Average values of several 2D arrays

Similar Questions

• 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?

• Find the average value of a buffer

  Hello

  In my VI Panel, I have a digital control, a button and a digital display.

  When the user, enter a number in numerical order and press the button, the digital display should show the average value of all the past 5 values entered in the digital control, for example:

  1st entry: 10-online average = 10 (as sum = 10)

  2nd type: 0-online average = 5 (as sum = 10 + 0 = 10)

  3rd enter: 5-online average = 5 (you get the idea...)

  4 enter: 1-average online = 4

  5 enter: 14-online medium = 6

  6 enter: 2-online average = 4.4 (sum = 0 + 5 + 1 + 14 + 2 = 22, because the 1st value is thrown)

  How to write this VI?

  Thank you!!

  You can also use arrays to hold the data in a registry change and find the average value of the last five items.

  

  Good luck

• Average value in a second a series of signals from the DAQ card

  Hello

  I'm trying to average signals in one second of my DAQAssistant.I am using a shift register to add all signals in a second interval and then dive out of the turn register by the number of iterations of my time loop (which I think should be the total number of samples per second-1). But when I studied the value of i from inside while loop by placing an indicator it always returns a value that is equal to my (sampling rate of DAQAssistant) / Samples as follows. This means that the average value I get something wrong, it is the average value seems within the reach of the signal I get.

  I wanted to use an array to store all the signals in a second, but I might have to increase the samples up to read the value in this case it will not be a very efficient way to store 500 data in a table.

  Any reclassification help how to get mean value over a cycle would be greatly appreciated.

  Thank you

  This is because an iteration of the loop returns a type of dynamic data that is under the hood an array of 100 samples.  The loop runs 10 times because you stop the loop after 1 second, only lasts only 1/10 of a second because she the 1000 Hz divided by 100 samples.  That's why I + 1 is equal to 10.

  Now you have 10 bays (buried in the dynamic data type) added.  Divided by 10 gets you the average of these 10 tables.  But this average is always an array (buried in DDT), but when connect you up to the average indicator, is to return only the first sample of average average array which is why your average seems essentially functional.  However, the averages of the other 99 data points (x iterations of the loop 10) are lost.

  You would be better off away from the DDT.  Just work with arrays.  Add the 10 tables to each other.  Now, you'll have an array of elements of a thousand that you can all wire to the average function in the range of statistics.  You won't have to worry about count the iterations of the loop, in summary and dividing.

  

• exclusion of a calculation of the average value

  Hello people from Adobe,.

  I am trying to exclude the "NC" 10 value are used to fill an average value (average rating of text box) on a form, I created.  I used the script from another topic on the exact topic thread, but I modified to fit my needs.  I think that it is a quick fix very.  For some reason, I don't get the average of all 10 drop boxes in my text box.  Can someone check this script and see what I might be missing.  The text box displays '0' because of this line event.value = 0;

  What Miss me?

  Here is the code:

  Average values of non - NA;

  var aFieldNames = new Array ("ListeDéroulante1", "Dropdown2", "Dropdown3", "Dropdown4", "Dropdown5", "Dropdown6", "Drop-down list 7", "Dropdown8", "Dropdown9", "Dropdown10");

  counter to the values non - NA;

  var nCount = 0;

  variable for values of sum of non - NA;

  nSum var = 0;

  default value of result if no average not calculated;

  Event.Value = 0;

  Table of process of domain names;

  for (i = 0; i < aFieldNames.length; i ++) {}

  If (this.getField(aFieldNames[i]).valueAsString! = "NA") {}

  field doesn't have a value of "NA";

  nCount ++; incrementing counter

  nSum += Number (this.getField(aFieldNames[i]).value). Add the value of the sum

  } / / end of value not of NA;

  } / / end of treatment a loop field;

  calculate the average;

  If (nCount! = 0) {}

  divisor of zero, so we can calculate the average;

  Event.Value = nSum / nCount;

  }

  I noticed that there 'Dropdown 7' as opposed to 'Dropdown7', which is what the field other names are similar. Could this be it?

• How do you find the average value of all the data between two points on a single channel

  I'm tring to calculate the average value of all data points in a single field between two distinct points

  I rasthaus an illustration.

  Hi smoothdurban,

  I thought you wanted to specify the area of interest with the sliders of the band.  If you rather automatically define the area of interest based on thresholds, etc., we cannot see the interactive nature of the example I sent.

