blocks|key|1236946|text|如果您想使用ggplot2完成此操作，可以选择以下选项：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1236947|a1<-data.frame(a=c(1,2,3),b=c(45,34,67),c=c(35,56,89))
a2<-data.frame(a=c(1,2,3),b=c(35,40,60),c=c(30,59,92))
a3<-data.frame(a=c(1,2,3),b=c(45,38,57),c=c(35,52,91))

library(tidyverse)
a+<-+list(a1,a2,a3)
for+(i+in+seq_along(a)){
++a[[i]]+<-+as.data.frame(a[[i]])+%25>%25+
++++mutate(plot_name+=+paste0("a",+i))
}

a+<-+bind_rows(a)
a+%25>%25++pivot_longer(cols+=c(b,c))+%25>%25+
++ggplot(aes(x=a,+y=value,+group=name))+%2B
++geom_line(aes(colour+=+name))+%2B
++facet_wrap(.~plot_name,+nrow+=++3)|code-block|syntax|javascript|1236948|由reprex包创建于2020-02-27+(v0.3.0)|1236949|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

If you want to do it with ggplot2, this is an option:

<pre><code>a1&lt;-data.frame(a=c(1,2,3),b=c(45,34,67),c=c(35,56,89))
a2&lt;-data.frame(a=c(1,2,3),b=c(35,40,60),c=c(30,59,92))
a3&lt;-data.frame(a=c(1,2,3),b=c(45,38,57),c=c(35,52,91))

library(tidyverse)
a &lt;- list(a1,a2,a3)
for (i in seq_along(a)){
 a[[i]] &lt;- as.data.frame(a[[i]]) %&gt;% 
 mutate(plot_name = paste0("a", i))
}

a &lt;- bind_rows(a)
a %&gt;% pivot_longer(cols =c(b,c)) %&gt;% 
 ggplot(aes(x=a, y=value, group=name)) +
 geom_line(aes(colour = name)) +
 facet_wrap(.~plot_name, nrow = 3)
</code></pre>

Created on 2020-02-27 by the reprex package (v0.3.0)

blocks|key|1223940|text|也许更简单一点，也是使用ggplot|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1223941|library(tidyverse)

df+<-+bind_rows(a1,a2,a3,+.id+=+"id")+%25>%25+
++gather(`b`,+`c`,+key+=+"values",+value+=+"value")

++ggplot(df,+aes(a,+value,+colour+=+name))+%2B+
++geom_line()+%2B
++facet_wrap(~id,+labeller+=+labeller(id+=+c(`1`+=+"first",+`2`+=+"second",+`3`+=+"third")))|code-block|syntax|javascript|1223942|​|1223943|?|atomic|1223944|1223945|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/992f7489accb418dc9e99c3ea08dc7da.jpeg|imageAlt^0|C|6|0|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|13|8|@]|D|@]|E|$]]|$1|M|3|N|5|O|7|14|8|@]|D|@$9|15|A|16|1|17]]|E|$]]|$1|P|3|L|5|6|7|18|8|@]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|19|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X|Y|-4]]]]

Maybe a bit easier, also using <code>ggplot</code>:

<pre><code>library(tidyverse)

df &lt;- bind_rows(a1,a2,a3, .id = "id") %&gt;% 
 gather(`b`, `c`, key = "values", value = "value")

 ggplot(df, aes(a, value, colour = name)) + 
 geom_line() +
 facet_wrap(~id, labeller = labeller(id = c(`1` = "first", `2` = "second", `3` = "third")))
</code></pre>

<a href="https://i.stack.imgur.com/DkKUj.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DkKUj.jpg" alt="enter image description here"></a>

blocks|key|1236951|text|您可以使用以下代码从@user213544修改为颜色b和c|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1236952|library(tidyverse)

a1<-data.frame(a=c(1,2,3),b=c(45,34,67),c=c(35,56,89))
a2<-data.frame(a=c(1,2,3),b=c(35,40,60),c=c(30,59,92))
a3<-data.frame(a=c(1,2,3),b=c(45,38,57),c=c(35,52,91))

df+<-+bind_rows(a1,a2,a3,+.id+=+"id")

df+%25>%25+pivot_longer(-c(a,id))+%25>%25+
++ggplot(aes(x+=+a,+y+=+value,+colour+=+name))+%2B+geom_line()%2B+
++facet_wrap(~id,+labeller+=+labeller(id+=+c(`1`+=+"a1",+`2`+=+"a2",+`3`+=+"a2")))%2B
++labs(title="Plot+title",x="a",+y+=+"b+&+c")|code-block|syntax|javascript|1236953|​|1236954|?|atomic|offset|length|1236955|1236956|更新|1236957|a1<-data.frame(a=c(1,2,3),b=c(45,34,67),c=c(35,56,89),d=c("first"))
a2<-data.frame(a=c(1,2,3),b=c(35,40,60),c=c(30,59,92),d=c("second"))
a3<-data.frame(a=c(1,2,3),b=c(45,38,57),c=c(35,52,91),d=c("third"))

