Subtract the average of a matrix of each element

Similar Questions

• How to assign the same reference to tow façade elements

  Hello

  I would like to replace a reference to a control on front panel with another reference to two orders façade have the same address in memory. More specific: somewhere on my front (under two different tabs), I got 2 digital indicators and I want them to have the same address in memory, so that every time I call one of the reference indicators and change its property the other should change in the same way. I guess that there are several possibilities to synchronize two elements of the front panel, but I think that in my case it would be most convinient if I can only attribute the same reference to these two elements. I know c++, it is quite easy to replace a pointer, but somehow, I can't find a way how to do this in LabView.

  I would be very happy if someone could help me or suggest another way to synchronize the two elements of façade.

  Thank you!

  You can create references to the different elements of the façade in a table.

  Then loop in this table (for example, loops For with autoindexing) to perform the same operations of property on each element node

• Commas distort the setting of data in page APEX elements

  I have a form with several fields - Px_ITEM1, Px_ITEM2, Px_ITEM3, etc..
  
  I want to create a new record in which I want to automatically assign the new record with the values of the elements 1, 2 and 3 of the current record.
  
  I do this with a button which redirects the page to itself, and then each element affect the value in the current record. It works fine as long as there is no comma in one of the elements. If there is a comma in, for example, item1 (for example "MY COMPANY, INC."), then the values after the decimal point (here ' INC') will be placed in item2 and the value set to go in item2 will go into item3, etc..
  
  How can I treat this problem so that commas do not cause this inaccurate transfer to occur?
  
  Published by: Doug on April 10, 2012 09:40

  Hi Doug,.

  You can define a calculation of load on page to the inversion to commas. The tricky part will make the initial substitution when the page is redirected. I might try a calculation of page after the presents and see if it works, but I think this may not occur since you make a redirect and not a shipment.

  If you redirect right on the same page it is possible to delete any page clearing cache, and then you won't have to pass the items on the page at all, simply adjust the items that already exist on the load calculations.

  A third option would be to adjust your page to submit instead of redirect, using conditions on any process page on submit that you do not want to run.

  Aaron

• [Labview] I want to get the average value in each new 100 samples.

  Hello. I'm Sophie.

  I'm studying Labview for my research.

  For me, the sampling frequency is 125KHz.

  I want to get the average value in each new 100 samples.

  Therefore, I want to get an average value of 1 ~ 100th samples and store this average value. Call assets(1).

  Then, I want to get an average of 101 ~ 200th samples and store this means value, call moyen2.

  .

  .

  .

  .

  I don't know how me I want.

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  Sophie.

  

• Case: View the balance of the average customer for each area code.

  Hi again together. As a C++ / VB programmer, I used by using a control specified structures like for loops and while loops and use predefined variables to solve my problems. I have a little trouble to adapt to the SQL paradigm, which really does contain a few key words and in built functions.
  
  I had to have some exercises to do by my tutor at the University, and I have a big enough problem with this one. I to recover the balance of the average customer of a 'customer' entity, but I have to do for each area code, not as a whole. When I look at this problem, I immediately think of loops, conditional check, a variable of integer type to control the loop and possibly a table or a vector data type to store the results. SQL is rather simple, and its simplicity is actually causing me problems, ironically.
  
  Here is the "Customer" entity which I am to get directions:
  

  CREATE TABLE CUSTOMER 
  (
              CUS_CODE            NUMERIC(6) 
              CONSTRAINT CUSTOMER_PK PRIMARY KEY,
              CUS_LNAME       varchar(15) NOT NULL,
              CUS_FNAME       varchar(15) NOT NULL,
              CUS_INITIAL     CHAR(1),
              CUS_AREACODE      VARCHAR(3) DEFAULT '02' NOT NULL CHECK(CUS_AREACODE IN ('03','07','08')),
              CUS_PHONE       VARCHAR(8) NOT NULL, 
              CUS_BALANCE     NUMERIC(9,2) DEFAULT 0.00
  );

  I was able to order the customer balances by their area code and to calculate the balances of customers on average as a whole, but as I said I had difficulties to calculate an average of customer balances exactly their area code and do it for all the codes present.
  
