Re: [R] nls minimum factor error

2010-04-19 Thread Karen Chang Liu
Hi Dennis, Thank you for your suggestion. Firstly, the below minimum step size is only a warning because I told it to be (warnOnly=T), otherwise it's thrown as an error. I'm not sure if this is completely arbitrary. About segmented regression, I have tried to use it, but it doesn't seem to work ri

[R] nls minimum factor error

2010-04-19 Thread Karen Liu
Hi, I have a small dataset that I'm fitting a segmented regression using nls on. I get a step below minimum factor error, which I presume is because residual sum of square is still "not small enough" when steps in the parameter space is already below specified/default value. However, when I l

[R] nls minimum factor error

2010-04-19 Thread Karen Chang Liu
Hi, I have a small dataset that I'm fitting a segmented regression using nls on. I get a step below minimum factor error, which I presume is because residual sum of square is still "not small enough" when steps in the parameter space is already below specified/default value. However, when I look a