我从源代码安装了最新的quantstrat，之前的错误luxor.4已经消失，但仍然收到如下警告信息：
Warning message:
In data.frame(forex.1 = list(param.combo = list(EnterLong = 1L, :
row names were found from a short variable and have been discarded
运行sessionInfo()会返回以下内容：
R version 3.2.3 (2015-12-10)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
Running under: OS X 10.11.3 (El Capitan)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] parallel stats graphics grDevices utils
[6] datasets methods base
other attached packages:
[1] doMC_1.3.4
[2] iterators_1.0.8
[3] quantstrat_0.9.1709
[4] foreach_1.4.3
[5] dplyr_0.4.3
[6] blotter_0.9.1695
[7] PerformanceAnalytics_1.4.3541
[8] FinancialInstrument_1.2.0
[9] quantmod_0.4-5
[10] TTR_0.23-0
[11] xts_0.9-7
[12] zoo_1.7-12
loaded via a namespace (and not attached):
[1] Rcpp_0.12.3 codetools_0.2-14
[3] lattice_0.20-33 assertthat_0.1
[5] grid_3.2.3 R6_2.1.2
[7] DBI_0.3.1 magrittr_1.5
[9] robustbase_0.92-5 tools_3.2.3
[11] DEoptimR_1.0-4 compiler_3.2.3
我是R的新手，我无法验证此警告是否微不足道。有人能给我一些建议吗？感谢