防止R在＆＃34;表达内部进行舍入＆＃34;功能

Question

我需要在情节中准确显示98.0，但R很遗憾只显示98 + - 2.3欧米茄

  text(0.03,8,  expression(Rx ==    98.0   +-  2.3* phantom(x)*Omega), cex = 1.5, col = "red")

谢谢

Answer 1

plot( x = 1:10, y = 1:10 )
text(4,8,
     expression( Rx == '98.0'   %+-%  2.3 *phantom(x)* Omega ),
     cex = 1.5, col = "red")