Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I can’t seem to use TTR indicator functions direclty with period.apply() from XTS. Please help me figure out what I’m doing wrong.
> require(TTR)
> require(quantmod)
> require(xts)
> data(sample_matrix)
> period.apply(sample_matrix, endpoints(sample_matrix,"weeks"), RSI)
Error in EMA(c(NA, 0.190714286249097, 0.190459011271606, 0, 0, 0, NA, :
Invalid 'n'
I also tried to as.xts(sample_matrix) first but it doesn’t help.
Based on the comments to your question, I think you want something like this: