How to efficiently create a single waveform based on data from two other waveforms?

I have a 1-D array of waveform with size = 4 that contain "raw" potentiometer voltage data. I need to manipulate waveform data from index 0 & 1 using the formula shown below to derive a single waveform of angle data. I need to do the same for index 2 & 3 as this is a redundant circuit. I was hoping that the formula node can work on entire arrays and although it can take an array as input, it requires me to index the array in the formula so it becomes a scalar value.
Since the formula is relatively complex, I'd like to keep it in text form but have it automatically work on each point of the two input arrays. This math is done inline with pulling data out of a DAQ and so I need it to be as efficient as possible so that I don't spend too much time on it and potentially overflow the DAQ buffer.
The naive solution would be to wrap the formula nodes with for loops, but I don't know if this is this is an efficient way to do this. I would appreciate any suggestions on how best to tackle this.
Thanks!
Solved!
Go to Solution.

Here's how I would do it with no formula nodes or loops requied:
If you want to use the formula node, then you could run a loop inside each formula node while you index through the arrays. The performance difference between formula nodes and the graphical approach should be insignificant. Note that my approach assumes that the array sizes are the same. You could also create a sub VI to contain the math so you don't have to maintain two copies of the same piece of code.
Chris M

Similar Messages

How to create a report to bring all data from two different Info providers

Hi All,
I have a peculier problem while creating a report. I have two custom info providers one DSO and another Cube. There are only two common fields between these two Info providers . I need to create a report such that the report displays all the values from DSO but user can have the selection option on one of the fields in the Cube.
Here is an example
DSO Contents:
DocNum-     DocItem-     DocText-     Amount-      Quantity
10000----     10----            ABC----          100----           10
10001----     20----     DSN----     200----     10
10005----     20----     DSN----     200----     10
Z1003----     10----     CAN----     500----     1
Cube Contents
DocNum-     DocItem-     Date-----          InvoiceAmt
10000----     10----     1/10/2009----         50
10001----     20----      2/20/2009----        100
10005----     20----      2/25/2009----        100
The report needs to be displayed as shown below when the user selects value for date from 1/10/2009 to 2/20/2009
DocNum-     DocItem-     DocText-     Amount-      Quantity
10000----     10----     ABC----     100----     10
10001----     20----     DSN----     200----     10
I hope this was clear for you to understand. I would really appricate if any one can answers about how to resolve this problem. I cannot add the date filed to DSO and I also have Doc Num and Item as the user selection fields in the report.
Thank you all in advance and i would really appreciate for your suggestions.
Regards
Chinna
Edited by: chinna2479 on Mar 3, 2009 7:38 PM
Edited by: chinna2479 on Mar 3, 2009 7:39 PM

Hi chinna,
Two possible options, I can think of now, but both of them may be a compromise with performance.
1. create an infoset and then a query on top of it, provided we have a one to one relation in both the targets. That is, the combination of doc and item number is not duplicate in either cube or ODS.
2. Create a master data object of doc and item number and have date as an attribute. Load that from cube data and make date as navigational attr.
Use this navgntal attr for selection in your report.
Let us know, if you require any further info.
Naveen.A

How do I extract Data from a 1D Waveform into individual channels to be used for calculations on a live data page

Hello All,
I am a fairly new user to Labview and am currently creating a program that: monitors sensor inputs from various CompactDAQ modules (9213, 9217), does error checking, then uses the data in some final calculations, such as averaging etc. I have put together a small piece of code that includes the main functions that I am trying to accomplish. Right now I am fairly comfortable with getting the channels set up and assigned, then passing this data into a while loop that continually pulls data from these sensors.
I have the calculations vi complete and the channel inputs UI complete, now I am working on the reading and data manipulation side of things. The 1D Waveform that is coming out of read function is being broken up into the components that I am interested in (String Name and Y data). It then pass this information out of the loop through a queue which passes it along to the parallel loop below which will perform the error checking and the averaging calculations. There are some things that complicate this. I have shown 2 sensors in my example, but in the actual program, there can be up to 400 inputs. The issue is that not all these sensors will be used on every test that the software is used for. To use the inputs in the test VI as an example: If I am trying to average these 2 inputs to create a common value, but then on one test, sensor 2 is not there, it needs to recognize this and not use this in the averaging function.
So to get right down to it, I want to create something that can look through the clusters of data from the 1D Waveform, determine what these values are, then do the necessary functions to those numbers once they are identified, then pass them onto the Calculations VI where it then displays the usable information for the user. I think I am having an issue with determing how to sort as everything I have thought of makes me think there has to be an easier way.
Has anyone encountered this? Does my explaination of what I am trying to do make sense? Let me know and I can clarify.
Solved!
Go to Solution.
Attachments:
Channel Testing.vi ‏43 KB

