Problems with BBsolve and returning a value

[Weisellu]

Hey guys!
I am getting an error which I can't really get out why it's happening or what it is supposed to tell me.

 object 'ans.best' not found

with the Traceback

4.
BBsolve(par = v_b_function(rf = RF, k = k, sig_a = sig_a, C = IntexpNon) + 
    1e+05, fn = FindV, k = k, sig_a = sig_a, 1:77) 
3.
Vfunction(k, sig_a = Start_sig_a) 
2.
FindAssetVol(k = Start_k, Start_sig_a = Start_sig_a) 
1.
FindK_Sig(Start_k = 0.05, Start_sig = 0.2) 

I am trying to work with an iterative approach to come to a real value.

[pieterjanvc]

Hi,

Welcome to the RStudio community!

In order for us to help you with your question, please provide us a minimal reproducible example where you provide a minimal (dummy) dataset and code that can recreate the issue. Once we have that, we can go from there. For help on creating a Reprex, see this guide:

FAQ: How to do a minimal reproducible example ( reprex ) for beginners

A minimal reproducible example consists of the following items: A minimal dataset, necessary to reproduce the issue The minimal runnable code necessary to reproduce the issue, which can be run on the given dataset, and including the necessary information on the used packages. Let's quickly go over each one of these with examples: Minimal Dataset (Sample Data) You need to provide a data frame that is small enough to be (reasonably) pasted on a post, but big enough to reproduce your issue. Let's say, as an example, that you are working with the iris data frame head(iris) #> Sepal.Length Sepal.Width Petal.Length Petal.Width Species #> 1 5.1 3.5 1.4 0.…

Good luck!
PJ

[Weisellu]

head(iris,5)[, c("date","equity","ebt","non-interest expense","interest expense","rf")]
datapasta::df_paste(head(iris, 5)[, c("date","equity","ebt","non-interest expense","interest expense","rf")])
data.frame(
date = c(41999,12000,22000,32000,42000)
equity=c(116012200.00,114308300.00,131206000.00,117006200.00,120982100.00)
ebt =c(419100.00,607800.00,517700.00,545500.00,258700.00)
non-interest expense= c(38540000,47947000,47947000,47947000,47947000)
interest expense = c( 3404000,6719000,6719000,6719000,6719000)
rf = c( 1.94,2.26,2.26,2.26,2.26)
)

Like this?

[andresrcs]

So far you have sample data on a copy/paste friendly format, now try to integrate that with relevant code that reproduces your issue (including library calls for the packages you are using).