Storing multiple results from for loop

Question

I am using a for loop to perform repeatability analysis on subsets of my data. I am struggling to find a function that will store the results of my for loop in a data frame, because the repeatability analysis output gives R, Standard Error, Confidence Interval, and p-values. I would like to only store R and CI values.

Here is my code:

p<-10000 for(i in 1:P){ newdf<-df[df$ID %in% sample(unique(df$ID), 16), ] m1<-rpt(Behaviour~Temperature+(1|ID),grname="ID",data=newdf,datatype="Gaussian",nboot=1000,npermut=1000) }

Can anyone help?

Ronak Shah · Accepted Answer · 2020-07-14 11:35:55Z

1

You can create a numeric vector to store R and CI values :

p<-10000 R_value <- numeric(length = p) CI_value <- numeric(length = p) for(i in 1:P) { newdf<-df[df$ID %in% sample(unique(df$ID), 16), ] m1<- rptR::rpt(Behaviour~Temperature+(1|ID),grname="ID",data=newdf, datatype="Gaussian",nboot=1000,npermut=1000) R_value[i] <- m1$R CI_value[i] <- m1$CI }

answered Jul 14, 2020 at 11:35

Ronak Shah

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6 Comments

Lizzie Yarwood Over a year ago

Thanks Ronak, but unfortunately the R_value and CI_value are just returning a string of 0's! Any suggestions?

Ronak Shah Over a year ago

Did you run the loop? When we initialise R_value and CI_value, they are initialised to 0 but after running the loop there should be some value.

Lizzie Yarwood Over a year ago

I ran the loop, and then called R_value() and CI_value() afterwards as no values appeared after running the loop..

Ronak Shah Over a year ago

You should do R_value and CI_value. () is used for functions. It seems to work with example shared in ?rpt page. If it doesn't work for your data, can you share your data?

Lizzie Yarwood Over a year ago

It seems that this works when I run the repeatability analysis outside of the for loop, but 0's are still generated when I use the for loop. Any suggestions on where I might me going wrong with the loop?

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