Hi Rui and Ivan,Thank you explain of the code for me in detail. This is very
helpful. And the code works well now.Happy Holiday,Kai
On Wednesday, December 22, 2021, 02:30:49 PM PST, Rui Barradas
wrote:
Hello,
y[i] and c[i] are character strings, they are not variables of data set mpg.
Hello,
There's a stupid typo in my previous post. Inline
Às 22:30 de 22/12/21, Rui Barradas escreveu:
Hello,
y[i] and c[i] are character strings, they are not variables of data set
mpg.
To get the variables, use, well, help("get").
Note that I have changed the temp dir to mine. So I created
Hello,
y[i] and c[i] are character strings, they are not variables of data set mpg.
To get the variables, use, well, help("get").
Note that I have changed the temp dir to mine. So I created a variable
to hold the value
tmpdir <- "c:/temp/"
for (i in seq(nrow(mac))){
mpg %>%
filter(hwy
strange, I got error message when I run again:
Error: unexpected symbol in:
" geom_point()
ggsave"
> }
Error: unexpected '}' in "}"
On Wednesday, December 22, 2021, 10:18:56 AM PST, Kai Yang
wrote:
Hello Eric, Jim and Ivan,
Many thanks all of your help. I'm a new one in R area. I
Hello Eric, Jim and Ivan,
Many thanks all of your help. I'm a new one in R area. I may not fully
understand the idea from you. I modified my code below, I can get the plots
out with correct file name, but plots are not using correct fields' name. it
use y[i], and c[i] as variables' name, does
On Wed, 22 Dec 2021 16:58:18 + (UTC)
Kai Yang via R-help wrote:
> mpg %>% filter(hwy <35) %>% ggplot(aes(x = displ, y = y[i],
> color = c[i])) + geom_point()
Your code relies on R's auto-printing, where each line of code executed
at the top level (not in loops or functions) is run
You may have to add an explicit 'print' to ggplot
library(ggplot2)
library(tidyverse)
y <- c("hwy","cty")
c <- c("cyl","class")
f <- c("hwy_cyl","cty_class")
mac <- data.frame(y,c,f)
for (i in nrow(mac)){
mpg %>%filter(hwy <35) %>%
print(ggplot(aes(x = displ, y = y[i], color = c[i])) +
Try replacing
"c:/temp/f[i].jpg"
with
paste0("c:/temp/",f[i],".jpg")
On Wed, Dec 22, 2021 at 7:08 PM Kai Yang via R-help
wrote:
> Hello R team,I want to use for loop to generate multiple plots with 3
> parameter, (y is for y axis, c is for color and f is for file name in
> output). I created a
nrow() is just the numbers of rows in your data frame, use seq_len(nrow())
or seq(nrow()) to loop through all row numbers
On Wed, Dec 22, 2021, 12:08 Kai Yang via R-help
wrote:
> Hello R team,I want to use for loop to generate multiple plots with 3
> parameter, (y is for y axis, c is for color a
Hello R team,I want to use for loop to generate multiple plots with 3
parameter, (y is for y axis, c is for color and f is for file name in output).
I created a data frame to save the information and use the information in for
loop. I use y[i], c[i] and f[i] in the loop, but it seems doesn't wor
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