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 <[EMAIL PROTECTED]> 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 :)

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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
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