  Any help / example code would be much appreciated.

  OK, so you will understand how to get the average on all clients in SQL, not true? Something like

  SELECT AVG(cus_balance) avg_balance
    FROM customer
  

  If you want to get the average balance by another column, you simply group this column, i.e.

  SELECT cus_areacode, AVG(cus_balance) avg_balance
    FROM customer
   GROUP BY cus_areacode
  

  This essentially tells Oracle to group all data by area code before you run the aggregate function AVG on the cus_balance for each of these groups.

  Justin

• each value to subtract the last value

  Hei

  Someone knows how to do, on the loop or while loop.., I need a constant or control number 300 would b subtract to number constant.., but I mean for example 300-2 300-_298-2-2 = 2 2_ = 298, and so forth, subtract the last value.

  Thank you

  Read help on registers at offset.  Take some tutorials.
  LabVIEW Introduction course - 3 hours
  LabVIEW Introduction course - 6 hours

  Shift registers take a value at the end of the iteration of a loop and return it at the beginning of the next iteration of the loop.

• All the diagonals of a matrix

  Hello! I want to find all the diagonals of a matrix. In the attachment, I m trying to shuffle column every time while the lines remain constant, so the first element must be rank num:01, then find the other elements of this refrence. The problem I m facing right now is that I do not m vectors with [1 diagonal, diagonal 2, diagonal3...] I get only last diagonal with 2 elements. I f I can flag out of the loop, it makes 3D, but the output remains the same and I m unable to separate all the diagonals as independent vectors. An iteration should give all elements like vector and then on the other iterations another vector, but I want to treat independently thereafter. For 4 x 4 matrix, there are five diagonal leading to 5 vectors I want... they're all 1 - D.Hope, that I managed to pass the question. Kindlt see vi which I enclose.

  I looked a bit the problem differently.  The number of diagonals is given by the number of columns less 1 plus the number of lines less 2. The clues to apply to Get diagonal matrix function also systematic, regardless of the size of the array. This model can be generated by adding or subtracting 1 to the line or column index appropriate without changing the program for each dimension table.

  I presented the output as clusters of the table table.  By putting each diagonal matrix in a cluster and then build an array of clusters, the individual tables of diagonals can have different lengths.  Because arrays in BT are of arbitrary length, you have no need to create a flag for each possible diagonal.  I ran my VI with 24 rows and 55 columns without changing anything, but the values of the entry of the size of the controls.

  I also added a delay in each iteration.  The execution of thousands of iterations per second is rather pointless.

  Lynn

• How do the average of the last 5 values of a column as new values automatically entered?

  If the issue is not clear for you, here's a site I found that teaches you how do it on excel. ml https://www.extendoffice.com/documents/Excel/2533-Excel-average-last-5-values.HT    I can't find the corresponding method on the good numbers. Thank you for your response in advance :-)

  Hi Z_J,

  This number approach pulls the last 5 (low) values of table 1 in another table where the average can be calculated.

  Step 1. Add line numbers in column A of table 1. This gives a way for table 1-1 to extract the last 5 values.

  

  Formula in A2 (and fill down

  = ROW()

  Step 2.

  In table 1-1, the formula in A6 estimated the maximum line in table 1

  = MAX (Table 1::A)

  The formula in A5 (and filling up)

  = A6−1

  Formula in B2 of table 1-1 (and fill down) using VLOOKUP to find a match for each line number in table 1-1 and get the value out of this line in table 1.

  = VLOOKUP(A2,Table 1::A:B,2,FALSE)

  

  Step 3.

  Now add another row (and insert a new value) to the lower part of table 1

  

  Lines 3 to 7 are now drawn.

  Ranger by hiding some columns

  

  Kind regards

  Ian.

• Find the average of a set of times

  Hi all

  I have a spreadsheet with 52 pages (weeks of the year, sort of a planner) and every day I type in my wake-up time. Until the end of the week there are 7 times, then a column that has successfully made the average at that time. (see below) using this formula: AVERAGEIF(A3:G3,">5:59",A3:G3)

  I intentionally do include only periods after 05:59 in the formula.

