Gigaseconds [Gs] vs Gauss [Gs]

Similar Questions

• Gauss made ignores or even lose weight?

  Dear users,

  I'm confused with the tip Gauss Fit function and weight of entry.

  My goal is to eliminate the pic in the input data (white). Now I see that the overall trend is a form of Gauss.

  My first attempt was to introduce a weighting which prefers the external data instead of the plant (i.e. "Paper1 (no zero weight)" - the Red V-shaped curve). Well, I have a bell curve which is not very good ('Gauss1' - the red curve).

  My next attempt was to define certain values of weight in the Center to zero ("weights2 (some zero weight)"-blue dots, of zeros at the Center "). Surprise, surprise, it's even worse ('Gauss2' - curve blue).

  So, I deleted I put some values in the amplitudes of the nan - these values that are part of the PIC. The results is not of all publishable.

  As next, I removed the 7 points around the Center completely and mounted the two wings of the input data. Then I've interpolated missing the rest and came up with "Gauss3" - the curve orange.

  As a cherry on top of it. I pasted the original with the Gauss3 data interpolated to finally get rid of the central peak.

  My question is: why Gauss peak had ignored my weight? According to aid, they should not be different from zero; That's all.

  The problem may be due to the entry of "setting limits" to the Gaussian peak Fit.vi.  By default, the offset min and max are both 0, forcing the offset parameter must be 0.  When I changed the min and max offset for all three instances of the Fit.vi peak Gaussian to be unconstrained (-Inf, Inf), then the fit was much better.

  -Jim

• Gauss hypergeometric function does not return a value

  I need evaluate the Gauss hypergeometric function (mathematics > elementary > hypergeometric functions > Function.vi Gauss) for one of the following constants:

  a = 11/6

  b = 1/6

  c = 5/6

  for different values of x, all of which are negative.  A value of x is - 4.  When I run a VI with this function, it returns NAN.  I don't know what is current as the help file says the function is set to leave Neg. infinite to 1.  A condition is placed above being defined more precisely to 1 which I'm not interested.

  We used a script MATLAB Labview node to calculate these values successfully.  I know that some other programs can only calculate the function for | x |< 1,="" but="" the="" help="" file="" in="" labview="" claims="" it="" doesn't="" have="" this="" limitation="" as="" is="" the="" case="" with="" matlab.=""  can="" anyone="" else="" confirms="" this="" problem="" or="" am="" i="" just="" overlooking="">

  Also, it would be useful to check with Mathematica to verify that I did stupid miscalculation...

  Third time is a charm.

• Application of Gauss blue to select only edges

  I created a form of transparent color that has cuts on the inside. So say, a rectangle with a circle of the cutout. I want to blur the 4 edges of the rectangle, but keep cutting a circle with thin stripes.

  A little more context. I am applying some transparent colors on top a blue print. There are sidewalks, buildings and whatnot, but there is a large field of grass all around. I want to blur most four outer edges of the grass, but continue to draw lines where the grass meets the sidewalks and buildings.

  Let me know if that makes sense. I can't download the exact image, but if the writing is in the abstract, I can recreate another drawing to explain what I'm asking.

  Thank you, Joe

  Create an additional white shape above the other, blur, select both and create a transparency mask. (Window > transparency, expand the Panel)

• magnets affecting the phone?

  Just got a collar with a magnet in it. It has a power of 2500 gauss (or something like that). It will affect my iPhone? I know that you shuldn can't keep close electronic magnets.

  I doubt that it will, as many iPhone cases contain magnets, as well as the intelligent covers for iPad. The issues raised in the past with magnets and electronics had to so with hard drives, because they work with magnetism, while iPhones have a flash memory that works differently.

• Block the Gaussian curves membership in system build FuzzyLogic

  Hello

  As indicated in the User Guide for the block SystemBuildTM FuzzyLogic (ver. Apr. 2007), you can create a curve of triangular composition simply by using the special function:

  Trg(x,a,b,c)

  Is there by chance an another special feature to create a curve of Gauss membership (such a curve for membership is very common in Fuzzy control applications)? Otherwise, any ideas on how I could define it myself, because I really need to use a Gauss membership instead of a triangular curve.

  Thank you very much.

  OK, for those of you who would be interested in using a Gaussian membership function, I just find a way to set it in the block of fuzzy logic by using the exp function, as follows:

  exp (-0.5 *(X-c) ^ 2/b ^ 2)

  where

  c is the center of the function Gaussian and b ^ 2 is the variance.

