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1000 Threads found on edaboard.com: **Subplot Command In Matlab**

hi! an older version of **matlab** performs the FINDTHETA **command**. what is the equivalent **command** in **matlab** version 7? thanks!

PC Programming and Interfacing :: 05-29-2007 03:39 :: fatimajoy :: Replies: **1** :: Views: **990**

hi all,..
i have a problem in **matlab** and i urgently need the solution,..
what is the **command** to display a scope output located in a specific model.
thanks a lot

Software Problems, Hints and Reviews :: 02-12-2006 07:26 :: hesho13 :: Replies: **0** :: Views: **547**

There is a direct **command** in **matlab** for images subtraction i.e.
I = imread('rice.tif');
Iq = imsubtract(I,50);
**subplot**(1,2,1), imshow(I)
**subplot**(1,2,2), imshow(Iq)
You can use any weighing factor with that.
Regards
Robin

Digital Signal Processing :: 01-01-2007 11:13 :: Robinenemy :: Replies: **1** :: Views: **3535**

hi! Why is that when I ran a program in **matlab** with findtheta **command** an error is dispalyed that undefine **command**/function 'findtheta'. thanks!

Digital Signal Processing :: 05-31-2007 04:40 :: fatimajoy :: Replies: **2** :: Views: **995**

Hi guys I am trying to compute the transfer function for block diagrams in series and parallel USING **matlab** and I will like to know how to use the parallel and series function/**command**.
thanks

Software Problems, Hints and Reviews :: 06-02-2007 15:10 :: gregstar :: Replies: **1** :: Views: **1603**

hi
first you need to define n , as a matrix
n= 1 : 1 :128 ;
and then write down the equations
and then if you want to plot the two signals in the same graph you use:
graph
**subplot**(3,1,1); plot(x1)
title('...............');
**subplot**(3,1,2); plot(x2)
title('.......................');
that for example how to use multi

Digital Signal Processing :: 04-05-2010 17:12 :: Aya2002 :: Replies: **3** :: Views: **1483**

hello
i use subs **command** in my **matlab** programm:
i want to get F in numerical mode,F obtained from integral of f1/f2 in x variable
F=int(f1/f2,x);
I defined all the parameters like f1 and f2 in **matlab** program
but when i use subs **command** for getting F in numerical mode :
F=subs(F)
it gives me: (...)

Electronic Elementary Questions :: 01-27-2011 07:19 :: mina.nms :: Replies: **1** :: Views: **1072**

Hi all im currently trying to design a guitar tuner in **matlab** and am new to this. Currently I record my string using the following code then bandpass filter it and then FFT it. I get the right result but I now need how to detect my peak so that I can look if it is on tune or not as my code just loops and records agian if the detection is high eno

Digital Signal Processing :: 05-15-2009 09:11 :: jags802 :: Replies: **1** :: Views: **2375**

Hi;
I have a problem with using udp **command** in **matlab**.
from the sending end i send in data. on the receiving end i received the data with data (packets) lost.
Can any one please guide me where the problem is. ?
the size of my receiving buffer is 8192 Bytes and the data is send continuously.

Robotics and Automatics Forum :: 11-13-2009 11:11 :: engr_najam :: Replies: **1** :: Views: **1861**

Hi i have a signal that periodically repeat a structure, i need to find in that signal the structure, which i know previously. For doing that i was thinking about doing the correlation between the big signal and the signal of interest but i do not know how to implement it in **matlab**.
please help me!
thank you very much

Digital Signal Processing :: 07-05-2010 09:09 :: sirdivi :: Replies: **1** :: Views: **1957**

hi
how can I run an external program(or a DOS **command**) in **matlab** ?
I want to run hspice in **matlab**
thanks

Analog IC Design and Layout :: 07-06-2010 14:28 :: roohnakh :: Replies: **1** :: Views: **1049**

Hello,
I need ur help.
There is a program written in C language by which a **command** has been explained and introduced. Now I want to use that **command** in **matlab** so **matlab** should know this **command**...This **command** is used to produce the impulse response of a room which is in fact the allen (...)

