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

[Paul Hammer]

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 :)