Hi, It is not very clear. May be this gets you started: set.seed(42) lst1 <- lapply(1:5, function(i) lapply(1:50,function(i) rnorm(sample(50,1)))) lst2 <- lapply(lst1,function(x) data.frame(X= rep(seq_along(x),sapply(x,length)),Y=unlist(x))) pdf("test2.pdf") ?lapply(lst2,function(x) with(x,plot(Y~X))) dev.off() A.K. I have a list if lists in R (part of which is shown below). I wish to plot these lists on the same graph where each list corresponds to a single x coordinate. For example for the 45th list all the values would be plotted on the line x=45. Anyone able to help? [[45]] ?[1] -0.110067765 -0.040016980 -0.024073054 -0.221518631 ?0.158046458 ?[6] -0.110134750 ?0.004824416 ?0.067080351 -0.052912475 ?0.034445239 [11] ?0.017093804 ?0.014526023 ?0.123733756 -0.076593627 -0.049173945 [16] -0.044804543 ?0.089349788 -0.061330124 -0.108191264 ?0.210778889 [21] ?0.057898773 -0.000392106 -0.020911704 ?0.084198206 -0.064250534 [26] -0.041634491 -0.142851316 -0.116919985 ?0.115766019 ?0.082258703 [31] ?0.048376129 -0.036986678 -0.002247251 ?0.202808035 ?0.178324911 [36] ?0.027862391 -0.092909969 -0.158287227 ?0.048137063 ?0.142961443 [41] ?0.024102742 -0.034740816 ?0.095980313 ?0.234679333 ?0.062757475 [46] -0.083656499 -0.026666635 -0.049571943 -0.003269980 ?0.012924383 [[46]] ?[1] ?0.112291702 ?0.455557078 -0.188595792 ?0.023815125 ?0.047757787 ?[6] -0.108520094 ?0.119083003 ?0.065705185 ?0.224999137 ?0.076742666 [11] ?0.247330698 ?0.096306189 -0.222250082 -0.004899562 -0.026481377 [16] -0.171317015 ?0.183442656 -0.026224042 ?0.017024487 ?0.180420266 [21] ?0.108220342 -0.002034567 -0.059184763 ?0.024854329 -0.267982999 [26] -0.181058542 ?0.271709202 ?0.078113700 ?0.145173899 -0.259035363 [31] -0.033086712 -0.136858819 -0.232087471 -0.014715389 ?0.105185758 [36] -0.119881528 ?0.098842549 ?0.060748033 -0.306107128 ?0.022539607 [41] -0.093208642 ?0.140678025 ?0.095285130 ?0.140788810 -0.274918531 [46] ?0.080010582 -0.070639892 ?0.100321500 ?0.047547311 ?0.107104289 [[47]] ?[1] ?0.137215639 -0.074820424 -0.082442176 ?0.250054175 ?0.185168148 ?[6] -0.146350321 -0.135327713 -0.184682332 ?0.143446849 ?0.047635866 [11] -0.073068031 -0.002690403 -0.162714729 -0.151941475 -0.122147610 [16] -0.041184742 ?0.098393496 -0.000948722 -0.164136918 ?0.086485859 [21] -0.101381633 ?0.017928356 ?0.086042233 ?0.167799050 -0.066286935 [26] ?0.153897947 ?0.046226772 -0.042488379 ?0.157126544 -0.026546025 [31] -0.098447831 ?0.248466421 -0.240674997 -0.067275509 ?0.219154426 [36] ?0.261614097 -0.085938742 ?0.169890170 ?0.038687110 ?0.273939911 [41] -0.207415094 -0.242613302 -0.070860536 -0.108869865 ?0.002090580