PC Programming and Interfacing :: 11-23-2010 17:53 :: adny :: Replies: **3** :: Views: **607**

I am calculating power spectral density in **matlab** of some data I collected. The various power spectral density calculation methods that **matlab** provides return y axis units in db/hz, power/frequency. I need to get a plot where the Y axis is in V/rtHz. My question is, is there a **command** in **matlab** that will make that (...)

Digital Signal Processing :: 06-29-2011 14:42 :: bababui :: Replies: **0** :: Views: **2057**

Hi
i have a question regading impulse response. I have poles and zeros and i can easily evaluate transfer function using tf **command**.
Now i want to get impuse response in terms of time domain variables. I want to evaluate impuse response from the given poles and zeros. What **command** i have to use?

Software Problems, Hints and Reviews :: 07-30-2011 21:35 :: syeda amna :: Replies: **4** :: Views: **750**

Hi everyone,
I'm currently writing a **matlab** problem that has one of this **command** line x^4+c3*x^3+c2*x^2+c1*x+c0=0. My aim is to come up with the values of x. All the c3,c2,c1,c0 parameters have been properly defined. However it keeps showing the Error File that the assignment statements cannot produce a result. Could I ask why is this so?

Software Problems, Hints and Reviews :: 01-23-2005 09:33 :: evoplus :: Replies: **3** :: Views: **839**

you can use **subplot**(N,1,n), plot(...), xlabel(' '), ylabel(' '), title(' ') for each

Electronic Elementary Questions :: 02-05-2008 21:58 :: brmadhukar :: Replies: **7** :: Views: **1230**

Heia....
I Need Help in **matlab** **command** with QPSK for ZeroForcing and ask about something if i have
N=2;
Symbols = ';
1- How to make X choose a 2 random from Symbols ?
2- How to calculate the closest consellation point for each decoded received Symbol ?
3- How to move each calcu

Digital communication :: 08-17-2010 10:13 :: junkers :: Replies: **0** :: Views: **510**

Hello All,
This might sound a little bit odd but I have been using **matlab** from the past 1 year though I have been using it for my class assignments and project I don't know why I don't have good **command** in is there any book which could actually teach programming in **matlab**...
Thanks in Advance

Software Problems, Hints and Reviews :: 12-16-2010 17:12 :: harsha_avunoori :: Replies: **0** :: Views: **503**

I am using **matlab** 2011a at school and the **matlab** code is working fine. However I am working the same code on my old version **matlab** 7 on my laptop, this code "modem.qammod" give an error. What **command** I should use instead of modem.qammod in **matlab** 7
Thank you.

Digital Signal Processing :: 01-29-2013 19:32 :: mazdaspring :: Replies: **0** :: Views: **933**

how can I use **matlab** to send and receive digital data through parallel port

PC Programming and Interfacing :: 10-14-2003 10:57 :: Al Farouk :: Replies: **3** :: Views: **2930**

Hi all :
I'm working with **matlab** for my projects , but I've encountered with a problem . please help me. that problem is :
i must write some large equation in **matlab** but I usauly make a mistake and how can I recognize the number of parenthesis.
thx for your attention.

Software Problems, Hints and Reviews :: 01-13-2005 12:53 :: Marshal :: Replies: **2** :: Views: **769**

i have a question:
i want to check if some values are inside a matrix in **matlab**.... how can i do this without writing loops ... does there stand a find **command** (i wish i could right find(this number, in this matrix) ).... thanks in advance!!!

Electronic Elementary Questions :: 01-23-2005 13:21 :: ramone :: Replies: **3** :: Views: **7020**

Please how can I filter a signal in **matlab** using a filter
impulse response not as a polynomial but just
as an expression h(t)

RF, Microwave, Antennas and Optics :: 02-08-2005 13:08 :: 555EDU :: Replies: **3** :: Views: **1132**

hi,
pretty easy code.
there are functions in **matlab**. the "find" function along with "max" and "min" can be employed to get what u desire for. even find is not necessary unless u want to get the index of those values..
suppose ur matrix is a = magic(5);
then max(a) will list out 5 values, with each value the max of the columns of "a". c

Software Problems, Hints and Reviews :: 04-07-2005 13:46 :: cedance :: Replies: **0** :: Views: **1572**

I do have a S(f) calculated and now I made a x-y coordinate system using this code
**subplot**(2,2,1);
semilogx(f,real(S11));
xlabel('Frequency');
ylabel('Real(S11)');
title('Real(S11) = Real(S22)');
grid;
As a figure I get empty drawing so i'm interested how to plot the line for the S that i have calculated.What is the co

