Saving a high resolution image in R

Question

I m creating a scatterplot using ggplot in R  R version 3 2 1   I want to save the graph as a tiff image in 300 DPI in order to publish it in a journal  However  my code using ggsave or tiff   with dev off doesn t seem to work and only saves it in 96 DPI  Any help would be greatly appreciated   Below is a sample of my code using both methods   library ggplot2   x  lt - 1 100 y  lt - 1 100  ddata  lt - data frame x y   library ggplot2    using ggsave ggplot aes x  y   data   ddata      geom point       geom smooth method lm  fill   NA  fullrange TRUE  color    black    ggsave  test tiff   units  in   width 5  height 4  dpi 300  compression    lzw     using tiff   and dev off tiff  test tiff   units  in   width 5  height 4  res 300  compression    lzw    ggplot aes x  y   data   ddata      geom point       geom smooth method lm  fill   NA  fullrange TRUE  color    black    dev off     The output is a 96 DPI with a width of 1500 pixels and a height of 1200 pixels

User · Answer

A simpler way is ggplot data df  aes x xvar  y yvar      geom point    ggsave path   path  width   width  height   height  device  tiff   dpi 700

User · Answer

You can do the following  Add your ggplot code after the first line of code and end with dev off     tiff  test tiff   units  in   width 5  height 5  res 300    insert ggplot code dev off     res 300 specifies that you need a figure with a resolution of 300 dpi  The figure file named  test tiff  is saved in your working directory   Change width and height in the code above depending on the desired output   Note that this also works for other R plots including plot  image  and pheatmap   Other file formats  In addition to TIFF  you can easily use other image file formats including JPEG  BMP  and PNG  Some of these formats require less memory for saving

[r] Saving a high resolution image in R

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