  What are the criteria used to determine the start and end of the region of interest lines?

  I would be able to type this out for you if you sent a representative data set ([email protected])

  Brad Turpin

  Tiara Product Support Engineer

  National Instruments

• Average values for separate sets of data graph XY multiplot

  Hello

  I'm using Labview 2010 and I'm a bit of a novice, unfortunately.

  So I am currently trying to get average values of the three plots I have on a multiplot XY Chart. I thought the best way to achieve this would be to use the express VI of statistics, but when I try to wire the data I need for this I can get statistics for a set of data and not the other two.

  I don't know how the separately on data sets, as it is not a table.

  If anyone can help me, it would be much appreciated. Sorry for the probable simplicity of the question.

  (The program is basically an ODE Solver, which then displays pressure at different places in a bioreactor).

  In the small LOOP where you have data of y for each parcel in the form of a 1 d table, add a "mean.vi" in the math palette: statistics. AutoIndex the output on the edge of the loop to get a table 1 d containing three ways.

  (In addition, a lot of your code could be considerably simplfified. You can [i] connect directly to the structure of the case and a case of '0' and the other, by default. Better would simply initialize the shift, no means required register. Index table is resizable, so you don't need to a single instance on the lower right corner. Wouldn't be easier to just get the latest column and it wire back the entrance inside the structure cases via the feedback node? No need to "subset of table to replace").

  You have forgotten to attach a Subvi, so we can't really test.

  EDH is a quick project:

• How can I multiply all values of an array of 4 elements, with all its opposite values, resulting in an array with all 16 products?

  I'm quite new to LabVIEW (v.8.0) and I'm trying to understand the best way to have a table of 4 elements multiplied by its inverse values, resulting in an array of 16 elements

  Values of table 1 = 1, 2, 3, 4

  Values of table 1 reverse = 0.5, 0.33, 0.25, 1

  Resulting table = (0.33 0.25, 0.5, 1, 2, 1, 0.66, 0.5, 0.75, 1, 1.5, 3, 1.32, 4, 2, 1)

  Any advice would be appreciated. Thank you!

  You can try something like the following (the last operation is "reshaping table")

  

• Calculate the average value

  the data that I measured changed quickly, so I want to get the average value of the data

  Don't tell me to use mean.vi, I already know.

  and I got an idea that is to add data in a table every time, then the sum of all value data and take the line of result by the number of items

  but I don't know how to do this, anyone can build a simple vi to show me? Thank you

  I enclose my vi that uses mean.vi to the average value of calc, you can remove it and help in your path, thank you!

  Do not add your data in a table that grows forever. What a waste of RAM. To calculate the average, you only need to sum and N.

  Here is a simple code to accumulate the sum of the values in a shift register and divide by the number of add operations.

  

• [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.

  Thank you

  Sophie.

  

• How to calculate the average of the 1 d array?

  Could someone please help me, how can I calculate average of the 1 d array? For example, if the table 1 d - is [2, 3], I would get average = 2.5. Thank you very much!

  Use the average function. You can use the search or the quick menu to look for where you don't know where to find.

  Norbert

• Is it you please, how to pour extract a value of a 2D array?

  Greetings,

  Is it you please, how to pour extract a value of a 2D array?

  Thanks in advance.

  Just use the Index Array function. Specify a line and column, and you'll get one.

• Average value of the waveform graph

  Hello everyone.

  Can I do an interval of time, where I can measure the average value of a waveform graph?

  for example the fom 0:30-0:45

  

  I have uploadet my VI
  :

  Thanks in advance

  Orlando

  
  

• How can you specify the default value for the undefined array elements

  According to aid LV, the tables have two default values, the normal default value and the default value for the undefined array elements.

  I assume that there must be a way to specify the default value for later, but I can't find it anywhere.  Any ideas?

  I know that you can drag the item out of the table container.  Change the default value on this scalar element.  Then drag the item in table tank.

• average value

  Hello everyone!

  I have a little problem. I need the average value of a signal. For example, the average value of a signal in 10 seconds or 5 seconds. So I put Te length sample 10 put my stuff in an if loop, set a timeout of 1000 ms. But in the end, I get all values 10 and I only need one more (in this case tenth). It's the wrong way to solve this problem? Will there be another opportunity?

  I woluld say thanks for all the help move forward me.

  Thomas

  Hi raditomi,

  the attached picture shows one solution.

  There is another "default" case, it's empty.

  Mike