As far as functionality goes, I don't see anything wrong. when it comes to efficiency you need to keep some general pointers in mind. These issues which I'm bringing up will not affect your code currently since your array sizes are small but can start creating memory fragmentaion and slow down the software if your array sizes are much larger and the software runs for a long period of time.
1. Try not to use Build Array. Each time you use a built array labview creates a copy in the memory. Try to initilized your arrays and replace the subsets.
2. as much as you can try not index arrays or unbundle cluster multiple times. try to perform as many tasks as possbile in one shot. (this was evident in your second loop)
Besides that it's looking good.
I made a few modifications to your code and attached it. I wanted to give you a different take on it as it relates to being able to control the inputs and outputs programitically, if you had a look up table. I didn't make the same modifications to your second loop but I can guide you through what needs to be done if you would like to move in this direction. Again your original code is well done for someone who is new to labview so don't feel like you need to follow the new VI design. Just try to remove the build array and multiple indexing as a good programming habbit.
www.movimed.com - Custom Imaging Solutions
Attachments:
Channel Testing.vi ‏41 KB

Creating a single chart based on two data providers in webtemplates

Hi All!
Is there a way to design a webtemplate where a single chart is displayed from two different dataproviders. my requirement is to display a chart which gets its data from two different queries which have simmilar keyfgures and simmilar dimentions. note that we cannot have a single query .
any suggestion is a welcome and will be appreciated with points.
with regards
ashwin

Hi!
good suggestions
1)With APD:- These quereis are based on variable which selects a charecteristic which is outside the cube and it has M:N relationship with the Charecteristic in the cube. sooo It is not optimal to call APD each time i want to use the query and more over i can not have a Seperate infoprovider just for one query which is verydynamic and changes more than once in a data
2)cannot create a multiprovider because one charecteristics BP group is in M:N relation with Business parner charecteristic in some 3 cubes. and if I create a multiprovider i can not restrict the contents based on group only valid option might be to use infoset but it performance wise its not a good solution
3) with BSP do you mean eachtime when we want use the query with a different restriction do we need to execute this BSP application with a variable and then fill the datasources and then activate the table and then check the query??? or you mean something else..can you please explain a bit... more about the concept.
with regards
ashwin

Can I create a Stored Procedure That access data from tables of another servers?

I'm developing a procedure and within it I'm trying to access another server and make a select into a table that belongs to this another server. When I compile this procedure I have this error message: " PLS-00904: insufficient privilege to access object BC.CADPAP", where BC.CADPAP is the problematic table.
How can I use more than one connection into an Oracle Stored Procedure?
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Can I create a Stored Procedure That access data from tables of another servers?

You need to have a Database Link between two servers. Then you could do execute that statement without any problem. Try to create a database link with the help of
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Creating a external content type for Read and Update data from two tables in sqlserver using sharepoint designer

Hi
how to create a external content type for Read and Update data from two tables in sqlserver using sharepoint designer 2010
i created a bcs service using centraladministration site
i have two tables in sqlserver
1)Employee
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i want to just create a list to display employee details from two tables
empid firstname deptno location
and same time update in two tables
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When I try to create an external content type based on a view (AdventureWorks2012.vSalesPerson) - I can display the data in an external list. When I attempt to edit it, I get an error:
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I gave my Mom new iPad - she's forgotten her pass code. She has now been locked out and told her "iPhone is disabled". How do I help her? We are 2 provinces away from each other!

