Plotly: add_trace in a loop

Question

I\'m trying to add_trace ad each loop, but I get only one plot with multiplies lines on over each other.

mean <- -0.0007200342
sd   <- 0.3403711
N=10
T         


        

Answer 1

Nasty, but works:

mean <- -0.0007200342
sd   <- 0.3403711
N=10
T=1
Delta = T/N

W = c(0,cumsum( sqrt(Delta) * rnorm(N, mean=mean, sd=sd)))
t <- seq(0,T, length=N+1)


for(i in 1:5){

  W <- c(0,cumsum( sqrt(Delta) * rnorm(N, mean=mean, sd=sd)))

  assign(paste("W_",i,sep=""),W)
  assign(paste("Name_", i, sep=""), paste("Name",i,sep=""))
  if(i==1){
    pString<-"p<-plot_ly(x = t, y = W_1, name='W1')"
  } else {
    pString<-paste(pString, " %>% add_trace(x=t, y =",  eval(paste("W", i, sep="_")),", name=", eval(paste("Name", i, sep="_")), ")", sep="")
  }

}
eval(parse(text=pString))
print(p)