curve-fitting

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Scipy optimize.curve_fit sometimes won't converge

I\'m trying to use numpy.optimize.curve_fit to estimate the frequency and phase of an on/off sequence.[详细]

2023-01-19 12:31 分类：问答
Fitting polynomial model to data in R

I\'ve read the answers to this question and they are quite helpful, but I need help. I have an example data set in R as follows:[详细]

2023-01-17 21:45 分类：问答
Power function fit

I want to fit a power function to a dataset. I\'m using this method: http://mathworld.wolfram.com/LeastSquaresFittingPowerLaw.html[详细]

2023-01-13 09:58 分类：问答
R : catching errors in `nls`

I\'m fitting some exponential data using nls. The code I\'m using is: fit <- nls(y ~ expFit(times, A, tau, C), start = c(A=100, tau=-3, C=0))[详细]

2023-01-01 20:45 分类：问答
fitting two dimensional curves in matlab

There\'s a toolbox function for the curve fitting 开发者_StackOverflowtoolbox called cftool that lets you fit curves to 1-d data. Is there anything for 2-d data?Jerry suggested two very good choices.[详细]

2023-01-01 20:39 分类：问答
Finding the Formula for a Curve

Is there a program that will take \"response curve\" values from me, and provide a formula that approximates the response curve?[详细]

2022-12-31 12:00 分类：问答
How can I calculate a trend line in PHP?

So I\'ve read the two related questions for calculating a开发者_Python百科 trend line for a graph, but I\'m still lost.[详细]

2022-12-29 07:55 分类：问答
How do I implement such an invertible mapping(one-to-one) for curves using MATLAB?

So that several curves X,Y can be mapped to another curve R,which is invertible so that I can still get X,Y from R.[详细]

2022-12-28 11:45 分类：问答
Kink detection in drawn polylines

Users can sketch in my app using a very simple tool (move mouse while holding LMB). This results in a series of mousemove events and I record the cursor lo开发者_运维问答cation at each event. The resu[详细]

2022-12-28 04:08 分类：问答
Curve fitting: Find the smoothest function that satisfies a list of constraints

Consider the set of non-decreasing surjective (onto) functions from (-inf,inf) to [0,1]. (Typical CDFs satisfy this property.)[详细]

2022-12-27 19:37 分类：问答