I gave my Mom an iPad. She has created an Apple ID (twice) and forgotten her pass code. She has now been locked out and told her "iPhone is disabled". How do I help her? We are 2 provinces away from each other!
She is 75 and frustrated! How do I walk her through this?
Diane

Locked Out, Forgot Lock or Restrictions Passcode, or Need to Restore Your Device: Several Alternative Solutions
1. iOS- Forgotten passcode or device disabled after entering wrong passcode
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iPad,iPod,iPod Touch Recovery Mode
You will need to restore your device as New to remove a Restrictions passcode. Go through the normal process to restore your device, but when you see the options to restore as New or from a backup, be sure to choose New.
You can restore from a backup if you have one from BEFORE you set the restrictions passcode.
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Problems creating a view that's a union of two other views

Hello all you Oracle folks,
I'm pretty new to this Oracle thing, coming over from SQL Server where life was simple. Here's my issue;
I am trying to create a view that is a union of two other views.
I can run the top SELECT of this view (before the UNION) and it works no problem, and I can run the bottom SELECT (after the UNION) and it also works with no problem. I can run a DESC on both views involved, and those also work without any problem.
When I try to run the SQL all together though, I get this;
SQL> CREATE materialized view trkmaster.cmp_pmr_union refresh force ON demand AS SELECT 'CMR'
2 "Ticket_System", "Id_col" "Ticket", "Submitter", "Submit_Date", "Submit_To",
3 "Actual_Activity_Start_Date" "Start_Date", "Actual_Activity_Start_Time" "Start_Time",
4 "Actual_Activity_End_Date" "End_Date", "Actual_Activity_End_Time" "End_Time",
5 "Close_Date", "Risk_Level" "Level", "Activity_Type" "Type", "Activity_Category"
6 "Category", "Hardware_Name" "Hardware", "Platform", "Application_Name" "Application",
7 "Completion_Status" "Status", "Area_CMPO" "Owner", "Outage_Minutes" "Total_Outage_Mins",
8 "Acorde_Downtime__in_minutes_" "Acorde", "Atlas", "Corporate_Email_Downtime"
9 "Corporate_Email", "Data_Warehouse_Downtime__In_M6" "Data_Warehouse",
10 "E__Commerce_Downtime__In_Mins_" "ECommerce", "FMDS__FIVR_" "FMDS_FIVR",
11 "FMDS_Hotels_Downtime" "FMDS_Hotels", "FMDS_Internet_Downtime" "FMDS_Internet",
12 "FMDS_Resv__Ctr_Downtime" "FMDS_Resv_Ctr", "GDS_Downtime__In_Mins_" "GDS",
