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From: MikeMike on 9 May 2007 06:40
Hi Damiano,
  Exactly correct What I mean by integrating data is to concatenate it. Since in first iteration I will be geting the data of 2 column and in next iteration i will be getting data from 3 column and next I will be getting data form 5 column. Now, to pass this data to plot the graph I have to combine(concatenate) them. So how can I do this?
 
Mike.
From: Damiano on 9 May 2007 06:40
I don't get any error if I run the VI choosing as input file an Excel worksheet with the following structure:
        A         B          C
1      11      12        13
2      21      22         23
3      31      32         33
and select, for example, the following parameters:
Start row1 col1
end row2 col3


dummy.xls:
http://forums.ni.com/attachments/ni/170/246401/1/dummy.xls
From: Damiano on 9 May 2007 06:40
I don't know what you mean when say "integrate data".
Do you want to concatenate them to obtain a unique graph or do you want to obtain 3 plots? 
From: MikeMike on 9 May 2007 06:40
Hi Damiano,
  Thanks!! Now it's working. Now my next problem is if user has given that he wants to see the graph of coulmn number 2,4,5 and rows 5 to 40 then what I should do. Using Get Excel Values vi i will provide start column as 2 and start row as 5 and end column as 2 and end row as 40, So now I will be having data of one column. Same way I can collect data from other column. Now how can I integrate the data from all this 3 column and provide it to the lab view graph vi?
 
Mike.
From: Damiano on 9 May 2007 07:10
simply use the function "build array" in the array library.
remember to right-click on it once place in the block diagram and select the "Concatenate Inputs" options otherwhise you will concatenate row-wise and obtain a matrix instead of an array.
Let me know.
 
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