[R] plot two columns of a matrix with standard deviation

[Henrique Dallazuanna]

Try this:

plot(x[,1], ylim=range(x[c(1,3)]), xaxt="n", xlab="", pch=16, col="blue")
points(x[,3], pch=16, col="red")
axis(1, at=1:nrow(x), labels=rownames(x), las=2)
segments(1:nrow(x), x[,1]-x[,2], 1:nrow(x), x[,1]+x[,2], col="blue")
segments(1:nrow(x), x[,3]-x[,4], 1:nrow(x), x[,3]+x[,4], col="red")



On 21/02/2008, Paul Hammer <paul.hammer at tfh-wildau.de> wrote:
>
>  Henrique Dallazuanna schrieb:
>  Perhaps:
>
> plot(x[c(1,3)], pch=16)
> segments(x[,1],x[,3]-x[,2], x[,1], x[,3]+x[,4], col="red")
>
>
> On 21/02/2008, Paul Hammer <paul.hammer at tfh-wildau.de> wrote:
>
>
>  hi members,
>
>  i try to plot two columns of a matrix as points with standard deviation.
>  a legend should also be there. the one points should be green and the
>  others red...
>
>  column 1 and 3 are the values to plot and column 2 and 4 are the
>  attendant standard deviation (sd)... as xlab should show the rownames. i
>  tried a lot of attempts but without success:(...
>
>  R code:
>  > PDE1A_int_sd_avg[1:4]
>
>  prostate_avg prostate_sd breast_avg breast_sd
>  2590617 7.057866 0.65549017 6.922251 0.1240702
>  2590616 4.407165 0.51983406 4.127747 0.4471652
>  2590615 4.806831 0.58847360 4.309884 0.1884463
>  2590618 3.314213 1.02590469 3.310029 0.6075215
>  2590612 7.878071 0.34838454 6.961996 0.4294136
>  2590613 7.148809 0.63653777 6.013015 0.6484706
>  2590611 5.382736 0.51058425 4.669508 0.5124079
>  2590607 4.448152 1.54271678 3.377348 0.6634425
>  2590608 4.184283 0.44209393 2.767696 0.3458292
>  2590606 6.237610 0.15831587 4.900560 0.3556708
>  2590601 2.871831 0.13629742 2.427491 0.7291913
>  2590600 2.777127 1.50248150 3.181344 0.2703518
>  2590599 3.854438 0.12178512 3.560036 0.4389107
>  2590628 4.065403 0.67835058 3.468860 0.8218848
>  2590619 1.623058 0.07643176 1.946055 0.5335189
>  2590586 1.102444 0.42467133 1.214922 0.5288023
>  2590591 3.842315 0.42584177 2.792450 0.2539151
>  2590645 4.882622 0.75542588 5.073177 0.2141262
>
>  help would be great...
>
>  thanks
>  paul
>
>  @ jim thanks for the hint assign :)
>
>  ______________________________________________
>  R-help at r-project.org mailing list
>  https://stat.ethz.ch/mailman/listinfo/r-help
>  PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
>  and provide commented, minimal, self-contained, reproducible code.
>
>
>
>
>  thanks for first but it works not really right. y axis should be the values
> for columns and the x axis just the rowname (2590617, 2590616 etc). it
> belongs always two point together (one for column prostate and one for
> column breast). they should be positioned above. additional the standard
> devation should be shown for every point...
>
>  for a better understanding see attached file...
>
>  thanks
>  paul
>
>


-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O