如何繪製PDF文件中的相關性？

Question

我想檢查兩欄數據之間的相關性並將它們繪製到pdf文件中。有人能告訴我該怎麼做嗎？

diff abund_mean 
0 3444804.79 
1 847887.02 
2 93654.19 
0 721692.76 
2 382711.04 
1 428656.65 
1 120933.91 
0 157528.72 
1 159650.70 
0 124602.80 
0 90844.33 
2 501825.37 
1 270592.56 

Answer 1

您是否還需要該圖或只是相關係數？ 這使你與R^2散點圖：

pdf(file="myplot.pdf", width = 10, height =13) #create new pdf 
plot(diff ~ abund_mean) #see data 
abline(lm<- lm(diff ~ abund_mean)) #add regression to plot 
legend("topright", bty="n", legend=paste 
("R2 is", format(summary(lm)$adj.r.squared, digits=4))) #print the regr. coeff. on plot 
dev.off() #end of pdf creation 
summary(lm) #see all the regression coefficients (F-statistic, RSE, etc.)