13 "HI_Online_Downtime__In_Mins_" "HI_Online", "Holidex__CRO____In_Mins_" "Holidex_CRO",
14 "Holidex__Hotels____In_Mins_" "Holidex_Hotels", "Hyperion_Essbase",
15 "IHGMail_Downtime__In_Mins_" "IHG_Mail", "Kofax_Downtime__in_minutes_" "Kofax",
16 "PeopleSoft_Fin_Downtime_In_Mi1" "Peoplesoft", "PERFORM__HIRO____In_Mins_" "Perform_HIRO"
17 FROM CMP.CHRQVCHANGE_MANAGEMENT_REQUEST UNION SELECT 'PMR' "Ticket_System", "Id_col"
18 "Ticket", "Submitter", "Submit_Date", "Submit_To", "Problem_Start_Date" "Start_Date",
19 "Problem_Start_Time" "Start_Time", "Problem_End_Date" "End_Date", "Problem_End_Time"
20 "End_Time", "Close_Date", "Severity_Level" "Level", "Problem_Type" "Type",
21 "Occurrence_Type" "Category", "Hardware_Name" "Hardware", "Platform", "Application_Name"
22 "Application", "Close_Code" "Status", "Problem_Owner" "Owner",
23 "TOTAL_Outage_Time__If_Any_" "Total_Outage_Time", "Acorde_Downtime__in_minutes_" "Acorde",
24 "Atlas", "Corporate_Email_Downtime" "Corporate_Email", "Data_Warehouse_Downtime__In_M6"
25 "Data_Warehouse", "E__Commerce_Outage_Time__Mins_" "ECommerce", "FMDS__FIVR_" "FMDS_FIVR",
26 "FMDS_Hotels_Outage_Time__In_M5" "FMDS_Hotels", "FMDS_Internet_Outage_Time__Mi4"
27 "FMDS_Internet", "FMDS_Resv__Ctr_Outage_Time__M3" "FMDS_Resv_Ctr",
28 "GDS_Outage_Time__Mins_" "GDS", "HI_Online_Outage_Time__In_Min2" "HI_Online",
29 "Holidex__CRO____In_Mins_" "Holidex_CRO", "Holidex__Hotels____In_Mins_" "Holidex_Hotels",
30 "Hyperion_Essbase", "IHG_Mail_Outage_Time__In_Mins_" "IHG_Mail",
31 "Kofax_Downtime__in_minutes_" "Kofax", "PeopleSoft_Fin_Downtime_In_Mi1" "Peoplesoft",
32 "PERFORM__HIRO____In_Mins_" "Perform_HIRO" FROM PMR.CHRQVPROBLEM_MANAGEMENT;
"PERFORM__HIRO____In_Mins_" "Perform_HIRO" FROM PMR.CHRQVPROBLEM_MANAGEMENT
ERROR at line 32:
ORA-00942: table or view does not exist
The 'CMR' and 'PMR' as Ticket_System is me trying to assign a literal as a newly created column.
All the data types match from one view to the other.
If I switch around the SQL so the 'CMR' view is at the bottom and the 'PMR' view is at the top, it still errors out on the 'PMR' view as not existing, even though I can DESC it and run the SELECT using that view. A coworker thinks it could be some kind of view alias issue (?).
I know the view exists, and I can access it no problem. Any ideas why this isn't working? It seems so simple, I could do this in a heartbeat in SQL Server. I have very few hairs left to rip out, so any help would be appreciated.