Software Problems, Hints and Reviews :: 04-26-2005 13:50 :: Meklaud :: Replies: **4** :: Views: **1450**

hi,
if i understand you rigth, you want to zero pad a matrix, rigth.
well usaly you do it in order to do soom calc on it, and most of the **matlab** function do contain another argomant that tells them to zeropad it's inputs before using it.
so you should chack with the help XX about whtere your function has this,
and any way here's a code that doe

Digital Signal Processing :: 04-26-2005 02:53 :: g_iftah :: Replies: **2** :: Views: **6738**

HI friends
I'm working on a COntrol project using **matlab**
Using the **command** MARGIN
I've noticed a strange thing that when:
=margin(sys)
margin(sys)
each **command** get a different Gm...
there is a different of about (1-->4)db not the same
Why??
Please I need a rapid response

Embedded Systems and Real-Time OS :: 05-12-2005 21:54 :: extradeath :: Replies: **0** :: Views: **710**

HI friends
I'm working on a COntrol project using **matlab**
Using the **command** MARGIN
I've noticed a strange thing that when:
=margin(sys)
margin(sys)
each **command** get a different Gm...
there is a different of about (1-->4)db not the same
Why??
Please I need a rapid response

PC Programming and Interfacing :: 05-12-2005 21:58 :: extradeath :: Replies: **1** :: Views: **658**

Hello all,
How to do "if (x==1 && y==0)" in **matlab**, the "if (x==1 && y==0)" is in C. Thanks!
Davy

Software Problems, Hints and Reviews :: 05-17-2005 11:56 :: davyzhu :: Replies: **4** :: Views: **7062**

In **matlab**, there are two functions that can represent convolution function.
one is CONV, the other is FILTER.
But, their output point numbers are different.
As bellowing example, stp_rep2 is twice times length than stp_rep3.
Which one is more reasonable?
stp_rep1=filter(b,a,x_imp);
stp_rep2=conv(x_in,stp_rep1);
stp_rep3=filter(b,a,x_in);

Digital Signal Processing :: 05-28-2005 04:42 :: david753 :: Replies: **2** :: Views: **6773**

Hi all;
is ther any way in **matlab** to convert a 1×n matrix to n×n matrix
thx.

Digital Signal Processing :: 06-26-2005 09:25 :: Marshal :: Replies: **1** :: Views: **676**

hi,
i need to read a bin file in **matlab**...for which i use fread **command**..
fread(fid,samples needed,format)..problem is i dont know the format( have tried different combinations..its not working)...how shld i write a code to read..
to be precise its a eeg recorded bin file with 59 channel recording...how to read that into **matlab**..any (...)

Mathematics and Physics :: 11-02-2005 23:11 :: veer :: Replies: **2** :: Views: **4042**

what is the **command** to do wavelet transform in **matlab**. i want to do jpeg compression in **matlab**.

Digital Signal Processing :: 01-02-2006 05:22 :: rednewguy :: Replies: **9** :: Views: **3371**

hi
cany any one help in matlb formats...i want to reduce to gape b/w the bits in a no. e.g. 1 0 1 0 is the binary no. i want this no. as 1010..i.e. without the space b/w the bits..or vice versa.can i do so using **matlab**?
thanx in advance
Mona

Mathematics and Physics :: 01-07-2006 13:15 :: mona_c :: Replies: **4** :: Views: **4488**

hai,
in **matlab** i need to get all of the filter coefficients like 7.105427357601002e-015
but i got this only 7.1054e-015
what i mean i need to get the full value,not the rounded value.
please how can initialize this?
help me

Digital Signal Processing :: 09-08-2006 01:57 :: geetha :: Replies: **1** :: Views: **813**

hi i need help in reading a image in 3-dimension in **matlab**..
can any one get me the code for reading such a image..
i have tried imread but that 3rd dimension is bit difficult to be read...
also i need help in how to obtain DWT for a 3D image...
its urgent ...

Digital Signal Processing :: 10-02-2006 08:05 :: cshyamanand :: Replies: **7** :: Views: **1414**

what does "freqz()" in **matlab** mean????
Added after 8 minutes:
im doing a filter design...
pls help me..
in the figure..how can i determine the response using that funtion??

