Table size - several plots

Similar Questions

• How to make graphic XY interpret several plots of a While loop

  I am a student of Georgia Tech researching prefabricated FETs, relatively new to LabVIEW, and I write a LabVIEW vi for the characteristics of output. Basically, a curve of Ids vs Vds with Vgs (curve tracer) evolution. I'm controlling a power supply via GPIB to bias the door while using another supply/power meter via GPIB to vary Vds while obtaining the IDs. My program is working as needed with one exception. After that I built my data table, my XY Graph interprets the data in the form of a plot and during the interpolation will connect all points of data together, as shown in the attached picture. I would like the chart to interpret the data in several plots in this way I can position the sliders along each plot for other parameters. I have also attached my vi if necessary. Any suggestions on how I can fix this?

  ~ jdamato3

  Because you know from the start how much data will be in the plots, you can initialize the structure of final data once before beginning to loops. Now, the size of the data in the shift register structure is invariable for the duration of the race. It's a good thing!

  In the previous implementation, each table grows with each added item, and given that the tables must be contiguous in memory, each culture operation is likely to require a new copy of the structure of the whole of the data in memory. The program will be spent most of his time to allocations of memory instead of actual work. (no much here since the tables are short, but imagine MB of data and it will become all very expensive and slow).

  Here is a modification of the example. (remember that the data containing NaN show on graphs, thus giving the desired effect).

• Adding items to an array of unknown size several times

  Hey,.

  I had an application that communicates with a device (a generator of microwave) via the Protocol modbus RS-232. It is within a state machine. The VI running generator initialization first and then move to the State 'pending', where I have a structure of the event to follow any value change of control. In the structure of the event, a timeout of 300 ms is implemented, because communication to the generator must be active at least every second (if not a defect is reported). In the case of timeout I read all record and display values.

  Within this time-out I would record a value of the indicator ('measure Pfwd') several times in a 1 d table (the table size is unknown!). However, I would like for the variable to record only when the indicator 'MW?' is 'TRUE '. And "MW?" goes from 'FALSE' to 'TRUE' every time, I would like to start writing on a table from the beginning.

  I tried several options, including the table to remodel, but I can't make it work. Or it works in a separate VI, but when I use it within the structure of the event and state machine, nothing works.

  If someone has an idea, it would be welcome...

  Thank you

  Concerning

  Create an another shift register which is initialized with an empty array of the correct data type and use the node Build table add data to it when you want that he added.

  In BT, the size of a table doesn't have to be declared in advance.

  Mike...

  PS: other tunnels must be wired throughout.

• How can I draw several plots by using the XY graph during execution?

  Hello

  I want to draw several plots in the graph XY to the means of execution user will select the number of plots that he wants to draw, depending on this value, I have to get these values and use table generation and then I give to graph XY.

  During execution, but how to do this?

  Please help me in this regard.

  Kind regards

  Herald

  Why start a new thread?

• WARNING: table size limit exceeded

  Noticed this error on a sensor event. I had the same as those of the 5378-0,5488-0,5528-0,5476-0.5557-0,5687-0,5524-0 sigs.

  What it means?

  evError: eventId = 1130169990404666072 = severity = WARNING Cisco vendor

  Author:

  hostId: 02-evlan-c7

  appName: sensorApp

  appInstanceId: 355

  time: December 1, 2005 19:10:08 UTC offset-360 = timeZone = GMT-06:00

  errorMessage: warning Table size limit exceeded by GIS 5378.0. Additional table will be created. name = errUnclassified

  These warnings are initially simply information and do not constitute an error that the user needs to worry.

  When signatures are added to the sensor, the sensor will compile all signatures in a large regular expression cache table. This considerably speeds up the analysis. The cache table, however, has a limited size. When you add a signature to the cache table would develop the table beyond the allowed size, then you will see the warning that you posted above.

  That caveat lets you know, it's that he couldn't add that signature to the existing table, and so it must create a new table for the signature and the signatures follow.

  This information before debugging for developers of signature just so they can track what is happening because signatures are added.

  The sensor works correctly and work very well. The addition of the new table only adds a very small performance reduction as an extra table must be analyzed during the analysis of the packets.

  Users running with the signature by default settings would never need to worry about this message and can consider only a few logging information (it should really have been a status message instead of an error message)

  Users who are unretiring signatures or creating their own custom signatures can see this message as they set up their sensors. So then he os to let them know that tables additional cache is taken to be created to manage the additional signatures. Once more just information and not a real error.

• How to adapt the rows in the table spans several pages in proportion to an image?

  Hi all

  I have a fairly large excel file (more than 2000 lines) imported, and the resulting table spans more than 150 pages.

  The problem is that the lines don't always fill the height of the text block (height of 9.5 ") on every page.

