R语言:读取图片,并将其中4张图片合并为一张图,结果却只有序号、没有图片:
1、代码及运行结果
```r
> library(magick)
> library(ggplot2)
> library(ggpubr)
>
> ## 4、读取图片文件名 ####
> files <- dir()
> files
[1] "DALY-A.JPEG" "DALY-C.JPEG" "DALY-G.JPEG" "DALY-Global.JPEG" "DALY-HMSDI.JPEG" "DALY-HSDI.JPEG"
[7] "DALY-LMSDI.JPEG" "DALY-LSDI.JPEG" "DALY-MSDI.JPEG" "DE-A.JPEG" "DE-C.JPEG" "DE-G.JPEG"
[13] "DE-Global.JPEG" "DE-HMSDI.JPEG" "DE-HSDI.JPEG" "DE-LMSDI.JPEG" "DE-LSDI.JPEG" "DE-MSDI.JPEG"
[19] "in-A.JPEG" "in-C.JPEG" "in-G.JPEG" "in-Global.JPEG" "in-HMSDI.JPEG" "in-HSDI.JPEG"
[25] "in-LMSDI.JPEG" "in-LSDI.JPEG" "in-MSDI.JPEG" "PR-A.JPEG" "PR-C.JPEG" "PR-G.JPEG"
[31] "PR-Global.JPEG" "PR-HMSDI.JPEG" "PR-HSDI.JPEG" "PR-LMSDI.JPEG" "PR-LSDI.JPEG" "PR-MSDI.JPEG"
>
> ## 5、中国 ####
> p1 <- image_read("in-C.JPEG")
> p1
# A tibble: 1 × 7
format width height colorspace matte filesize density
<chr> <int> <int> <chr> <lgl> <int> <chr>
1 BMP3 1024 768 sRGB TRUE 3145782 38x38
> p2 <- image_read("PR-C.JPEG")
> p2
# A tibble: 1 × 7
format width height colorspace matte filesize density
<chr> <int> <int> <chr> <lgl> <int> <chr>
1 BMP3 1024 768 sRGB TRUE 3145782 38x38
> p3 <- image_read("DE-C.JPEG")
> p3
# A tibble: 1 × 7
format width height colorspace matte filesize density
<chr> <int> <int> <chr> <lgl> <int> <chr>
1 BMP3 1024 768 sRGB TRUE 3145782 38x38
> p4 <- image_read("DALY-C.JPEG")
> p4
# A tibble: 1 × 7
format width height colorspace matte filesize density
<chr> <int> <int> <chr> <lgl> <int> <chr>
1 BMP3 1024 768 sRGB TRUE 3145782 38x38
>
> library(ggpubr)
> g1 <- ggarrange(p1,p2,p3,p4, nrow=2,ncol=2,labels="AUTO")
> g1
>
2、组合的图片,只有序号(ABCD),没有图片显示