  

  As you can see it does that very well. All the averages for each week are then sent to an "annual" table on another page (see below)

  

  The problem when coming to this second table, each average weeks appears in the average annual table always shows the last time which was received (in this case, 09:22). In other words, it does not indicate the average. The formula I use for this table is: AVERAGEIF(C2:BC2,">5:59",C2:BC2)

  So what on earth am I doing wrong?

  Thank you :-)

  I can't read anything in the second table you have posted... it's too small.

  Perhaps to show how the weekly averages go weekly table at the annual table.

• By subtracting the tables

  Hello world

  I have a little trouble with my code. I'm trying to subtract an array of ghosts (background data : lines 1 column x 2048) an array of ghosts of aqcuired (56 columns x 2048 lines).

  I tried to remove the table of column 1 in each column in the largest table, but I had no chance. Does anyone have advice? I want to be yet 56 columns x 2048 lines, the output array.

  Small theoretical example:

  Table background:

  1 2 1 2 3

  Grand Bay:

  1 2 3 4 5

  2 2 2 2 2

  4 3 2 5 1

  5 6 7 6 5

  9 8 9 8 9

  End of table:

  0 1 2 3 4

  0 0 0 0 0

  3 2 1 4 0

  3 4 5 4 3

  6 5 6 5 6

  Thank you

  What do you know about tables and how LabVIEW manages them?  Do you know how bays to work with loops?  If you have a 2D array, and I say ' a loop For you will give the lines one at a time "and you want to make the columns , one at a time, can you think of a table operation that Exchange rows and columns so that you can use the loop For to make the columns, instead?

  Some of these ideas mater in a block diagram, test, see if it works, and if not, the postal code and ask for help.

  Bob Schor

• Down, enjoy a 2D array and the average of the two numbers

  the problem: first Coloum (A) 6635 elements, the 0.15 to 30 one-step 0.0045, second coloum (B) random numbers of DBL.

  Down in the a sample of linear to 30 points (1-30)

  Take the average of the two data points in B that correspond to the upper and lower each step limit.

  a link below illustrates well the im data works with.

  ex: (A, 189) = 0,996 (B, 189) = 29,83

  (A, 190) = 1.0005 (B, 190) = 34.41

  (ONE, 412) = 1.9995 (B, 412) = 17.13

  (ONE, 413) = 2.004 (B, 413) = 14.88

  This would be the first point in the new array (A, 1) = 1 B, 1 = 32.12

  and the second point would be (A, 2) = 2 B, 2 = 16.005

  The only whole number has is 30, and its value in B will be used

  How would sort the table to find these values, without the use of 60 search for items?

  and once you find the item, tell him to recover the data in the next coloum?

  Once it is towards math nodes or node formula will end the vi.

  Thanks for any help

  BESIS

  
  

• by comparing the average centroid location to the location of the center of gravity measured

  I'm using labview 2015 to design a laser alignment system, using a contoller ag - uc2 and an optical mount piezo driven two webcams. The establishment, is that the webcams are positioned behind the mirrors, which are somewhat permeable, so the webcam will get a shot where the laser beam is pointed. The laser must be aligned manually first, and after that it is satisfied with the alignment, this program will be run once to run in the background. control the position of the laser a few times per minute to correct the thermal drift. After it is first of all, I would like the program to take maybe 10-15 images, to find a location to center of medium severity on each of the mirrors, then switching to compare new images of this center of gravity of the model. My problem is that I can't imagine a way to get a picture of model and have that info Reports to the next iteration of the while loop to the overall program be carried out. I have tried using the structures of the case, which, I imagine, will eventually be the solution, but it did not work as expected. I put the case structure to run based on the value of the indicator loop iteration of the main loop, and I got a while loop in there with registries to raise the center of gravity of this loop and store this information for the next loop to shift. I can see after running the program why my implementation does not work, but I don't know how I can design something that will have an average of several images. I think I should use learn and compare the model, but I don't know how I can convert a cluster (centroid) type of data appropriate for the model comparistion live if you have any suggestions for my existing code or want to offer a different approach, I appreciate it. Also let me know if you need any other screws included.