• first problem of points

  Hello

  I have a DAQ hardware that is responsible for the conduct of an electromagnet. At the start of the VI, it seems that there are three or more points of my

  measurement data are not accurate because they were taken before this area to reach its maximum and then sweep up and down. In other words, I have

  power 2V with increment 0.1 for the electromagent and the gauss meter is made of temperature. The problem is that it takes the values somewhere

  between zero and the maximum value is about 50 Mt. While it should read 50 mT for the first point, it takes 10 mT for the first, 35 mT for the second until she doing with the release of data acquisition.

  Acquisition of data (V) output: 2, 1.9, 1.7, 1.6, 1.8, 1.5,...

  supposed reading field (mT): 50, 47, 43, 41, 39, 37,...

  reading real field: 10, 29, 43, 41, 37,...

  My question is how I can tell the device to involve waiting for the domain to the value desired (max) and then start to record the data.

  Any help in doing this will be really appreciated.

  Thank you very much

  
  

• Adjustment of curve: standard deviation given

  Hello

  Using LabView and estimators. Following situation:

  I have 15points including their standard deviation. I also have set up my estimators with my individual Gaussian fitting. Basically the editing seems good.

  But how can I say labview to take care of my already calculated gap.

  I always compare it with my editing (same equation Gauss) OriginPro. If I only take my data X and Y, I get the same results.

  But when I indicate also my SD (originally), which means that X, Y and +-Y, I get a more realistic result.

  And that's what I would do with LabView so but there is no possibility to take my + y into account, isn't?

  (And no, the original for LabView screws offer me this as well.) To the I don't see )

  Someone at - it a trick?

  Thanks in advance

  That's what the matrix of weights

  Just use the reciprocal of variances

  Understand the math is useful, read using the fitting vi is the first step

  Oh, the fitting screw of LabVIEW have a weighting of entry: 0

• How can I generate a Gaussian function?

  Hello together,

  I would like to generate a Gaussian function. Y at - it a Subvi. I tried, with the Sub - VI 'Function.vi of Gauss', but without success.

  I hope someone can help me.

  Thank you

  Greetings spaetzelcounty

  LV2009

  Hi zapfile,

  I write the i.e exp(-x^2/2) Gaussian function.

  Thank you and best regards,

  srikrishnaNF

• Fit Gaussian Peak and non-linear curve Fit on small data differ from the PEAK of origin made

  Hi all

  I'm developing a program in which I have to adjust the curve of Gauss on only 4 or 5 data points. When I use the Gaussian Ridge Fit or adjustment of the curve non-linear, it connects linearly all the points so that other editing software like origin's curve fitting of Gauss on the same set of data that I have attached two images is LabVIEW with Fit Gaussian of Peak and nonlinear adjustment and other is original.

  The data are

  X                       Y

  799.09857 257
  912.25256 641

  1026.00366 1516
  1137.92871 1118
  1253.43713 329

  Interesting.

  The initial default values assume all are NaN, which causes the LV calculate conjecture.  The default values for the parameter Bounds +/-Inf with the exception of the offset that are both zero. This, of course, forces the output zero offset.  It seems a strange fault, but they may have a good reason for it.

  Change the limits of compensation to something else translates the output being offset ~ 215 and the Center moves to ~ 1053.  These correspond the original result to 5 significant digits.

  Lynn

  

• Matlab script error handling

  Hello!

  I'm using Labview 2012 SP1 and I wrote a Matlab scipt to draw a Gaussian curve adjusted on a chart of the histogram.

  In some extreme conditions, the shape of the histogram prevents the Gaussian fit to be correctly calculated and Matlab throws an error (see attachment) displays in a pop-up window.

  The error is perfectly understandable, but I want to set up and to avoid the pop-up to appear.
  I wired the error so that the error text is showed in an appropriate area of Labview, the Gauss curve is not established and does not execute any code that follows in series.

  However, the popup will always appear.

  Is it possible to avoid it?

  Thank you!

  Best regards.

  Michela

  Is this something that you can recover from easily? If so, use ungroup by name to unbundle your cluster of error.  From there, you can wire the digital in a housing structure.  With this, you can have two cases: one with the error code and the other as a default value.  With the case of error code, you place a 'Clear mistakes' Vi inside and the error in this cluster and out across the wire.  In the default case, wire you the straight through error.  In this way, you disable only this one type of error.

  In 2014 or newer, the VI clear mistakes takes a digital input to ignore all the fun of the box structure.  But it's the same result.  You clear the error that you expect and that you can manage.  There is almost always a way to write your own error handling.  It depends on what exactly you need to do to recover from the error.

