fwhm
- 1 file
- 111 downloads
width = fwhm(x,y)
Full-Width at Half-Maximum (FWHM) of the waveform y(x) and its polarity.
The FWHM result in 'width' will be in units of 'x'
The code was developed by an unknown author.
Cite As
Patrick Egan (2020). fwhm (https://www.mathworks.com/matlabcentral/fileexchange/10590-fwhm), MATLAB Central File Exchange. Retrieved .
Comments and Ratings (60)
Updates
| 1.0.0.0 | No need to reassign variables 'x' and 'y'. Remove last 'else' condition. |
|
1) Remove line:
2) Replaced two two "if-end" conditions by "if-else-end" condition 3) The output argument "c" was never returned, hence it has been removed. |
||
1) Remove line:
2) Replaced two two "if-end" conditions by "if-else-end" condition 3) The output argument "c" was never returned, hence it has been removed. |
MATLAB Release Compatibility
Platform Compatibility
Windows macOS LinuxCategories
Tags
Acknowledgements
Inspired: calciumImagingAnalysis (ciapkg)
Discover Live Editor
Create scripts with code, output, and formatted text in a single executable document.
Select a Web Site
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
Select web siteYou can also select a web site from the following list:
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)
xin li (view profile)
Nice work.
Walker (view profile)
Thanks @Brandon Nichols. I update it in lines 12 and 14. Then the codes works well.
y = y - min(y); %need to subtract off minimum to span [0 1]
i = 2;
while (sign(y(i)-lev50) == sign(y(i-1)-lev50) && (i <= N-1))
maciej kowalczyk (view profile)
Rajanikant Panda (view profile)
Manoj Wijesooriya (view profile)
it work perfectly and accurately, Thank you
Mariya Maleyko (view profile)
Hi, i have a problem using your function, Could you tell me please if i am doing anything wrong.
Index in position 1 exceeds array bounds (must not exceed 1).
width = fwhm([1,2,3,4,5,6,7,8], [2,4,5,6,8,5,3,2]);
Ni Phan (view profile)
Thank you, it's simply perfect.
wenqian zhang (view profile)
hung-yu she (view profile)
It works thank you
S P-W (view profile)
So helpful. but I have a question! this code can be used for all the data?for all pulses shapes? anyone any experiences?
Nima Soltani (view profile)
pz Dang (view profile)
Lifeng Gan (view profile)
Amit Kaplan (view profile)
Sulaiman Khan (view profile)
lemon (view profile)
jiahao liu (view profile)
Thanks o(≧v≦)o
Anu D (view profile)
Vadivukkarasi Jeyaselvan (view profile)
Valeriya Perekatova (view profile)
Geoffrey Chase (view profile)
Nikita Vasilev (view profile)
Hsu-Cheng Cheng (view profile)
useful, thx!
riad didou (view profile)
hii
i have 5 pulse in my signal ...how to find FWHM for every pulse?
Thanks in advance
Kirk Truax (view profile)
Paul Bebb (view profile)
is there a reason why the widths come out negative?
418 (view profile)
Vasanth (view profile)
Can this be extended to find out FWHM of multiple culrves in a single plot and compare between the FWHM? If so, how?
krishna mohan dwivedi (view profile)
this code is not working for raised sine and raise cosine functions.
Brandon Nichols (view profile)
Add the following line to handle data with a narrow dynamic range (insert at line 12).
y = y - min(y); %need to subtract off minimum to span [0 1]
BNeto (view profile)
Great! Quite happy with it.
Rick Hsieh (view profile)
cai jason (view profile)
THANKS TO SHARING
Matthew Lee (view profile)
When I try to take columns out of my array into fwhm - e.g. fwhm(peak(:,1),peak(:,2)) - I am getting an error saying that max is undefined for 'datasets'. So there is an error in y = y / max(y).
Sorry, I have no experience with MatLab. Any help would be greatly appreciated!
Parimalah Velo (view profile)
Thank you for sharing :)
Benjamin Ficara (view profile)
I'm trying to use this on spectral data from FTIR and I'm getting the error " Attempted to access y(132); index out of bounds because numel(y)=131."
My data is 131 points. Can anyone help me figure out how to use this? I'm very inexperienced with Matlab
Rafael Ribeiro (view profile)
Ilias Giannakopoulos (view profile)
Thanks man :)
Joao (view profile)
so good
Subhajit (view profile)
thanks a lot. Finally I have got the result.
Bob (view profile)
Works as advertised, a great improvement over the simple algorithm for FWHM I was using.
Jade He (view profile)
Thank you.
Eric (view profile)
wow
the code is perfect, thanks a lot
Bakhtiyar Orazbayev (view profile)
Mikhail Konnik (view profile)
yongbiao shi (view profile)
thanks
Nicolas (view profile)
Brilliant, saved me a lot of time!
Robert (view profile)
Donald (view profile)
Simple and easy to read. I modified it to search for the falling edge from the end of the array instead of from the peak because my pulses have high overshoot at the rising/falling edges.
Tom Phillips (view profile)
Thanks
Amr Sadek (view profile)
very easy to use, thank you
Brian (view profile)
Need to add y=y-min(x) at beginning to find fwhm of data not going to zero
It does not work for noisy y(x). It keeps saying the peak is an impulse.
Superb
easy to use
Fantastic! Im so glad I found this!
Great Job !
Very easy to use!
great job!
This file's suitable to use for experimental datas.