  In the past, when I had to switch between two 'modes', if you do, I used two consecutive loops while, one for the first mode and one for the second, or I would put Boolean register to indicate that, two modes, the loop was offset.  If you start in a mode, and then more later switch to another once and only once, then you can use a node 'OR' like a lock to power the old way, so the first true feed you of keeps it true until the next time that you run the VI and it returns false.

  I would also add that I looked your VI and the method that you use on average 10 images, while innovating, is usually not a great plan.  Instead of having 10 shift registers build an array of fixed size, just have a table in a shift register, add each new measure at the end and the VI means in the range of mathematics/statistics to calculate the average.

• calculation of the average value of the sorted data and polar route drawing

  Hello

  I did a VI that calculates the average value of the wind rotor/speed-ratio in the sections of 30 degrees (wind direction). He also called the polar plot of calculated data. Everything works, but I would like to make more detailed calculations and drawings, by increasing the resolution to 1 degree, or...

  Problem is VI, I did, is not easy on a large scale. At the moment, I have 12 parallel structures of switch-box to calculate the average value and build the array function to collect data calculated for Polar plot to draw the image in real time. I know it's probably the worst way to do it, but since I have done a few things with LV, it was the only way I managed to do what I wanted.

  Now, if I continue in same way to reach my goal, I have to create 360 Parallels switch-case structures... that are crazy.

  Something like the calculation of the average of the table or matrix (zero/empty values should not be calculated on average) inside the loop or similar way would probably be the best solution.

  So, polar plot drawing is not a problem, but creating a reasonalbe average metering system is. Any ideas?

  I would also like to rotare northward to the top (0 deg), and degrees of increase in a clockwise direction on polar ground dial plate (as on the compass).

  VI on the attachment. (simplified version of the complete system)

  I have signals:

  -Wind speed

  -wind direction

  -Rotor speed

  I want to:

  -calculate the average value of the speed of the wind / rotor - ratio in sections (5 degrees, 1 degree)

  -Draw a polar path of the wind rotor/speed-ratio of averages in propotion of wind direction

  I'm using LabView 2009

  Thank you very much.

  It is closer to what you're looking for?

• Subtract the model image of a real-time video and image/video subtracted from output

  Hi all

  I have a case in which I need to acuiqre a video (of circular loop) to a camera (which I am able to do with the vision development module in avi format) and subtract the model standard (for loop) image of him and display the output for each frame subtraction. The subtraction will tell me how much movement there was in the loop in real time. Is it possible to do?

  I donot want to save any image or video, just want to show the subtraction of real time to the user

  Joined the image.not still able to add video

  Hello AnkitG,

  Subtract the IMAQ VI removes one image from another or a constant. You can then view the removal from the user or save the images if necessary. Here a link to the reference IMAQ subtract VI.

• Show the average time in days hours minutes seconds

  Hello

  I have two tables as follows,

  Is it possible to separate the average time in days, hours, minutes, seconds.

  I need the average time required for each account.

