逆関数のグラフ
の逆関数は
y <- function(x){ x } y1 <- function(x){ 2*x-2 } y2 <- function(x){ (x+2)/2 } plot(y,xlim = c(-2,4),ylim=c(-2,4),col=2,ann=FALSE, axes=FALSE) #ann軸ラベル axes軸 par(new=T) plot(y1,xlim = c(-2,4),ylim=c(-2,4),ann=FALSE, axes=FALSE) par(new=T) plot(y2,xlim = c(-2,4),ylim=c(-2,4),ann=FALSE, axes=FALSE) axis(1, pos = 0, at = -2:4) #軸挿入 axis(2, pos = 0, at = -2:4)
の逆関数は
y <- function(x){ x } y1 <- function(x){ 10^x } y2 <- function(x){ log10(x) } plot(y,xlim = c(-2,4),ylim=c(-2,4),col=2,ann=FALSE, axes=FALSE) #ann軸ラベル axes軸 par(new=T) plot(y1,xlim = c(-2,4),ylim=c(-2,4),ann=FALSE, axes=FALSE) par(new=T) plot(y2,xlim = c(-2,4),ylim=c(-2,4),ann=FALSE, axes=FALSE) axis(1, pos = 0, at = -2:4) #軸挿入 axis(2, pos = 0, at = -2:4)