# Star Strider

Hic sunt dracones! PROFESSIONAL: Physician (M.D.): Diplomate of the American Board of Internal Medicine; M.Sc. Biomedical Engineering: Instrumentation, Signal Processing, Control, System Identification, Parameter Estimation NON-PROFESSIONAL: Amateur Extra Class Amateur Radio Operator; Private Pilot, Airplane Single Engine Land, Instrument Rating Airplane; Gamer NOTE: I do not respond to emails or personal messages, unless they are about my File Exchange contributions.

**Statistics**

RANK**3**

of 250 313

REPUTATION**54 292**

CONTRIBUTIONS

**0** Questions

**17 179** Answers

ANSWER ACCEPTANCE **
0.00%
**

VOTES RECEIVED**7 425**

RANK**2 674** of 17 386

REPUTATION**565**

AVERAGE RATING**4.70**

CONTRIBUTIONS**5** Files

DOWNLOADS **32**

ALL TIME DOWNLOADS**5274**

CONTRIBUTIONS**0 Posts**

CONTRIBUTIONS**0** Public Channels

AVERAGE RATING

CONTRIBUTIONS**0** Highlights

AVERAGE NO. OF LIKES

**Content Feed**

Unable to plot transfer function properly by using step(tf,array)

I do not usually post multiple answers to the same question, however my original answer is in the process of being sabotaged, so...

ungefär 4 timmar ago | 0

Need help designing stopband filter

Thank you for quoting my code! The FIR filter will eliminate both frequencies in one filtfilt call to it, however they are no...

ungefär 12 timmar ago | 0

| accepted

axis off sets background color back to white despite set(gca....

If the desired result is simply to make the axes invisible, perhaps using the Axes Properties XColor, YColor, and ZColor values...

ungefär 12 timmar ago | 0

Z-Transform of numerical test data

Data are data. They exist as discrete elements in computers because (except for signal-level internal voltages and currents in ...

ungefär 21 timmar ago | 0

Code not working?

It plots correctly if ‘f_f’ is defined correctly. The middle value for colon-operator generated sequences is the ‘step’ value, ...

ungefär 21 timmar ago | 1

Unable to plot transfer function properly by using step(tf,array)

It may not be the desired result (I have no way of knowing what that is), however it appears to be exactly what step was asked t...

ungefär 22 timmar ago | 0

How do I count certain values within a column of a table?

One approach — MajorAxisLength = 30*rand(15,1) Lv = (MajorAxisLength >= 5) & (MajorAxisLength <= 26) MeetCriteria = nnz(Lv...

en dag ago | 0

Can matlab 2012b run on windows 11?

No. Only R2021b and later releases support Windows 11. See Platform Road Map for the MATLAB and Simulink Product Families ,...

en dag ago | 0

| accepted

Pulling certain data from a text file into Matlab with strsplit

Try something like this — % opts = weboptions('ContentType','text'); % M = webread('https://www.mathworks.com/matlabcentral...

en dag ago | 0

How to fit data!

This is something similar to Curve Fitting of large Data Measurement? however with a different sort of envelope. I would begin ...

en dag ago | 0

| accepted

How to group data according to date in years?

Since 'dayofyear' won’t work, break the dates down into two new variables, specifically the day and the month, then group on the...

en dag ago | 0

| accepted

How to label the farthest x point

Consider perhaps ... v0=75;%initial velocity of 75m/s g=9.81;%force of gravity 9.81 m/s^2 theta=[0:(pi/100):(pi/2)]; %values...

2 dagar ago | 0

High-precision IFFT

Since it appears that these calculations are all symbolic, one option would be the ifourier function, or if you are using your o...

2 dagar ago | 1

| accepted

How to calculate Area under a curve (negatif side)

I went with the patch function because I’m more familiar with it. Try ths — f = [-0.390930468901234 -0.346778353936444 -0.3...

2 dagar ago | 1

| accepted

how to calculate wavelength of texture ?

Consider using the smoothdata function to eliminate the high-frequency noise. After that, first, use the detrend function to re...

3 dagar ago | 0

| accepted

Curve Fitting of large Data Measurement?

Try this — T1 = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded_files/871405/Measurement%20Data.xlsx', '...

3 dagar ago | 1

| accepted

I want to write this transfer function (0.7/s^2)*sin(0.05) in MATLAB code, but sine make it complicated. Kindly, how can I make that?

Since the sin call creates a constant and is not itself a function of ‘s’, evaluate it first and then just multiply it as with a...

5 dagar ago | 0

| accepted

About Adding Lines to Your startup.m file

See the documentation on startup I believe that it now has to be in (Windows machines): C:\Users\<UserNAme>\Documents\MATLAB...

5 dagar ago | 0

error with changing color of marker using scatter3

This is the best I cand o. See Plot Table Data with Custom Marker Sizes and Colors for a more extensive discussion. Tabl...

5 dagar ago | 0

How to convert time column into a regular array?

If the time series are a datetime array, they can easily be plotted as funcitons of that variable. It would be best to convert ...

5 dagar ago | 0

| accepted

Loop to replace outliers with NaN extremely slow

The way the table addressing is coded is likely the problem. I’m not certain, however using parentheses () addresses the tabl...

5 dagar ago | 0

| accepted

How can i increase significant digits beyond 5 in basic fittings option in Matlab?

There are a few options, one being ytickformat (R2016b and later) and the other being the NumericRuler Properties, Exponent prop...

5 dagar ago | 0

Average of two dataset

I cannot reproduce that problem here (R2021b). However, to compare all values for both curves, the (x1,y1) values need to be ...

5 dagar ago | 0

| accepted

I cannot extract data from syms surface plot: Struct contents reference from a non-struct array object

I can’t run the posted code because there are missing elements. Neverhteless, everything necessary to extract the data and re...

6 dagar ago | 0

| accepted

can't find line of best fit from simple code

The first argument to plot must be the independent variable vector. When I added that, it works! (I broke out the polyval ca...

6 dagar ago | 0

| accepted

A compact way to find elements of an array which are greater, equal, or less than the elements of a second array

To check all the elements against each other — a1 = [0 4 7 8 1 2 3]'; a2 = [4 4 6 9 9 1 1]'; Check = sign(a1 - a2.') ...

6 dagar ago | 1

Generate new samples from available data

This seems to be an interpolation problem, such that the original data are created by the original values, and the desire is the...

6 dagar ago | 0

| accepted

Error "Cannot Create Output File" When Trying to Save Figure

I don’t often use print however it appears that the first argument needs to be the file name to print to. The argument order is...

7 dagar ago | 0

How to call a function with multi variable in real coded GA in function handle and how to define upper and lower bound of that variable in matlab?

If ‘Torque’ is the fitness function, it should be coded as: function T = Torque(p) % % % MAPPING: a = p(1), b = p(2), c = ...

8 dagar ago | 0

| accepted