df+<-+bind_rows(a1,a2,a3)

df+%25>%25+pivot_longer(-c(a,+d))+%25>%25+
++ggplot(aes(x+=+a,+y+=+value,+colour+=+name))+%2B+geom_line()%2B+
++facet_wrap(~d)%2B
++labs(title="Plot+title",x="a",+y+=+"b+&+c")|1236958|1236959|1236960|1236961|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/82f379b87fbfbe752f028283d9cd9d91.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/f8eba3a0bb61f587cf936bc04462baa8.png^0|0|0|0|0|1|0|0|0|0|0|0|0|1|1|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|18|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|19|8|@]|9|@$L|1A|M|1B|1|1C]]|A|$]]|$1|N|3|H|5|6|7|1D|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1E|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|1F|8|@]|9|@]|A|$E|F]]|$1|S|3|H|5|6|7|1G|8|@]|9|@]|A|$]]|$1|T|3|J|5|K|7|1H|8|@]|9|@$L|1I|M|1J|1|1K]]|A|$]]|$1|U|3|H|5|6|7|1L|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1M|8|@]|9|@]|A|$]]]|W|$X|$5|Y|Z|10|A|$11|12|13|-4]]|14|$5|Y|Z|10|A|$11|15|13|-4]]]]

You can use the following code modified from @user213544 to color b and c
<pre><code>library(tidyverse)

a1&lt;-data.frame(a=c(1,2,3),b=c(45,34,67),c=c(35,56,89))
a2&lt;-data.frame(a=c(1,2,3),b=c(35,40,60),c=c(30,59,92))
a3&lt;-data.frame(a=c(1,2,3),b=c(45,38,57),c=c(35,52,91))

df &lt;- bind_rows(a1,a2,a3, .id = &quot;id&quot;)

df %&gt;% pivot_longer(-c(a,id)) %&gt;% 
 ggplot(aes(x = a, y = value, colour = name)) + geom_line()+ 
 facet_wrap(~id, labeller = labeller(id = c(`1` = &quot;a1&quot;, `2` = &quot;a2&quot;, `3` = &quot;a2&quot;)))+
 labs(title=&quot;Plot title&quot;,x=&quot;a&quot;, y = &quot;b &amp; c&quot;)
</code></pre>
<a href="https://i.stack.imgur.com/MkRKG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MkRKG.png" alt="enter image description here" /></a>
<h1>Update</h1>
<pre><code>a1&lt;-data.frame(a=c(1,2,3),b=c(45,34,67),c=c(35,56,89),d=c(&quot;first&quot;))
a2&lt;-data.frame(a=c(1,2,3),b=c(35,40,60),c=c(30,59,92),d=c(&quot;second&quot;))
a3&lt;-data.frame(a=c(1,2,3),b=c(45,38,57),c=c(35,52,91),d=c(&quot;third&quot;))

df &lt;- bind_rows(a1,a2,a3)

df %&gt;% pivot_longer(-c(a, d)) %&gt;% 
 ggplot(aes(x = a, y = value, colour = name)) + geom_line()+ 
 facet_wrap(~d)+
 labs(title=&quot;Plot title&quot;,x=&quot;a&quot;, y = &quot;b &amp; c&quot;)
</code></pre>
<a href="https://i.stack.imgur.com/lIG9h.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lIG9h.png" alt="enter image description here" /></a>

Consider

<pre><code>a1&lt;-data.frame(a=c(1,2,3),b=c(45,34,67),c=c(35,56,89),d=c("first"))
a2&lt;-data.frame(a=c(1,2,3),b=c(35,40,60),c=c(30,59,92),d=c("second"))
a3&lt;-data.frame(a=c(1,2,3),b=c(45,38,57),c=c(35,52,91),d=c("third"))
</code></pre>

I want to use ggplot to make three charts/plots corresponding to a1, a2, and a3. Each chart/plot should have x=a, and y=b,c. So there should be two lines in each chart. The charts should be named first, second, and third. How do I do this?

I tried

<pre><code>overall&lt;-list(a1,a2,a3)
plots&lt;-lapply(overall,function(category){o&lt;-melt(category, id = "a", measure = c("b", "c"));
 ggplot(o, aes(a, value, colour = variable)) + geom_line()})
</code></pre>

but it produces only one plot. Ideally, I would like to see three plots with each plot containing two lines corresponding to b and c in data frames a1, a2, and a3.

multiple usage of ggplot

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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考虑一下a1<-data.frame(a=c(1,2,3),b=c(45,34,67),c=c(35,56,89),d=c("first"))a2<-data.frame(a=c(1,2,3),b=c(35,40,60),c=c(30,59,92),d=c("second"))a3<-data.frame(a=c(1,...

问ggplot的多次使用
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