fitting's questions - English 1answer

1.029 fitting questions.

I have some set of points making a specific pattern. I want to find a linear mapping (dilations + translations) to find a similar pattern in a second larger set of points. I want to find the best (or ...

I am trying to fit a set of data points using exponential functions as the underlying process suggests an exponential decay. The data points are: ...

I'm trying to fit this data As you can see there's two peaks. I want to fit this curve with two normal distribution with the same variance but different mean. So far I've got this: ...

So, where to begin. I have a certain dataset that I want to fit to a function. However, the function is rather complicated (matrix inversions, linearsolve) and does in general not have a closed form ...

I want to read in an xlsx (Excel) or TSV (tab-delimited) file, assuming this results in a rectangular table of data. Then I after applying GroupBy (using multiple keys), I should have several ...

I am trying to find out how to find a good interpolation of a periodic function I have from some data points. The only problem is that I need to make sure that derivatives at the starting and ending ...

I have the equation ...

Problem in using FindFit

2 answers, 235 views fitting
I have the following set of datadata={{0,0,0},{0,2,1},{0,4,2.247},{0,6,3.627},{0,8,5.031},{1,0,3.346}};where the values are {n, L,$\varepsilon$} and satisfy ...

I want to find minima. My code: ...

Taking the example from the Mathematica documentation for Fit, consider the following ...

I plot the graphs (there are two more) with FindFit fitting method. Now, i want to put all the graphs into one graph with both data and fitting lines. However, the code that i wrote below shows only ...

Consider the following MWE, where I try to pass starting values to FindDistributionParameters[]: ...

What are the practical differences between:FindFit,NonlinearModelFit,and Fit. Do they call ...

Could someone tell me how to find beta1? I have the following data: I don't know how to write beta1, and I don't find ...

I'm having an extremely hard time getting linearmodelFit, findFit, or nonlinearModelFit to give me an output that I can work with and I can't seem to find the problem. My list is ...

Suppose I have a dataset that is derived from a random sampling from a mixture distribution ...

I am performing a fit on experimental data with zero degree of freedom but with error bar using NonlinearModelFit: ...

I want to convolve two equation, then I want to find the parameters. But it doesn't give the answer and Takes too much time. What is the wrong with my code? ...

I would like to better understand the process that Mathematica uses to determine the standard error when fitting with NonlinearModelFit. I have been reading this ...

I have following data: ...

I used the following code for fitting but it does not produce an output.I kept it nearly 3 to 4 hours but it does not give any output. How should I make it correct?I have used two equation(f1,f2).I ...

I have two following data-sets: ...

I am having a difficult time fitting my data to a distribution and finding the mean of the distribution. The data set is large, but here is a small sample ...

I would like to fit a 3D surface in Mathematica, and I can do a rough fitting using the following code: ...

Does Mathematica have 2D smoothing spline interpolation built in? I requires an interpolation method with smooth first derivatives and cubic bivariate splines fulfill this nicely. In python I would ...

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If I do a fit, such asnlm = NonlinearModelFit[data, {x^a Cos[b x + c]}, {a,b,c} ,{x}]then you return a FittedModel object, ...

I'm attempting to fit a linear model and Mathematica returns the error message: "The rank of the design matrix 9 is less than the number of terms 10 in the model. The model and results based upon it ...

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Deming regression finds a regression line that relates x and y variables for how they covary, i.e., it finds the relationship between x and y, whereas, for example, ordinary least squares would find ...

I tried to fit my data with a very complicate Integrated function. But I get many errors messages when I perform the fit. For exemple I get : NIntegrate::inumr: The integrand ....has evaluated to ...

I would like to perform a Quantile Regression within Mathematica's neural network framework. Since there exist a couple of tutorials for this exact problem in Tensorflow, i.e. Deep Quantile ...

I have 24 x-y points that are supposed to form an ellipse. ...

This is similar to the unanswered "Why the results of FindDistribution and DistributionFitTest are not consistent?" My more specific question is: Why do the PearsonChiSquare values for ...

I am asking a double check if conceptually I set up proper model and proceeding in good direction to drive conclusions. I have a distribution that looks like this: I want to test if for increasing x ...

I want to fit the Gaussian Function for the following data. How should I do it? ...

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LinearModelFit doesn't seem to support WeightedData objects. Is there anything I can do smarter than repeating the data ...

First I entered the data and graph it, then I used the non-linear adjustment command to have a model of my data, I asked Mathematica for the square r, to know how good the model was, then I put ...

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I would like to take the results of Fit (or any FittedModel) and treat them as text, including making substitutions for the ...

I have a large data set of different values of time. I want to make 1) a histogram 2) fit an exponential function of form A+B*exp(-t/b) from the data To my understanding, this is how I'd do it<...

I'm trying to estimate the parameters for the following pair of differential equations ...

I want to apply a range for parameters(a,b,c,d).What is the correct way to do it? ...

I have the following pair of nonlinear ordinary differential equations ...

I am sorry if this is on here already (or if it is really easy!) I have looked and I am not sure how to go about it. I have data that is 1000 rows and each row contains 200 columns (x1,x2,x3,...) I ...

When I run p = Predict[trainingSet, Method -> "LinearRegression"];, how is that different from just running ordinary least squares? It's quite slow on a ...

I have run a simulation which has resulted in some bad data (see graph below). What would be the best way to detect and interpolate the missing points in Mathematica (i.e. remove the noise)? Raw ...

I have two datasets: ...

I am working on a Mathematica notebook and making graphs for my lab. I can't make a graph for my linearized data as LinearModelFit gives equation in ...

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