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Adding Axis value to R Plot

4 messages · AbouEl-Makarim Aboueissa, Bert Gunter, Jim Lemon

#
Dear All: good morning



within this code, please see below,


plot(0:1.0, 0:1.0, type = "n",  yaxs = "i", xaxs = "i", xaxt = "n", yaxt =
"n", xlab = "Age", ylab = "Distance (ft)",  cex.lab=1.5)
grid(nx = 10, ny = 10, col = "lightgray", lty = "dotted", lwd = 2)



Is there a way to force R to add the following Axis ticks to this plot


xticks <- c(15,25,35,45,55,65,75,85)
yticks <- c(300,400,500,600)



with many thanks
abou
______________________


*AbouEl-Makarim Aboueissa, PhD*

*Professor of Statistics*

*Department of Mathematics and Statistics*
*University of Southern Maine*
#
See ?plot.default, where it says:

axes

a logical value indicating whether both axes should be drawn on the plot.
Use graphical parameter
<http://127.0.0.1:29349/help/library/graphics/help/graphical%20parameter>
"xaxt" or "yaxt" to suppress just one of the axes.
 and use the "at" argument of ?axis to draw the axis and add ticks where
you like.

Cheers,
Bert




Bert Gunter

"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )

On Mon, Jun 25, 2018 at 7:36 AM, AbouEl-Makarim Aboueissa <
abouelmakarim1962 at gmail.com> wrote:

            

  
  
#
Hi Abou,
You can't display an axis if it is not in the range of the plot. I
think you want:

plot(0,type="n",yaxs="i",xaxs="i",xaxt="n",yaxt="n",xlim=c(15,85),
 ylim=c(300,600),xlab="Age",ylab="Distance (ft)",cex.lab=1.5)
grid(nx = 10, ny = 10, col = "lightgray", lty = "dotted", lwd = 2)
xticks <- c(15,25,35,45,55,65,75,85)
yticks <- c(300,400,500,600)
axis(1,at=xticks)
axis(2,at=yticks)

Note the addition of xlim and ylim arguments.

Jim

On Tue, Jun 26, 2018 at 12:36 AM, AbouEl-Makarim Aboueissa
<abouelmakarim1962 at gmail.com> wrote:
#
Dear Jim:

many thanks

abou

______________________


*AbouEl-Makarim Aboueissa, PhD*

*Professor of Statistics*

*Department of Mathematics and Statistics*
*University of Southern Maine*
On Mon, Jun 25, 2018 at 7:25 PM, Jim Lemon <drjimlemon at gmail.com> wrote: