我试图创建一个数据框,其中包含作为列表嵌入数据框中的图,以便我可以查看由行表示的每个模型的两个图。
这是一个显示我的困境的最小例子
public void verifyTable() {
String Test = driver.findElement(loggedinas).getText();
boolean isDue = false;
isDue = UtilClass.isElementPresent(driver, TableContent);
if (isDue) {
if (isDue = driver.findElement(TableContent).getText() != null)
;
System.out.println("Action Required = " + isDue);
WebElement table_element = driver.findElement(Table);
List<WebElement> tr_collection = table_element
.findElements(TableRow);
System.out.println("Number Of Due = " + tr_collection.size());
int row_num, col_num;
row_num = 1;
for (WebElement trElement : tr_collection) {
List<WebElement> td_collection = trElement.findElements(By.xpath("td"));
System.out.println("--NUMBER OF COLUMNS = "
+ td_collection.size() + "--");
col_num = 1;
for (WebElement tdElement : td_collection) {
// System.out.println("Pending # "+row_num+", col # "+col_num+
// "text="+tdElement.getText());
System.out.printf(" # " + tdElement.getText(), " ID "
+ tdElement.getText());
col_num++;
}
row_num++;
}
map和bind_rows都以package array;
import java.util.Scanner;
import java.util.Arrays;
public class Array {
public static void main(String[] args) {
int[] a = new int[10];
Scanner input = new Scanner(System.in);
System.out.println("Please enter ten numbers: ");
input.nextInt();
for(int j=0; j<10; j++)
a[j]=input.nextInt();
System.out.println("Your number list is:");
System.out.println(Arrays.toString(a));
}
}
}
答案 0 :(得分:2)
这样做:
do.call(rbind,not_df)
答案 1 :(得分:1)
这是tidyverse
方法,但我修改了您的示例。如果这是你的目标,请告诉我:
df = data.frame(x=1:5, a=11:15, b=21:25)
df = df %>% group_by(x) %>%
mutate(p1 = list(ggplot(., aes(a, b)) + geom_point()),
p2 = list(ggplot(., aes(a, b)) + geom_point())) %>%
ungroup %>%
nest(p1, p2, .key=plots)
df
# A tibble: 5 × 4 x a b plots 1 1 11 21 <tibble [1 × 2]> 2 2 12 22 <tibble [1 × 2]> 3 3 13 23 <tibble [1 × 2]> 4 4 14 24 <tibble [1 × 2]> 5 5 15 25 <tibble [1 × 2]>
答案 2 :(得分:1)
如果您的函数输出tibble
(来自tidyverse / package tibble )而不是list
,您可以直接使用map_df
来获取输出想。
我发现tribble
函数在这里更有用,因为tibble
导致回收单个值,除非我使用plots
列的嵌套列表。
使用tribble
foo2 <- function(x) {
tibble::tribble(
~plots, ~bar, ~x,
list(qplot(1), qplot(2)), 'bar', x
)
}
purrr::map_df(1:5, foo2)
# A tibble: 5 × 3
plots bar x
<list> <chr> <int>
1 <list [2]> bar 1
2 <list [2]> bar 2
3 <list [2]> bar 3
4 <list [2]> bar 4
5 <list [2]> bar 5
使用tibble
和plots
foo <- function(x) {
tibble::tibble(
plots = list(list(qplot(1), qplot(2))),
bar = 'bar',
x = x
)
}
purrr::map_df(1:5, foo)
# A tibble: 5 × 3
plots bar x
<list> <chr> <int>
1 <list [2]> bar 1
2 <list [2]> bar 2
3 <list [2]> bar 3
4 <list [2]> bar 4
5 <list [2]> bar 5