CODEWITHSUNDEEP
rggplot2
Alexander
Alexander

Reputation: 4655

Saving each graph to the directory with its name on it

I'm currently using for loop to save my graphs to the working directory what ever it is. OTH, I want to add one more feature that creating the directory with the graph name and store corresponding figures to those folder. For instance if the graph name is setosa create folder named setosa and store setosa graph to inside to that new directory.

There is a one relative how-to-save-plots-inside-a-folder here but no solution is clearly given.

Here is my current working code for saving graphs to working directory. 

library(ggplot2)
library(dplyr)

plot_list = list() # Initialize an empty list
     for (i in unique(iris$Species)) {
  p = ggplot(iris[iris$Species == i, ], aes(x=Sepal.Length, y=Sepal.Width)) +
     geom_point(size = 3, aes(colour = Species))
  plot_list[[i]] = p
}

for (i in unique(iris$Species)) {
  file_name = paste( i, ".tiff", sep="")
  tiff(file_name)
  print(plot_list[[i]])
  dev.off()
}

Upvotes: 1

Views: 260

Answers (3)

datawookie
datawookie

Reputation: 6584

Suppose that you set i to "setosa".

i <- "setosa"

Using file.path() is IMHO the most idiomatic way to create the file name:

filename <- file.path(".", i, paste0(i, ".tiff"))

This has the advantage of also being platform independent (as opposed to inserting / explicitly into path).

The only thing that remains is to ensure that the folder exists.

dir.create(i, showWarnings = FALSE)

The showWarnings = FALSE option suppresses the warning if the folder already exists.

Upvotes: 0

Meysam
Meysam

Reputation: 39

such as

 fillname<-paste0("./","mey", "/",i,".tiff",sep = "")

"mey" is the subdirectory folder.

Upvotes: 0

Brian
Brian

Reputation: 8305

Replace file_name = ... with:

...
file_name = paste0("./", i, "/", i, ".tiff")
...

Upvotes: 4

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