SELECT 'CMR' "Ticket_System",
"Id_col" "Ticket",
....you have wrapped up your columns with a double quotes and use an alias. i tried the same thing
but using a different table and it does not work.
SQL> desc emp;
Name                                      Null?    Type
EMPNO                                     NOT NULL NUMBER(4)
ENAME                                              VARCHAR2(10)
JOB                                                VARCHAR2(9)
MGR                                                NUMBER(4)
HIREDATE                                           DATE
SAL                                                NUMBER(7,2)
COMM                                               NUMBER(7,2)
DEPTNO                                    NOT NULL NUMBER(2)
SQL> select "empno" "employee_number"
2    from emp;
select "empno" "employee_number"
ERROR at line 1:
ORA-00904: "empno": invalid identifier
SQL> how were you able to run the top level of your SQL before the UNION clause? did you run it thru some tools
other than SQL*Plus?

How to upload the data from two sheets in one excel into SAP

Hi experts,
                My requirement is to upload the data from two sheets in an excel into an internal table.How can this be achieved.Is some OLE application has to be used?
Thanks
Abhishek

Hi
see this program will upload excel file to application.
*& Report ZSD_EXCEL2
REPORT ZSD_EXCEL2.
types: begin of ttab ,
      fld1(30) type c,
      fld2(30) type c,
      fld3(30) type c,
      fld4(30) type c,
      fld5(30) type c,
      end of ttab.
data: itab type table of ttab with header line.
selection-screen skip 1.
parameters: p_file type localfile default
            'C:\test.xls'.
selection-screen skip 1.
at selection-screen on value-request for p_file.
call function 'KD_GET_FILENAME_ON_F4'
       exporting
            static    = 'X'
       changing
            file_name = p_file.
start-of-selection.
clear itab. refresh itab.
perform upload_data.
loop at itab.
    write:/ itab-fld1, itab-fld2, itab-fld3, itab-fld4, itab-fld5.
endloop.
* Upload_Data
form upload_data.
data: file type rlgrap-filename.
data: xcel type table of alsmex_tabline with header line.
file = p_file.
call function 'ALSM_EXCEL_TO_INTERNAL_TABLE'
       exporting
            filename                = file
            i_begin_col             = '1'
            i_begin_row             = '1'
            i_end_col               = '200'
            i_end_row               = '5000'
       tables
            intern                  = xcel
       exceptions
            inconsistent_parameters = 1
            upload_ole              = 2
            others                  = 3.
loop at xcel.
    case xcel-col.
      when '0001'.
        itab-fld1 = xcel-value.
      when '0002'.
        itab-fld2 = xcel-value.
      when '0003'.
        itab-fld3 = xcel-value.
      when '0004'.
        itab-fld4 = xcel-value.
      when '0005'.
        itab-fld5 = xcel-value.
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      append itab.
      clear itab.
    endat.
endloop.
endform.

Saving the data from two info path forms in to a single list in share point 2010

Hi ,
I have two info path forms are in share point page FM 1 and FM 2.
In FM 1 I am getting data from lists by using drop down and casket drop down and FM 2 i need to enter manually after entering
i want to save both forms information(FM 1 & FM 2 ) in to a single list of share point 2010
If any knows the solution please reply me
Thanking You,
Arun Darly

Hi，
Based on your description, my understanding is that you want to save the data from two info path forms in to a single list in share point 2010.
We can't save the data from two info path forms in to a single list, but we can
save the data from two info path forms in to a single library.
Open the FM 1 and FM 2 in Infopath(you have save it Locally once).
Publish the FM 1 and FM 2 as content types named FM 1 and FM 2.
Add the content types FM 1 and FM 2 into a document library, Then you can save the data
from two info path forms in to a single library.
Best Regards,
Lisa Chen
Lisa Chen
TechNet Community Support

How to display data from a recordset based on data from another recordset

How to display data from a recordset based on data from
another recordset.
What I would like to do is as follows:
I have a fantasy hockey league website. For each team I have
a team page (clubhouse) which is generated using PHP/MySQL. The one
area I would like to clean up is the displaying of the divisional
standings on the right side. As of right now, I use a URL variable
(division = id2) to grab the needed data, which works ok. What I
want to do is clean up the url abit.
So far the url is
clubhouse.php?team=Wings&id=DET&id2=Pacific, in the end all
I want is clubhouse.php?team=Wings.
I have a separate table, that has the teams entire
information (full team name, short team, abbreviation, conference,
division, etc. so I was thinking if I could somehow do this:
Recordset Team Info is filtered using URL variable team
(short team). Based on what team equals, it would then insert this
variable into the Divisional Standings recordset.
So example: If I type in clubhouse.php?team=Wings, the Team
Info recordset would bring up the Pacific division. Then 'Pacific'
would be inserted into the Divisional Standings recordset to
display the Pacific Division Standings.
Basically I want this
SELECT *
FROM standings
WHERE division = <teaminfo.division>
ORDER BY pts DESC
Could someone help me, thank you.