  I don't like that the lines are of different sizes. I want just the lower edges of tables on each page to be in the same place.

  By dragging the line down with the SHIFT key does not work if the table spans several pages/text blocks.

  Is it possible to force the selected lines (or stored in a block of text) proportionally fill their block of text?

  It is really not any function automatic adjustment that apply at the height of the row in the table directly, then I suspect that you're not going to find a way to do this is automatic.

  If it was my document, I would consider (something like) do this:

  Find the highest line in the table. (Or, perhaps that if there is some exceptionally high lines; unobtrusively manipulate them and use the 2nd or 3rd highest line as a reference.) Calculate the number of lines (max number of) of this size will fit in each text block. Divide the height of the block of text by this number to get a line height that adapts the same number of lines in each image. Then, select the entire table and all rows from this height. Follow up with the typographic settings that help uniform line height look resolutely.

• I'm reading the data (speed rate and flow) of a table and it plot in a graph.

  I'm reading the data (speed rate and flow) of a table and it plot in a graph. I need to draw two values of l/min (speed) to the same speed. How can I do using a loop for?

  There is no need actually to use a loop FOR this. And using a graphic waveform isn't the type of field for this, for a waveform you a (Start), the dT T0 (greatness not) and table D (Data), this isn't what you want unless you know precisely the measure will take place according to an orderly disposal, you'd want a xy chart so that you can trace the measures where they occur in the axes X and Y of preference.

  

• Best way to disable several plots on XY-graph?

  Hi all

  I need to hear here. I have an XY Chart with several plots.

  Here's how the VI would work.

  1. start of program, no parcels or scale is shown.

  2. several buttons are available to select who are plotting to TURN (corresponding scale is also ON / OFF).

  What I have now is to transmit the data to the first graph with all plots and invisible scale.

  I did it using the graphics property ActPlot, ActYscl and PlotVisble nodes, but I had to for this

  through each ActPlot/ActYscl. There are therefore several knots of property in all directions as

  in the figure below.

  

  My questions are the following:

  1. a lot of knots of property would require more memory or CPU resources?

  I do a lot of similar manipulation on the graphics property (cursors, scale, color, etc.). I'm worried

  the end result is a program that really doesn't do much, but a lot of memory/CPU hog resources.

  2. is there a better way to do it? Perhaps a property node that turns off all

  visible at once?

  I read in another post that suggests to use a loop to turn off one by one. I can

  certainly do it, but it would be a better way?

  Any suggestion or the part of the thought is appreciated!

  Thank you

  CC

  Certainly you must change the data that you pass to the chart, especially when working with lots of data. Simple reason: memory usage.

  Visibility of switching does not reduce the amount of data that you pass to the curve (that copy for display) as a result, you'll probably lose a lot of memory.

  But if you want to display all data at once and only give the possibility to hide the small amounts of data, the approach with the 'visible' property node is OK, but...

  hope this helps,

  Norbert

  EDIT: If you want to change multiple properties at the same time, you must include a control panel (Control Panel-property) defer updates.

• 2 dimension table size error

  Hello

  In file attached an example of my problem. I remove a 2-dimension table and the size of the screen. I can see in "size 2" (see the example) that the size is not 0. Is this a normal behavior?

  Thanks in advance, Daniel.

  Hi Daniel,.

  Since the delete array help page:

  "Delete From table details

  This function reduces the table in only one dimension... »

  Even if your table 'seem empty,' he is so really. I'm guessing that the memory for lines is still allocated.

  You can see by connecting the array to a loop and check how many times she iterates (i.e. twice).

  To really empty table, you can add a further dismantling of the Array function and delete lines (length = 2, index = 0). Now connect this to a for loop and you will see it does not iterate. Table sizes will now be 0,0.

  A little weird at first, but ultimately this is the expected behavior.

  Steve

• How to compare the original value of table size and the changed value

  juice I took a table and then took the function of the size of the array so that it shows me the number of the elements present in it. so it'll be the original table size value. If the items in the table even changes another value, then I want to compare the original table size value and the value of table size has changed. How to compare... Please help me. you are looking for a possible solution. Thank you

  Hi stara,

  the attached picture shows the ony solution.

  It will be useful.

  Mike

• Generate several plots according to the size of table

  Hi all

  I'm relatively new to LabView and I read several threads that are similar to my problem, but I don't know how to implement it yet.  Basically I have a large table that stores the raw data read from multiple text files.  This large painting size would vary based on the number of text files generated by a data acquisition system.  I would like to draw each line of the table a new field.  Instead of manually wiring, is there an easier way around?

  Thank you

  Lynniz

  Lynniz,

  If you need a separate chart for each parcel then can determine you at least in advance what the maximum number of locations could be and show/hide your graphics programmatically based on data. All the graphs could be in a Subvi that appears separate from your main application window, or you could use a secondary.

