Re: [NBThelp] Help with DFA using NBT

[Michael M. <mel...@gm...>]

'Firls' not girls....sry autocorrect

On Wednesday, November 30, 2016, Michael Melnychuk <mel...@gm...>
wrote:

> Hard to say without seeing the data but I would try removing the transpose
> operator in girls at line 80 or something along those lines and go from
> there.
>
> On Wednesday, November 30, 2016, David Fernandez-Fidalgo <
> dfe...@me...
> <javascript:_e(%7B%7D,'cvml','dfe...@me...');>> wrote:
>
>> Hello:
>>
>> My name is David Fernandez-Fidalgo and I am a researcher at the National
>> Intrepid Center of Excellence (NICoE) at Walter Reed Naval Hospital in
>> Bethesda, MD. I have been trying to teach myself how to use NBT to perform
>> DFA on MEG data and calculate the DFA exponent for various datasets. I have
>> been using the information and examples on the wiki page (
>> https://www.nbtwiki.net/doku.php?id=tutorial:detrended_fluc
>> tuation_analysis_dfa#computing_dfa_using_nbt) to learn how to remove
>> artifacts from the signal and perform DFA. I keep running into an error
>> every time I try to use the "nbt_filter_fir" function to filter a matrix of
>> random numbers "Fs = 300; Signal = randn(20*60*Fs,1);" from the example
>> provided in the wiki. The error I keep observing is:
>>
>> "??? Error using ==> mtimes
>> Inner matrix dimensions must agree.
>>
>> Error in ==> firls at 80
>> cos_ints = [omega; sin((1:N)' * omega)];
>>
>> Error in ==> fir1 at 98
>> hh = firls(L-1,ff,aa);
>>
>> Error in ==> nbt_filter_fir at 108
>> b = fir1(floor(fir_order*fs),[hp lp]/(fs/2));
>>
>> Error in ==> test at 14
>> [Data_filtered] = nbt_filter_fir(Signal, highpass, lowpass, Fs, 2/8);"
>>
>> Do you have any suggestions for how I can resolve this error and filter
>> the dataset?
>>
>> Thank You,
>> David FF
>> ------------------------------------------------------------
>> ------------------
>> _______________________________________________
>> The NBT help mailing list.
>>
>> Visit our webpage:
>> http://www.nbtwiki.net
>>
>> LinkedIn: http://l.nbtwiki.net/nbtlinkedin
>> Facebook: http://l.nbtwiki.net/nbtfacebook
>>
>> Do you need help with NBT?, see
>> http://l.nbtwiki.net/HRIMOF
>>
>> Get involved, see
>> http://l.nbtwiki.net/HRf5Ns
>>
>> To unsubscribe write a mail to nbtoolbox-help-request@lists.
>> sourceforge.net with 'unsubscribe' in the subject line (without ' ')
>> Or go to the mail-list administration page to unsubscribe:
>> https://lists.sourceforge.net/lists/listinfo/nbtoolbox-help
>>
>>
>>