R – Generate multiple plots in R markdown

rr-markdownrstudio

I want to make automatic report in R Markdown with multiple similar plots. I have a list which contains some similar data frames. I need a separate plot in output for each data frame. The main problem is that I need to reproduce this report with different conditions and length of the list can be different. I tried this solution:

for (i in 1:length(list.of.dfs)) {
plot(list.of.dfs[[i]])
}

But it didn't work.

Best Answer

(Can't post graphics in comments…not necessarily suggesting this is an answer)

The following:

---
output: html_document
---

```{r}
mtcars_list <- list(mtcars, mtcars, mtcars)
for (i in seq_along(mtcars_list)) {
  plot(mtcars_list[[i]], main=i)
}
```

produces:

Please check your data and/or provide a reproducible example.

Related Solutions

R – How to sort a dataframe by multiple column(s)

You can use the order() function directly without resorting to add-on tools -- see this simpler answer which uses a trick right from the top of the example(order) code:

R> dd[with(dd, order(-z, b)), ]
    b x y z
4 Low C 9 2
2 Med D 3 1
1  Hi A 8 1
3  Hi A 9 1

Edit some 2+ years later: It was just asked how to do this by column index. The answer is to simply pass the desired sorting column(s) to the order() function:

R> dd[order(-dd[,4], dd[,1]), ]
    b x y z
4 Low C 9 2
2 Med D 3 1
1  Hi A 8 1
3  Hi A 9 1
R>

rather than using the name of the column (and with() for easier/more direct access).

R – Combine a list of data frames into one data frame by row

Use bind_rows() from the dplyr package:

bind_rows(list_of_dataframes, .id = "column_label")

Best Answer

Related Solutions

R – How to sort a dataframe by multiple column(s)

R – Combine a list of data frames into one data frame by row

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