Hello Team, I create a csv file (mac2) to save parameter values. the file looks like:
y,c,f hwy,cyl,hwy_cyl2 cty,class,cty_class2 Then I load the file into R and apply the parameters y, c, f in for loop, see my code below: library(ggplot2) library(tidyverse) library(readr) mac2 <- read_csv("C:/temp/mac2.csv") View(mac2) for (i in seq(nrow(mac2))){ mpg %>% filter(hwy <35) %>% ggplot(aes(x = displ, y = get(y[i]), color = get(c[i]) )) + geom_point()+ ylab(y[i]) + guides(color = guide_legend(title = c[i])) ggsave(paste0("c:/temp/",f[i],".jpg"),width = 9, height = 6, dpi = 1200, units = "in") } but I got an error message: "Error in dots_list(..., title = title, subtitle = subtitle, caption = caption, : object 'y' not found" Does anyone know how to fix the problem? Thanks, Kai [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.