  I'm just brainstorming here. There could be a more elegant way to do it, but the graphic masking that already exist is the only thing I can think of right now.

  Eric

• design of table size question of data modeling

  Hi Experts,
  Sorry if I put my question in a wrong forum please suggest an appropriate forum.
  
  need your opinion on the current design of our data warehouse of 10 years.
  There is a dimension table with the structure as follows
  
  Dimension table
  --------------------
  Number of dimension key (THIS IS NOT a PRIMARY KEY)
  Natural key (from source) number
  the source name character
  current record indicator e Char (1)
  date of form_date
  TO_DATE date
  several other columns, which, if change a new current record is created and the previous one is marked as H-historical
  
  Data are stored in the table of size like this
  Dimension_key natural key Source name current record ind from_date to to_date
  1 10001 Source1: 1 January 2005 May 31, 2005
  1 10001 Source1: 1 - jun - 20005 12-dec-2011
  1 10001 Source1 C 13-dec-2011 NULL
  
  2 20002 Source1: 1 - jun - 20001 12-dec-2011
  2 20002 Source1 C 13-dec-2011 NULL
  
  The problem I see in this design is that if any attribute is changed there is no surrogate key, the new record is inserted first taking the key dimension based on the (natural_key, source_name, current_record_ind).
  Shouldn't it be kept as follows based on the principles of data warehousing.
  
  Dimension_key natural key Source name current record ind from_date to to_date
  1 10001 Source1: 1 January 2005 May 31, 2005
  2 10001 Source1: 1 - jun - 20005 12-dec-2011
  3 10001 Source1 C 13-dec-2011 NULL
  
  4-20002 Source1: 1 - jun - 20001 12-dec-2011
  5 20002 Source1 C 13-dec-2011 NULL
  
  Please let me know the advantages and disadvantages of the current design.
  
  Published by: Rous Sharma on December 15, 2011 20:28

  Correct, your second example for example by using a surrogate key is design to go with.

  Flaws with the original design:

  -There is a relationship one between Dimension_Key and Natural_Key, no need to keep both.
  -Si Dimension_Key is the FK with a fact table, there will be a number of many relationships between fact and Dimension.
  -Additional processing to search for Dimension_Key rather than simply for example use a sequence.

• How to write a loop repeat 2 in 2D array values to readable size 10 1 table size

  Hello everyone, I need help about to write for loop or may be a different approach, as you know for

  I have a table 1 [1 2 3 4 5 67 8 9 10] d... now I want use for loop that reads 2 values as ([1 2]) and together these 2 values of first line of 2D array and repeat in a loop again read another 2 values ([3 4]) and set the 2 row table 2D like this line [5 6] 3 table 2D... .as she write 5 lines of table (2 * 5) 2D to 1 d (1 * 10) table... you can tell otherwise easy as not exatcly to be for loop... Thanks a lot for your help and suggestions... waiting for your answers

  The short answer is that you must use the function Array reshape.

  The longer answer involves more questions.  You still have the same table 1 d of size?  If this isn't the case, it will always be an even number of elements?  If this is not the case, what you do with the last element?  If you keep, what do you use to "pad" of the additional element of the matrix of results?

  

• Data in table size limit @ 129491 float64s

  I don't have a studio of measure, but I'm trying to s-series OR-DAQ interface modules using the NIDAQmx.h interface.

  My problem boils down to the following in a c ++ application project console (visual studio 2005):

  #include

  int main() {}

  float64 data [128 * 128 * 6];  98304 64 - bit numbersor 786432 bytes (not a megabyte)

  }

  This command compiles and runs very well.

  If I increase the allocated size of the table given more 129491 (float64s), the program compiles well but when I run the console program, I get an exception of windows does not support.  Now that the number is just shy of 20-bit addressing for bytes, but it is not like he is exactly on the number or anything.

  I will continue to look around for a solution, but if anyone can help, that would be great.

  Thank you!

  Hello Gus,

  The stack size by default for applications compiled with Visual C++ is 1 MB. Note that the operating system and C runtime uses some stack space before that never call your main() function, so you have slightly less than a megabyte to work with. You can increase the size of the stack using the Visual C++/f option, but a better approach is to allocate the array on the heap instead (using malloc () free () or new/delete [] []).

  Brad

• How can ensure me that my chart has several plots?

  I'm trying to get a chart that plots from a txt file I have. The first coumn came and the rest of the columns are data from the various sensors. On the chart that I got it looks like its reading at the first cloumn.

  

  How can I ensure that I receive a plot of each column?

  Thank you

  Altenbach says:

  (I think that your table manipulations may be further simplified)

  Yes, read the converted file and use "delete from table" as follows:

  

  Much simpler!