Assuming two tables- teamtable and standings:
teamtable - which has entire info about the team and has a
field called
"div" which has the division name say "pacific" and you want
to use this
name to get corresponding details from the other table.
standings - which has a field called "division" which you
want to use to
give the standings
SELECT * FROM standings AS st, teamtable AS t
WHERE st.division = t.div
ORDER BY pts DESC
Instead of * you could be specific on what fields you want to
select ..
something like
SELECT st.id AS id, st.position AS position, st.teamname AS
team
You cannot lose until you give up !!!
"Leburn98" <[email protected]> wrote in
message
news:[email protected]...
> How to display data from a recordset based on data from
another recordset.
>
> What I would like to do is as follows:
>
> I have a fantasy hockey league website. For each team I
have a team page
> (clubhouse) which is generated using PHP/MySQL. The one
area I would like
> to
> clean up is the displaying of the divisional standings
on the right side.
> As of
> right now, I use a URL variable (division = id2) to grab
the needed data,
> which
> works ok. What I want to do is clean up the url abit.
>
> So far the url is
clubhouse.php?team=Wings&id=DET&id2=Pacific, in the end
> all
> I want is clubhouse.php?team=Wings.
>
> I have a separate table, that has the teams entire
information (full team
> name, short team, abbreviation, conference, division,
etc. so I was
> thinking if
> I could somehow do this:
>
> Recordset Team Info is filtered using URL variable team
(short team).
> Based on
> what team equals, it would then insert this variable
into the Divisional
> Standings recordset.
>
> So example: If I type in clubhouse.php?team=Wings, the
Team Info recordset
> would bring up the Pacific division. Then 'Pacific'
would be inserted into
> the
> Divisional Standings recordset to display the Pacific
Division Standings.
>
> Basically I want this
>
> SELECT *
> FROM standings
> WHERE division = <teaminfo.division>
> ORDER BY pts DESC
>
> Could someone help me, thank you.
>

How can i get data from the other system?

hi,
i want get some data from the other r3 system in my r3 system? now this two r3 system are installed two server.

Hi,
U can achieve this by RFC function module...
create a function module and make it as REMOTE ENEBLED IN ATTRIBUTES TAB..
for example i have to r/3 systems as A and B.
I want to get data from B system..
so create the FM in B system and then in A SYSTEM u have to call that one ,like this....
DESTINATION NAME IS FOR SYSTEM B.
CALL FUNCTION 'ZRFC' DESTINATION <DESTINATION NAME>
EXPORTING
IMPORTING
TABLES..
Regards,
Nagaraj

How do you set up a default Date To based on Date From for report parameter

I'm working on a report. I have been asked to set up a default Date To based on Date From for the report parameters. I mean when running a report, if an end user selects a value for parameter Date From, system will automatically populate the Date To parameter based on the Date From + 6 days.
I guess there's gotta be something to do with Value Set. Do any of you guys know how to go about this?
Any suggestion is greatly appreciated.
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You should be able to retrieve the value of other valueset using :$FLEX$.<valuesetname> I'm not sure about the exact syntax, it's been a while since i worked with applications.

Create a procedure which requires displaying information from two tables

What if we want to create a procedure which requires displaying information from two tables. In this situation,
I need to display all the details of an employee from an 'emp' table based on the deptno. and also their salary information which is
stored in "Salgrade" Table. Is the use of "And" the correct way of using it?
Do I need to declare all the attributes before begin or I can just access them directly? Thanks
Create Procedure findDept
( I_deptno IN number
) As
Begin
Select Ename, Job, MGR, Hiredate, Sal, Comm, Dept_no from emp and exp, grade , location from salgrade where dept_no
= I_Deptno;
Exception
When NO_Data_Found then
DBMS_Output.Put_Line(' Department not found"|| I_deptno);
End findDept;

Hi,
Besides Qwerty's remark, you've also got a quoting error:
Change
DBMS_Output.Put_Line(' Department not found"|| I_deptno);
{code}
into
{code}
dbms_output.put_line(' Department not found: '|| i_deptno);
{code}
Which leads to the question:
What do you want to do when a record is found?
Display it?

How to superimpose data from two different charts into a single chart?

I have a single chart that lists numbers by month for a two year period like this:
Jan 100
Feb 200
Jan 103
Feb 199
The numbers are all in the same column rather than different columns.
I'd like to creat a chart that plots the data for each year on the same X axis, so that I can see the two january numbers, the two february numbers, etc. on top of each other. But nothing I've tried seems to work. Numbers seems to always put the second january after the first december on the x axis rather than recognizing it as a new series to be superimposed on top of the original january.
Is there some way to fix this short of putting the data into a new column?

What your describing is a table of wht I would call raw data. I would also have a summary table that would use functions like sumif and sumifs, then make my chart off that. This table would have each month in a column and the years across as headers. ( if you're familiar with excel, it would be the equivalent of making a pivot table and chart, but manually).
Jason

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