我确实运行了此命令scrapy crawl --logfile = crawl.log，但是没有生成日志文件，并且收到以下错误。我试图调试代码，什么也看不到。
new.data[order(new.data$prob, decreasing = TRUE),]
head(new.data[order(new.data$prob, decreasing = TRUE),])
Pclass Age Sex prob
521 1 0.42 female 0.9770664
515 1 0.67 female 0.9768586
494 1 0.75 female 0.9767917
377 1 0.83 female 0.9767247
473 1 0.92 female 0.9766490
437 1 1.00 female 0.9765815