MY first program in LabVIEW, please check it

This is my first LabVIEW , My program is about taking EEG signal and filter it and extrat theta and alpha waves
please could anyone check my program
Attachments:
Simulated_EEGqq1.vi ‏1115 KB

So I would arrange all of the vis so that you minimize the number of bends in wires. Also consider using subvis when you have portions of code preforming the same operations. It looks like you extract a portion of your code and then do some statistics on that portion. Consider making a subvi that you can resue. Also check out the following
LabVIEW Programming Techniques - The Good, The Bad, and the Ugly
LabVIEW Introduction Course - Three Hours
LabVIEW Introduction Course - Six Hours
Chris C
Chris Cilino
National Instruments
LabVIEW Product Marketing Manager
Certified LabVIEW Architect

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How to program in LabVIEW to check if a vi exists in a *.llb file?

This should be very simple, but I cannot find a way to do it. Can somebody help? Thanks.
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if you want to do this in code then go to openG.org and download the commander you will get a host of file vi's that will do what you want. it is free and will also give you plenty of vi's to do lots of other things
Joe.
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i want to send 10 bit ADC from PIC mCu via serial communicaton.
i send it separetly 8 bit first then the other 2 bit (2 bit --> with zero at 6 bit from LSB).
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thank you

Close, but now quite. You need to specify to the VISA Read how many bytes to read, not how many bits. Thus, the input would be 2, not 16. It's also not clear why you're trying to use the "String to Byte Array". The Type Cast will give you a number based on what data type you wired. You're basically telling it how to interpret the string. In this case we're telling it to interpret the string a 16-bit value, so we'll get a 16-bit integer. I know you said you wanted a 10-bit, but you can't have that. You'll get a 16-bit with 6 bits set to zero. Note: I did not completely understand what you said so we may need to change this slightly, but we want to get the communication and reading collection working first.
Also, since you seem to be setting this in a loop you probably want to monitor this or to collect the data. For that you need a shift register. See attached for a modified version of your attempt. You need to set the datatype to I16 or U16 based on whether the value you get from the PIC is signed or unsigned.
Message Edited by smercurio_fc on 05-01-2007 02:28 PM
Attachments:
Read PIC.vi ‏21 KB
Read PIC.png ‏7 KB

I created my first program-compiling error-help please

hey there
i just wanted my first program in java and here it is below with the eroor when i'm compiling it, i cant understand whats wrong:
public class SquareArea {
     public static void main(String[] args); {
     float length;
     float width;
     float SquareArea;
     System.out.println ("Please enter length"+ length);
     System.out.println ("Please enter width"+ width);
     SquareArea= length*width;
     System.out.println ("The area of the square is" + SquareArea);
The error is:C:\Documents and Settings\User\Desktop\SquareArea.java:5: missing method body, or declare abstract
     public static void main(String[] args); {
^
1 error
Tool completed with exit code 1

There shouldn't be a semicolon between the ")" and the "{" near the end of that line.
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Oct 10, 2011 2:13 PM
I downoland game Zombi Farma for free but I paid 239 dkk.
Here is answer from The Play Forge:
Hi Anna,
first of all, please check your receipt again,
if you've purchased anything else during the period it might appear as if it's related to Zombie Farm (Apples receipts are a bit hard to read to be honest.)
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As such you'll have to contact Apples support to get help with refunds.
You'll find it at http://www.apple.com/support/itunes/
We're sorry for any inconvenience this has caused you. :/
Ana here is receipt from my email:
Billed To:
                                   [email protected]
                                                   Anna Szczawinska
             Arildsgard30 , sttv
                                       2700 Bronshoj
                      DNK
Order Number: M2M4K45SK5
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Item
Artist
Type
Unit Price
                                            Zombie Farm, 50 Brains, Developer: The Playforge, LLC
                                                                                                                      Report a Problem
                                           The Playforge, LLC
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239.00Kr
Order Total:
239.00Kr
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              iTunes Store
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The Zombie Farms game is free but "in App" purchases during game play are not. You are being charged for the purchase of "50 brains" not for the game itself.
Note that if you purchased this game after entering your password, etc. there may be a period of time where someone can play the game and make purchases without needing to re-enter the password.
Did you give your iPod to your children to play this game?
Also, this is a user-to-user technical help forum you aren't speaking to Apple or Play Forge here. We are all just users like you here and can't issue any refunds.

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Please HELP, what am I doing wrong?
For over 5hours I have been trying to figure out how to compile a simple Hello world program using sdk1.3.1_02/j2re1.3.1_02 and I am getting the following errors: helloworld.java:2 cannot resolve symbol
symbol : class string
location : class helloworld
cannot reolve the string symbol
symbol : class out
location : package system
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SET PATH=C:\WINDOWS;C:\WINDOWS\COMMAND;C:\JDK1.3.1_02\BIN
Thanks very much in advance
::(

Java is case sensitive,
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Please check my VI and tell me if something is wrong.

    I tying to build and Simulate the dynamic
response of first order system ,
I'm new in labview , I think something is not as should be.
please check the attachment file and give me a suggestion or correct any errors that you see in the VI.
Here are the instructions I followed
y(n)= Δt       *   ( T
* y(n-1)+x(n) )
         T+Δt            Δt
Where T is the time constant, x(t) is the input and y(t)
is the output.
Experiment 1, Simulate
the dynamic response of first order system
1.
Launch LabVIEW.
2.
Create a blank VI.
3.
The front panel should have at least an numeric
control to input the time constant and the graph indicator to show the result.
4.
Drop the “Simulated Signal” express VI and
choose the signal type as square wave, frequency as 1Hz, sample frequency as
1000Hz and number of data points as 500.
5.
Use “Convert from Dynamic Data” VI to convert
the data from the “Simulated Signal” express VI to single waveform data.
6.
Use waveform function to extract the waveform
data and the time interval of the waveform.
7.
Use FOR loop to iterate the output data of the
first order system.
8.
Use the formula node to program the algorithm based
on equation 3.
9.
Use waveform function to create the waveform
data from the output data and the time interval of the input waveform.
10. Use
“Build Array” function to create an array that consists of the input and output
waveforms.
11. Use
graph indicator to show the input and output waveforms.
12. Use
“Write LabVIEW Measurement File” VI to save the data in a file.
13. Run
the VI using the following time constants: 0.01, 0.03, 0.05, 0.07 and 0.1, and
save the results to files.
Attachments:
Untitled 1.vi ‏66 KB

Hi Neoforce,
If you want i can give some help doing that program. Yours it's completly confuse. You really are new to labview.
So, if can explain what you want. I can try to do the program for you.
y=(dt/(T+dt))*((T/dt)*y1+x); it's the expression. But explain the inputs dt, T,X and y1.
What is the result that you expect to see in the graph? It's y(x)?
Software developer
www.mcm-electronics.com
PS: Don't forget to rate a good anwser ; )
Currently using Labview 2011
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My first program in Java

After I compile my first application using javac Welcome1.java
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// Fig. 2.1 Welcome1.java
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Try this
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save and close DOS
restart PC,
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http://www.javagalaxy.com

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MY first program in LabVIEW, please check it

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