好的,所以我想在我的情节中添加回归线方程。 我发现this answer因某些原因对我不起作用。这就是我的数据:
>Plot_Data
Treatment value Substrate
1 Control 0.16666667 10.00000
2 Control 0.03333333 2.00000
3 Control 0.02380952 1.00000
4 Control 0.01388889 0.50000
5 Control 0.01250000 0.25000
6 Control 0.01219512 0.12500
7 Control 0.01176471 0.03125
8 +Inh P 0.50000000 10.00000
9 +Inh P 0.14285714 2.00000
10 +Inh P 0.10000000 1.00000
11 +Inh P 0.08333333 0.50000
12 +Inh P 0.07142857 0.25000
13 +Inh P 0.06666667 0.12500
14 +Inh P 0.06250000 0.03125
15 +Inh Q 0.43103448 10.00000
16 +Inh Q 0.08403361 2.00000
17 +Inh Q 0.05494505 1.00000
18 +Inh Q 0.02610966 0.50000
19 +Inh Q 0.02000000 0.25000
20 +Inh Q 0.01470588 0.12500
21 +Inh Q 0.01265823 0.03125
我使用了awnsere中建议的功能稍加修改的版本(我添加了y和x作为输入):
lm_eqn <- function(y,x,df){
m <- lm(y ~ x, df);
eq <- substitute(italic(y) == a + b %.% italic(x)*","~~italic(r)^2~"="~r2,
list(a = format(coef(m)[1], digits = 2),
b = format(coef(m)[2], digits = 2),
r2 = format(summary(m)$r.squared, digits = 3)))
as.character(as.expression(eq));
}
然后我用:
绘制我的图表Plot <- ggplot(Plot_Data,aes(x=Substrate,y=value,group=Treatment,color=Treatment))+
geom_point(shape=1)+
geom_smooth(method = lm,fullrange =T,se=F,size=0.75)+
xlab(expression("[S]"^-1))+
ylab(expression("V"[0]^-1))+
xlim(c(-1.5,10))+
ggtitle("Adenylate Kinase rate graph")+
theme(axis.title = element_text(size=12),
plot.title = element_text(hjust = 0.5))+
geom_text(x=5,y=0.5,
label = lm_eqn(Data.Inverse$Substrate,Data.Inverse$X.Inh.P,Data.Inverse),color = "red")
但是我将以下输出作为一串文本而不做任何修改:
任何想法为什么?似乎表达功能不能正常工作,但我不明白为什么。
Data.Inverse
是数据框Plot_Data
被melt
编辑(也使用rep
和mutate
添加了Substrate),它看起来像:
Substrate Control X.Inh.P X.Inh.Q
1 10.00000 0.16666667 0.50000000 0.43103448
2 2.00000 0.03333333 0.14285714 0.08403361
3 1.00000 0.02380952 0.10000000 0.05494505
4 0.50000 0.01388889 0.08333333 0.02610966
5 0.25000 0.01250000 0.07142857 0.02000000
6 0.12500 0.01219512 0.06666667 0.01470588
7 0.03125 0.01176471 0.06250000 0.01265823
答案 0 :(得分:2)
根据the documentation,$args = array(
'post_type' => 'product',
'meta_key' => '_featured',
'meta_value' => 'yes',
'posts_per_page' => 1
);
$featured_query = new WP_Query( $args );
if ($featured_query->have_posts()) :
while ($featured_query->have_posts()) :
$featured_query->the_post();
$product = get_product( $featured_query->post->ID );
// Output product information here
endwhile;
endif;
wp_reset_query(); // Remember to reset
parse
参数是必需的,因此“标签将被解析为表达式并按照plotmath中的描述显示”。你已经省略了它,这应该是正确的调用:
geom_text()