longer way to do a plot with more than one y value using the par function. by ephrage tapiwa rugara (ankara üniversitesi) > plot(x=coal$Year,y=coal$Value,type="l",col="blue",xlab="Year",ylab="Consumption",ylim =c(0,30) ) > par(new=TRUE) > plot(natgas$Year,natgas$Value,type="l",col="red",xlab = "Year",ylab = "Consumption",ylim= c(0,30)) > par(new=TRUE) > plot(nucl$Year,nucl$Value,type="l",col="green",xlab = "Year",ylab = "Consumption",ylim=c(0,30)) > par(new=TRUE) > plot(renew$Year,renew$Value,type="l",col="orange",xlab = "Year",ylab = "Consumption",ylim=c(0,30))