[R] Adding regression line to each individual plot in a window with multiple plots

[Jim Lemon]

Hi Jake,
As I don't have your data set, try this:

attach(mtcars)
plot(mpg~disp,xaxs="i",yaxs="i")
abline(lm(mpg~disp))

Jim

On Wed, Jan 18, 2017 at 12:04 PM, Jake William Andrae
<jake.andrae at adelaide.edu.au> wrote:
> Hi Everyone,
>
>
>
> I've constructed a script that adds multiple plots to the plot window, but I'm having a bit of trouble adding a regression line to each individual plot. Of course, the regression lines will vary depending on the variables plotted against one another. I've attached the script.
>
>
> #Growing season
> #Construction of plots
> # 12 figures arranged in 3 rows and 4 columns
> attach(mtcars)
> par(mfrow=c(3,4), mar = c(.6,.5,.6,1), oma = c(15,4,2,2), xpd = NA)
> #Concentration
> plot(Growing_season_precipitation, Concentration, xaxs = "i", yaxs = "i", xlim = c(0, 700), ylim = c(0,500), xlab = NA, ylab = "Concentration", xaxt='n', pch=21,  bg='black', abline(lm(Growing_season_precipitation~Concentration)))
> plot(Growing_season_VPD, Concentration, xaxs = "i", yaxs = "i", xlim = c(0.6, 1.8), ylim = c(0,500), xlab = NA, ylab = "", xaxt='n', pch=21,  bg='black', yaxt='n')
> plot(Growing_season_Rhmax, Concentration, xaxs = "i", yaxs = "i", xlim = c(35, 60), ylim = c(0,500), xlab = NA, ylab = "", xaxt='n', pch=21,  bg='black', yaxt='n')
> plot(Growing_season_temperature, Concentration, xaxs = "i", yaxs = "i", xlim = c(20,34), ylim = c(0,500), xlab = NA, ylab = "", xaxt='n', pch=21,  bg='black', yaxt='n')
> #ACL
> plot(Growing_season_precipitation, ACLTotal, xaxs = "i", yaxs = "i", xlim = c(0, 700), ylim = c(28,32), xlab = "", ylab = "ACL", xaxt='n',  pch=21,  bg='black')
> plot(Growing_season_VPD, ACLTotal, xaxs = "i", yaxs = "i", xlim = c(0.6, 1.8), ylim = c(28,32), xlab = "", ylab = "", xaxt='n',  pch=21,  bg='black', yaxt='n')
> plot(Growing_season_Rhmax, ACLTotal, xaxs = "i", yaxs = "i", xlim = c(35, 60), ylim = c(28,32), xlab = "", ylab = "", xaxt='n',  pch=21,  bg='black', yaxt='n')
> plot(Growing_season_temperature, ACLTotal, xaxs = "i", yaxs = "i", xlim = c(20,34), ylim = c(28,32), xlab = "", ylab = "", xaxt='n',  pch=21,  bg='black', yaxt='n')
> #CPI
> plot(Growing_season_precipitation, CPITotal, xaxs = "i", yaxs = "i", xlim = c(0, 700), ylim = c(0,30), xlab = "Total precipitation (mm)", ylab = "CPI",  pch=21,  bg='black')
> plot(Growing_season_VPD, CPITotal, xaxs = "i", yaxs = "i", xlim = c(0.6, 1.8), ylim = c(0,30), xlab = "Average daily VPD (kpa)", ylab = "",  pch=21,  bg='black', yaxt='n')
> plot(Growing_season_Rhmax, CPITotal, xaxs = "i", yaxs = "i", xlim = c(35, 60), ylim = c(0,30), xlab = "Average daily RHmax (%)", ylab = "",  pch=21,  bg='black', yaxt='n')
> plot(Growing_season_temperature, CPITotal, xaxs = "i", yaxs = "i", xlim = c(20,34), ylim = c(0,30), xlab = "Average daily temperature (oC)", ylab = "",  pch=21,  bg='black', yaxt='n')
> #Plot main title
> title(main="Growing season (June-November, inclusive)",outer=T)
>
> Any help would be greatly appreciated!
>
>
>
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