest to the longest’. Try this — T1 = readtable('datax.xlsx', ...

fast 3 Jahre vor | 0

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How to graph values of different lengths?
The ‘time’ vector has 10080 elements and ‘EV_power’ has 10230 elements. One way to fix that is to create: time = linspace(0...

fast 3 Jahre vor | 0

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How I can plot input signal in ode45
Create a second output for ‘u’ (ode45 will ignore it during the integration) and then return it using a for loop after the integ...

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how to use all the data for a nonlinear regression?
You can only do the regression on complete data rows, so I used the rmmissing function to accomplish that. Try something like...

fast 3 Jahre vor | 1

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Extract the timing of a specific sound (beep) from an Audio File
It would help to have the file. I assume that the background sounds also contain 300 Hz elements, so unless there is somethi...

fast 3 Jahre vor | 0

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Plotting variables of continuously array with different colors
You can use either unique or findgroups for this to get serial indices — T1 = readtable('datax.xlsx') [Us,ix1,ix2] = unique(T...

fast 3 Jahre vor | 1

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why ismember() does not return correct result
They may have very small values that are not shown, especially if they are calculated. Using the ismembertol function will li...

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