• Build an array of several bays

  Hello

  I'm currently trying to build a program that generates and displays a Gaussian (graph) of several optical spectral results (achievements and each saved on a different worksheet file). Results will be all that I recorded with the wavelength and the name of the file will be each added a number:

  so I have several spreasheet files...   1. txt: 1550, 2. txt - 90: 1550, etc.-85...

  I want to put it all in a single table, or spread sheet so that I can view everything as 1 Gauss curve: 1, 2-90,-85 etc...

  can anyone help? I was thinking about a certain look to add the spreadsheet files I recalibrated in the loop, but this doesn't seem to be workin

  Thank you very much

  Asiri

  Something like that?  Load the take file column and built a table 2D for columns?  It may be transposed, I'm not sure.

  

• How to add a bell curve on a histogram chart.

  I want to add a bell curve on the graph histogram similar to the attached picture. Draw the histogram already with my data, but I don't know how to add the Gauss curve.

  I really appreciate your help.

  If you have the statistical control of processes (MSP) toolkit or Datalogging and Supervisory Control (DSC), LabVIEW toolkit has many built-in histogram functions.

  Search for 'Parcel PDF histogram and Normal'

• Non-linear function Lev - Mar - output gradient functions reference table?

  Hello

  I have the whole 8.6 developer and am relatively new to labview.  First time posting, but these tips already have a lot of my problems solved.  Thank you!  My luck ran out however...

  I had worked on a recursive function to fit a set of nonlinear data, when I stumbled upon the function of lev - mar.  What a great discovery... it works very well.  However, I tried to determine the criteria for the named 'f '(X,a)' reference to the static VI which contains the lev - Mar function to fit the output.  The function performs fine without her that it will calculate the slopes in itself if the gradient table is empty, but it takes a little more time and I'm trying to speed up a bit.

  The example 'Fit Gauss surface with offset.vi' is the only example I could find where the output of f'(X,a) of the reference to the function VI is populated, but I'm a little rusty with my calculations and has failed to reverse engineer exactly what should be the values that they had classes in this table.

  I would like to be able to complete the table of f'(X,a) with the data of a 2d versus 3d surface curve in the example 'Fit Gauss surface with offset.vi.  Is attached a screenshot of the example showing the output in the example of f. '(X,a).

  Thank you very much!

  -Bill

  If you do not provide the analytical partial derivatives, LabVIEW will use automatically digital derived partial. You can watch the labview code in detail to see how it does, just open the VI and search for "LM digital gradient.vi.

  I don't know what, "recursive function" in this context, but they have an analytic expression for the partial derivatives?

  Even if the analysis of the partial derivatives are not possible, it may be an advantage to making your own derived partial inside the model. It seems to be much faster.

  You'd basically is to calculate the function several times, each time with one of the parameters that is incremented by a small delta and subtract function calculated with the current settings Plains each and divide the result by the delta. Do everything in a table 2D for the output of f'(X,a).

  The image shows one way to do this inside the model. The black square is a model where you replace you own function (f(x,a)).

  

  Let me know if you have any questions.

• How to use the DSP48E multipliers? (FPGA)

  Hello

  I am currently implementing a gauss function generator high speed on a PXI-7841R. I need several fast multipliers to calculate the exponent, so I would like to make use of the DSP48E slices. I limited the operands into chunks of less than 18 and 25, but it seems that the DSP slices are not used in all cases. I have several integer and fixed-point-multipliers in my VI, but the only compilation report States 3 used DSP-slices. Can someone tell how to make their use of Labview. I thank.

  Kind regards

  Matthias

  I'm still playing with the code, but here's an update.

  I compiled the code you provided.

  I have experienced this problem as well with reporting of XST.  It does not recognize using multipliers, as shown here:

  ======================

  Synthesis of HDL

  Macro statistics
  # Multipliers: 2
  25 x 18-bit multiplier: 2
  # Adders/Subtractors: 53
  17-bit adder                                          : 1
  18-bit adder                                          : 1
  20-bit addsub: 49
  Subtractor 27 bits: 1
  Subtractor 34 bits: 1
  # Counters                                             : 7
  16-bit down counter: 1

  ...

  However, the final report does not show the multipliers are situated within a band of DSP48 but they are if they weren't it would take a stupid amount of tissue to implement.

  Multiply it by constant (-1) is replaced by the logic, should in any case be a negate, that's why only 2 multipliers are used instead of 3 as planned on the pattern of high level.