Electronic Elementary Questions :: 10-03-2006 04:05 :: leoren_tm :: Replies: **14** :: Views: **4148**

Hi !
If anybody who have the resizing program in **matlab** , plz forward to
me.
I am expecting your reply soon.
I need program for reducing the size of the image at different pixel levels i.e 128,64,32..
ThankYou.

Digital Signal Processing :: 10-04-2006 05:41 :: Yesubai Rubavathi :: Replies: **1** :: Views: **663**

plz help me
in webcam with dsp for dideo compression

Digital Signal Processing :: 10-30-2006 18:01 :: eng__mohamed :: Replies: **1** :: Views: **675**

is it possible to visualize poles and zeros of any transfer function in **matlab**????? and if possible can someone suggest how to go about it as i have never used **matlab** their some simple way to do my analysis where is simple put positions of poles and zeros of my system in it and it shows me 3D diagrams of these P-Z in s-plane.

Analog Circuit Design :: 11-01-2006 21:29 :: engrvip :: Replies: **3** :: Views: **998**

Hi there,
I looked up in the help but couldnt get a good example on how to plot a 3D curve in **matlab**.
I need to plot z =x^2+16*x*y^3 + 64*y^6 + 2*(x-2*xy-4)^4 how can I do this?

Mathematics and Physics :: 11-20-2006 08:47 :: claudiocamera :: Replies: **6** :: Views: **8173**

Hi there,
I'm faced some problem in plotting graph in **matlab**. What is the meaning of 'b-' in the following code? Thanks in advance.
**matlab** code
% Plot the interpolated curve.
plot(xys(1,:),xys(2,:),'b-');
hold off

PC Programming and Interfacing :: 12-21-2006 20:41 :: Chest :: Replies: **5** :: Views: **840**

Hello, is there anyone know about state space theory?
I wish to know how a random digital signal and the channel coefficient can be transform into state space domain in **matlab**.
Please teach me about this subject or give me some website or notes about the question.
Thank you.

Mathematics and Physics :: 12-26-2006 21:13 :: Mr. Grey :: Replies: **1** :: Views: **896**

i'm doing my final project, about fingerprint recognition.
i can delete all the information that stored in database in one time.
but i'm hving problem in delete an user's information and keep the other's in database.
i always delete all the database,
plz help....
thank a lot...

Digital Signal Processing :: 01-15-2007 14:09 :: kplee :: Replies: **2** :: Views: **1196**

AoA to ALL!
I want to read a sound file in **matlab**, and set the sampling frequency to 8K. and represent each sample in 8-bits. play the result and also plot the frequency spectrum. i expect the spectrum should be from 0 to 4khz. plz tell me how to do all these in **matlab**.
simple & early reply is required.

Digital Signal Processing :: 01-25-2007 05:40 :: techspeaks :: Replies: **2** :: Views: **2376**

hi everybody
i want to know how i can implement wavelet decomposition for Daubechies 9.7 filter.
i hav'nt found this filter in dwt2 or wavedec2 **command** in **matlab**'s help.
could somebody kindly help me.
thanks in advance

Digital Signal Processing :: 02-03-2007 03:51 :: bhzd_b :: Replies: **13** :: Views: **3704**

HI
any one of u know how to generate 64 qam in **matlab** 6.5
please help me
thanks in advance
regards
venkatesh

Digital communication :: 02-17-2007 06:50 :: venkateshkumar :: Replies: **8** :: Views: **12285**

Hi,
Anybody can tell me how to implement Cholesky decomposition in **matlab**?

Digital Signal Processing :: 02-18-2007 14:19 :: malaya.nath :: Replies: **1** :: Views: **1607**

hi,
how to print colour text in **matlab**?..
with thanks n regards
vanathi

Software Problems, Hints and Reviews :: 03-15-2007 23:49 :: vanathidevi :: Replies: **5** :: Views: **2464**

i need to use overlapping blocks to perform Gabor filter on fingerprint images.
I'm new to **matlab**...then how can i release it in **matlab**?

Digital Signal Processing :: 03-23-2007 16:06 :: t43 :: Replies: **2** :: Views: **1869**

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