quantstrat package 库存 function: 错误: C 堆栈使用量太接近限制

Question

I am new to financial mathematics and trying to do a homework about backtest with R:

library(FinancialInstrument)

start.date <- '2017-01-01'
end.date <- '2019-12-30'

HSI <- getSymbols(Symbols="^HSI",src="yahoo",from=start.date,to=end.date,index.class="POSIXct",adjust=T, auto.assign = F)
HSI <- HSI %>% na.omit()

currency(primary_id='HKD')

stock(primary_id=HSI,currency='HKD',multiplier=500,tick_size=0.05)

But I receive the following Error: C stack usage 7971792 is too close to the limit

My R session:

Cstack_info()
  size    current  direction eval_depth 
  7969177      13136          1          2 

I saw there is similar post but no one answer: Error: C stack usage is too close to the limit in R

Is there anyone can advise about the Cstack error?

Answer 1

Don't use auto.assign.

getSymbols(Symbols="2800.HK",src="yahoo", from=start.date,to=end.date,index.class="POSIXct",adjust=T)

`2800.HK` <- `2800.HK` %>% na.omit()

currency(primary_id='HKD')

stock(primary_id='2800.HK',currency='HKD',multiplier=500,tick_size=0.05)