  with
  Table1 as
  (select "AAA" acname, 123 tid, to_date (January 11, 15 13:00 ',' dd-mm-aa hh24:mi:ss') ltime Union double all the )
  Select 'AAA', 456, to_date (January 11, 15 15:00 ',' dd-mm-aa hh24:mi:ss') of all the double union
  Select 'BBB', 789, to_date (11 January 15 04:00 ',' dd-mm-aa hh24:mi:ss') of all the double union
  Select 'CCC', 990, to_date (11 January 15 18:00 ',' dd-mm-aa hh24:mi:ss') of all the double union
  Select 'BBB', 880, to_date (11 January 15 05:00 "," dd-mm-yy hh24:mi:ss') of all the double union
  Select 'DDD', 770, to_date (11 January 15 05:00 "," dd-mm-yy hh24:mi:ss') of all the double union
  Select 'BBB', 555, to_date (January 11, 15 13:00 ',' dd-mm-aa hh24:mi:ss') of double
  ),
  Table2 as
  (select txid 123, to_date (January 11, 15 14:00 ',' dd-mm-aa hh24:mi:ss') mtime of union double all the )
  Select 456, to_date (January 11, 15 16:00 ',' dd-mm-aa hh24:mi:ss') of all the double union
  Select 789, to_date (11 February 15 04:00 ',' dd-mm-aa hh24:mi:ss') of all the double union
  Select 770, to_date (11 February 15 07:00 "," dd-mm-yy hh24:mi:ss') of all the double union
  Select 990, to_date (11 January 15 23:30 ',' mm-dd-aa hh24:mi:ss') of all the double union
  Select 880, to_date (11 February 15 05:00 "," dd-mm-yy hh24:mi:ss') of all the double union
  Select 555, to_date (11 February 15 13:00 ',' dd-mm-aa hh24:mi:ss') of double
  )
  Choose acname, avg (hrs)
  from (select distinct t1.acname, (t2.mtime - t1.ltime) * 24 h )
  from table1 t1,
  Table2 t2
  where t1.tid = t2.txid
  )
  Group acname

  
  

  Expected results

  
  

  ACNAME Avg (day) APR (hrs) Avg (Mins) Avg (dry)
  

  AAA 0 1 0 0 (that is to say 14:00-13:00 = 1 and 16 15 = 1, Avg = (1 + 1) / 2 = 1)
  

  BBB          1               0          0               0
  

  CCC          0               5          30             0

  DDD          1               2          0               0
  

  with

  Table1 as

  (select 'AAA' acname, 123 tid, to_date (January 11, 15 13:00 ',' dd-mm-aa hh24:mi:ss') ltime Union double all the)

  Select 'AAA', 456, to_date (January 11, 15 15:00 ',' dd-mm-aa hh24:mi:ss') of all the double union

  Select 'BBB', 789, to_date (11 January 15 04:00 ',' dd-mm-aa hh24:mi:ss') of all the double union

  Select "CCC", 990, to_date (11 January 15 18:00 ',' dd-mm-aa hh24:mi:ss') of all the double union

  Select 'BBB', 880, to_date (11 January 15 05:00 "," dd-mm-yy hh24:mi:ss') of all the double union

  Select 'DDD', 770, to_date (11 January 15 05:00 "," dd-mm-yy hh24:mi:ss') of all the double union

  Select 'BBB', 555, to_date (January 11, 15 13:00 ',' dd-mm-aa hh24:mi:ss') of double

  ),

  Table2 as

  (select txid 123, to_date (January 11, 15 14:00 ',' dd-mm-aa hh24:mi:ss') mtime of union double all the)

  Select 456, to_date (January 11, 15 16:00 ',' dd-mm-aa hh24:mi:ss') of all the double union

  Select 789, to_date (11 February 15 04:00 ',' dd-mm-aa hh24:mi:ss') of all the double union

  Select 770, to_date (11 February 15 07:00 "," dd-mm-yy hh24:mi:ss') of all the double union

  Select 990, to_date (11 January 15 23:30 ',' mm-dd-aa hh24:mi:ss') of all the double union

  Select 880, to_date (11 February 15 05:00 "," dd-mm-yy hh24:mi:ss') of all the double union

  Select 555, to_date (11 February 15 13:00 ',' dd-mm-aa hh24:mi:ss') of double

  )

  Select acname,

  trunc (AVG (Days)) days,

  trunc (mod (AVG (Days), 1) * 24) hours,

  trunc (mod (AVG (Days) * 24.1) * 60) minutes.

  trunc (mod (AVG (Days) * 24 * 60.1) * 60) seconds

  from (select distinct t1.acname,(t2.mtime-t1.ltime) days

  FROM table1 t1,

  table2 T2

  where t1.tid = t2.txid

  )

  Acname group

  /

  ACN DAYS HOURS MINUTES SECONDS

  --- ---------- ---------- ---------- ----------

  BBB         31          0          0          0

  CCC          0          5         30          0

  AAA          0          1          0          0

  DDD         31          1          0          0

  SQL >

  SY.