R package ggpmisc can be used to show equation of lm model and poly model on ggplot2 (See here for reference). I wonder how I could show nls model equation results on ggplot2 using ggpmisc. Below i...

After spending countless of hours on getting to the core of a bug, I eventually boiled down a problem to the use of string.Compare with StringComparison.InvariantCultureIgnoreCase in .NET 5. Consid...

I am having this error in my j2ee web application. java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1 ORA-12705: Cannot access NLS data files or invalid environment specifie...

I am an R newbie trying to fit plant photosynthetic light response curves (saturating, curvilinear) to a particular model accepted by experts. The goal is to get estimated coefficient values for Am...

I'm having some trouble to predict confidence intervals ros an nls in r. pl <- ggplot(data) + geom_point(aes(x=date, y=cases),size=2, colour="black") + xlab("Date") + ylab("Cases") model = nls...

I a trying to fit a first order differential model using nlme and lsoda. Here is the basic idea: I first define the function allowing to generate the solution of the differential equation: librar...

Oracle 11.2.0.3.0, APEX 4.1.1.00.23. We need to display numbers in our application with the format FM999999999990.000 and dates with the English format DD-MON-YYYY. Even if the application langua...

I have data from the USGS Nation Water Data website. I am currently trying to plot and fit curves to the data to use in prediction for different measurements taken within the dataset (dissolved oxy...

My dojo application breaks after building, during loading the app, throwing 'multipleDefine' and giving this error: Error {src: "dojoLoader", info: Object} Message: multipleDefine info: Ob...

This is a question that relates to my earlier question geom_smooth with facet_grid and different fitting functions. In that question, I was trying to use a different fitting function in geom_smooth...

I am using nlsLM {minpack.lm} to find the values of parameters a and b of function myfun which give the best fit for the data set, mydata. mydata=data.frame(x=c(0,5,9,13,17,20),y = c(0,11,20,29,38...

I've tried searching the other threads on this topic but none of the fixes are working for me. I have the results of a natural experiment and I want to show the number of consecutive occurrences of...

I have been working on a curve fitting script which fits 3 exponentially modified Gaussians (EMGs) to a convolved curve. My base function is similar to a Gaussian distribution, but includes a third...

I am trying to fit non parametric functions to curve using nls. When I try to fit all the parameters nls was not able to solve the equations. So, I split the equations and applied nls on individu...

I would like to fit multiple curves at once, and compare them statistically, in terms of their 3 estimated parameters – asymptote, slope and x0. Here is an idealized image of the data to be modele...

I asked this question a while ago. I am not sure whether I should post this as an answer or a new question. I do not have an answer but I "solved" the problem by applying the Levenberg-Marquardt al...

I have been through many questions on SO but I am not able to find a fix for my problem in related answers. I have a table like this stored as PAO1.data: Name P AO Prog1 0.654 59.702 Prog2 0.149 4...

I use nls.lm from the minpack.lm package to fit a lot of non linear models. It often fails after 20 iterations because of a singular gradient matrix at initial parameter estimates. The problem is...

I'm having trouble finding the right curve to fit to my data. If someone more knowledgeable than me has an idea/solution for a better fitting curve I would be really grateful. Data: The aim is to ...

I have a dataset like this df x y 7.3006667 -0.14383333 -0.8983333 0.02133333 2.7953333 -0.07466667 and I would like to fit an exponential function like y = a*(exp(bx)). This is what I tried ...

I'm trying to fit a non-linear model to a series of measurements collected on several plots throughout the season. Below is a subsample from the larger dataset. data: dput(nee.example) structu...

The following nls code throws the following error Convergence failure: singular convergence (7) for fm2(for Data2). But the same code for similar dataset works fine (fm1 for Data1). Works Fine for ...

I want to use y=a^(b^x) to fit the data below, y <- c(1.0385, 1.0195, 1.0176, 1.0100, 1.0090, 1.0079, 1.0068, 1.0099, 1.0038) x <- c(3,4,5,6,7,8,9,10,11) data <- data.frame(x,y) When I ...

I'm trying to run a nonlinear multiple regression in R with a dataset, it has thousands of rows so I'll just put the first few here: Header.1 Header.2 Header.3 Header.4 Header.5 Header.6 Header.7 ...

I want to fit the following function to my data: f(x) = Offset+Amplitudesin(FrequencyT+Phase), or according to Wikipedia: f(x) = C+alphasin(omegaT+phi) my data is stored in a file in two columns...