This probably is not ideal, but this works on a list of mine...... ## so you can see the structure of my list > str(srMT) List of 4 $ mode : chr "discrete" $ ks.stat : chr "mean" $ observed :List of 4 ..$ filter: num [1:13, 1:4] 0.213 0.207 0.144 0.311 0.24 ... .. ..- attr(*, "dimnames")=List of 2 .. .. ..$ ID_2: chr [1:13] "BC_SP1" "BU1_SP1" "BU2_SP1" "MK_SP1" ... .. .. ..$ : chr [1:4] "vel1" "vel2" "vel3" "vel4" ..$ chi2 : num [1:3] 6.93e+02 6.93e+02 1.93e-12 ..$ df : num [1:3] 36 39 3 ..$ p : num [1:3] 0 0 1 $ bootstrap:List of 6 ..$ filter : num [1:13, 1:4, 1:1000] 0.245 0.254 0.247 0.244 0.25 ... ##### LIST just keeps going and going and going
# as an example > (srMT[[3]][1]) $filter ID_2 vel1 vel2 vel3 vel4 BC_SP1 0.2127431 0.1923574 0.2839013 0.3109983 BU1_SP1 0.2072090 0.3094771 0.2219164 0.2613975 BU2_SP1 0.1437481 0.3270975 0.2401788 0.2889757 MK_SP1 0.3114887 0.2503257 0.2177326 0.2204530 MO_SP1 0.2395539 0.2079802 0.3208321 0.2316338 MU1_SP1 0.2336137 0.1923791 0.2386081 0.3353991 MU2_SP1 0.3607257 0.2466847 0.1501613 0.2424284 MU3_SP1 0.3583597 0.2499569 0.1652739 0.2264095 RB_SP1 0.2912842 0.2742916 0.1768310 0.2575933 SB1_SP1 0.2108506 0.2075117 0.3399161 0.2417215 SB2_SP1 0.2910056 0.2306834 0.2507012 0.2276098 SB4_SP1 0.2958040 0.2358855 0.2433465 0.2249641 SC_SP1 0.2509970 0.2129797 0.3071544 0.2288689 ## some rownames b <- c("MK_SP1", "SB1_SP1", "SB4_SP1") ## this works to pull them out based on row names > data.frame((srMT[[3]][1]))[b,] filter.vel1 filter.vel2 filter.vel3 filter.vel4 MK_SP1 0.3114887 0.2503257 0.2177326 0.2204530 SB1_SP1 0.2108506 0.2075117 0.3399161 0.2417215 SB4_SP1 0.2958040 0.2358855 0.2433465 0.2249641 I hope this helps, good luck! Alfredo Alessandrini wrote: > > Hi, > > I've a list of list. > > I want to extract an element by the rownames. > > I can extract it by: > > data[[1]][[1]][[4]][1] > > > But I want to exctract it by a command like this: > > data[[1]][["B0"]][["smac"]][["cont"]][1] > > It's possible? > > > Thanks, > > Alfredo > > > > >> str(data) > List of 1 > $ :List of 4 > ..$ :List of 4 > .. ..$ : num [1, 1:3] 0.4 0.458 0.5 > .. ..$ : num [1:41, 1] 0.4 0.403 0.405 0.407 0.41 ... > .. ..$ : num [1:41, 1] 0.000128 0.000328 0.000528 0.000728 0.000992 ... > .. ..$ :List of 1 > .. .. ..$ : num [1:49, 1] 0 0 -0.00626 0.99832 0 ... > .. .. ..- attr(*, "dim")= int [1:3] 1 1 1 > .. .. ..- attr(*, "dimnames")=List of 3 > .. .. .. ..$ : chr "cont" > .. .. .. ..$ : NULL > .. .. .. ..$ : NULL > .. ..- attr(*, "dim")= int [1:3] 4 1 1 > .. ..- attr(*, "dimnames")=List of 3 > .. .. ..$ : chr [1:4] "begin.mode.end" "lambda" "sensi" "smac" > .. .. ..$ : NULL > .. .. ..$ : NULL > ..$ :List of 4 > .. ..$ : num [1, 1:3] 0.58 0.67 0.782 > .. ..$ : num [1:82, 1] 0.58 0.583 0.585 0.588 0.59 ... > .. ..$ : num [1:82, 1] 0.0017 0.00168 0.00165 0.00162 0.0016 ... > .. ..$ :List of 1 > .. .. ..$ : num [1:49, 1] -0.00597 0.71045 -0.05844 0.99187 -0.00807 ... > .. .. ..- attr(*, "dim")= int [1:3] 1 1 1 > .. .. ..- attr(*, "dimnames")=List of 3 > .. .. .. ..$ : chr "cont" > .. .. .. ..$ : NULL > .. .. .. ..$ : NULL > .. ..- attr(*, "dim")= int [1:3] 4 1 1 > .. ..- attr(*, "dimnames")=List of 3 > .. .. ..$ : chr [1:4] "begin.mode.end" "lambda" "sensi" "smac" > .. .. ..$ : NULL > .. .. ..$ : NULL > ..$ :List of 4 > .. ..$ : num [1, 1:3] 0.7 0.82 1.03 > .. ..$ : num [1:133, 1] 0.7 0.703 0.705 0.708 0.71 ... > .. ..$ : num [1:133, 1] 0.0007 0.000775 0.00085 0.000925 0.001 ... > .. ..$ :List of 1 > .. .. ..$ : num [1:49, 1] -0.030584 0.559164 -0.000269 0.995624 > -0.006616 ... > .. .. ..- attr(*, "dim")= int [1:3] 1 1 1 > .. .. ..- attr(*, "dimnames")=List of 3 > .. .. .. ..$ : chr "cont" > .. .. .. ..$ : NULL > .. .. .. ..$ : NULL > .. ..- attr(*, "dim")= int [1:3] 4 1 1 > .. ..- attr(*, "dimnames")=List of 3 > .. .. ..$ : chr [1:4] "begin.mode.end" "lambda" "sensi" "smac" > .. .. ..$ : NULL > .. .. ..$ : NULL > ..$ :List of 4 > .. ..$ : num [1, 1:3] 1.45 1.64 1.8 > .. ..$ : num [1:141, 1] 1.45 1.45 1.46 1.46 1.46 ... > .. ..$ : num [1:141, 1] 0.001 0.001 0.001 0.001 0.001 ... > .. ..$ :List of 1 > .. .. ..$ : num [1:49, 1] -0.00547 0.65798 0 0 0 ... > .. .. ..- attr(*, "dim")= int [1:3] 1 1 1 > .. .. ..- attr(*, "dimnames")=List of 3 > .. .. .. ..$ : chr "cont" > .. .. .. ..$ : NULL > .. .. .. ..$ : NULL > .. ..- attr(*, "dim")= int [1:3] 4 1 1 > .. ..- attr(*, "dimnames")=List of 3 > .. .. ..$ : chr [1:4] "begin.mode.end" "lambda" "sensi" "smac" > .. .. ..$ : NULL > .. .. ..$ : NULL > ..- attr(*, "dim")= int [1:3] 4 1 1 > ..- attr(*, "dimnames")=List of 3 > .. ..$ : chr [1:4] "B0" "B2" "B3" "MIR" > .. ..$ : NULL > .. ..$ : NULL >> > > ______________________________________________ > R-help@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. > -- View this message in context: http://r.789695.n4.nabble.com/extract-element-from-list-by-rownames-tp3444730p3444892.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@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.