I'm trying to fit a small dataset(just 7x1 size) with a 3-layer perceptron model, but the loss can't converge. I'm fresh to machine learning area, can ...
I'm trying to fit a small dataset(just 7x1 size) with a 3-layer perceptron model, but the loss can't converge. I'm fresh to machine learning area, can ...
I'm trying to calculate point slopes from a series of x,y data. Because some of the x data repeats (...8, 12, 12, 16...) there will be a division by z ...
so I have to find the coefficients of this function. https://mathworld.wolfram.com/LeastSquaresFittingPowerLaw.html I think I input the equation for ...
I'd like to build a nonlinear mixed effect model that describes the relationship between two variables, "x" and "y", which vary randomly by a third va ...
I´m trying to run fixed effects regressions in R using the feglm command from the fixest package. The data contains three dummy variables: (1) variabl ...
I am not familiar with nonlinear regression and would appreciate some help with running an exponential decay model in R. Please see the graph for how ...
I am having problems fitting a potential regression model of type Y = aX^b. Here is some context. I have the following data vectors: Although this ...
This is example of data and graph and I made quadratic graph using ggplot. Now I want to draw a quadratic plateau graph. So I studied the model l ...
For the following time series data: #1. dates of 15 day frequency: #2. water content in crops corresponding to the times given. I want to fit a ...
I have a dataset containing weights of chicken as a function of time. I would like to predict the weight using the following gompertz equation, whe ...
I have a set of x and y data and I want to use exponential regression to find the line that best fits those set of points. i.e.: I want to calculat ...
Dear stack overflow community, I am trying to fit the Hill equation to some fluorescence induction curves (inducer vs fluorescence response). I have ...
I have had the error in the title of this post occur 3 times in a row now and none of the first couple of resulting similar Questions on Stack Overflo ...
After fitting a non-linear mixed model with crossed categorical covariates, how do you write the model equation (with parameter estimates) for each gr ...
I'd like to fit a non-linear model using nls, but I'm getting a non-numeric argument to binary operator error: I'm trying to get a similar result w ...
I have data that looks like this: When I plot it it looks like this: I have been able to use code like this to fit a non-linear curve to my data ...
I am running a model where the response variable is proportion, inflated with a majority of 'zero' and quite a few '1' responses, the terms of the mod ...
I am new to R and I want to find the ED50 with its confidence interval in the drc package in R. I found the best model is lorentz.4 according to AIC. ...
I'm trying to find the parameters values for best fitting of the follow model function with a given set of points. (1) I used the found optimized p ...
I'm new to GEKKO and test it with a simple non linear optimization problem, but it fires an error exception of "Solution Not Found" when initial guess ...