我正在尝试将两个数据集放在一起，但似乎遇到了问题。
这是我的第一个数据集：
head(merged_assays)
# A tibble: 6 × 13
squirrel_id grid sex ageclass age cohort year trialnumber trialdate assay.local.density assay_avg_fam OFT1 OFT2
<dbl> <chr> <chr> <chr> <dbl> <int> <dbl> <chr> <date> <dbl> <dbl> <dbl> <dbl>
7110 AG F A 2 2003 2005 1 2005-05-16 0 0 -0.595 -0.0859
6748 AG F Y 1 2004 2005 1 2005-05-17 0.942 0 -0.228 -0.0403
7545 AG F A 3 2002 2005 1 2005-05-17 0.942 146 -0.366 -0.272
7841 AG F A 2 2003 2005 1 2005-05-17 1.13 228. -1.38 0.252
6348 SU F A 5 2000 2005 1 2005-05-18 0 0 1.61 0.0803
7553 SU F A 3 2002 2005 1 2005-05-18 0.753 0 0.206 0.442
第二个数据集：
head(merged_axys)
# A tibble: 6 × 13
squirrel_id grid sex axy_ageclass axy_age byear axy_yr axy_id axy_date axy.local.density axy_avg_fam PC1 PC2
<dbl> <chr> <chr> <chr> <dbl> <int> <dbl> <chr> <date> <dbl> <dbl> <dbl> <dbl>
19553 JO F A 3 2013 2016 19553-2016-03-14-dawn 2016-03-14 2.83 421. -1.51 0.148
19553 JO F A 3 2013 2016 19553-2016-03-14-day 2016-03-14 2.83 421. 1.16 0.00814
19553 JO F A 3 2013 2016 19553-2016-03-14-dusk 2016-03-14 2.83 421. -1.55 0.0961
19553 JO F A 3 2013 2016 19553-2016-03-14-night 2016-03-14 2.83 421. -1.41 0.282
19553 JO F A 3 2013 2016 19553-2016-03-15-dawn 2016-03-15 2.83 421. -0.541 1.41
19553 JO F A 3 2013 2016 19553-2016-03-15-day 2016-03-15 2.83 421. 1.07 0.107
然后我执行以下操作：
L <- lapply(list(merged_assays, merged_axys), reshape2::melt, id.vars = 1:11)
DT <- data.table::rbindlist(L, use.names = FALSE, fill = FALSE)
merged<-data.table::dcast(DT, ... ~ variable, value.var = "value")
但是，我得到这个输出：
merged
squirrel_id grid sex ageclass age cohort year trialnumber trialdate assay.local.density assay_avg_fam OFT1 OFT2
1: NA <NA> <NA> <NA> NA NA 2022 NA-2022-06-14-dawn 2022-06-14 NA NA NA NA
2: NA <NA> <NA> <NA> NA NA 2022 NA-2022-06-14-day 2022-06-14 NA NA NA NA
3: NA <NA> <NA> <NA> NA NA 2022 NA-2022-06-14-dusk 2022-06-14 NA NA NA NA
4: NA <NA> <NA> <NA> NA NA 2022 NA-2022-06-14-night 2022-06-14 NA NA NA NA
5: NA <NA> <NA> <NA> NA NA 2022 NA-2022-06-15-dawn 2022-06-15 NA NA NA NA
---
38848: 25881 KL F Y 1 2022 2023 1 2023-05-18 0 0 -2.3801853 2.6514424
38849: 25970 KL F Y 1 2022 2023 1 2023-05-20 0 0 2.5803171 1.7898205
38850: 26010 JO F Y 1 2022 2023 1 2023-05-23 0 0 0.4207975 0.2827015
38851: 26017 KL F Y 1 2022 2023 1 2023-05-18 0 0 -0.7111936 -0.1329425
38852: 100071 KL F J 0 2023 2023 1 2023-05-18 0 0 -2.2823039 2.6170468
PC1 PC2
1: -1.503872 0.15660897
2: 1.244080 -0.09492022
3: -1.455461 0.21956184
4: -1.527755 0.12555208
5: -1.478833 0.18916969
---
38848: NA NA
38849: NA NA
38850: NA NA
38851: NA NA
38852: NA NA
所需输出：
squirrel_id grid sex ageclass age cohort year trialnumber trialdate assay.local.density assay_avg_fam OFT1 OFT2 PC1 PC2
7110 AG F A 2 2003 2005 1 2005-05-16 0 0 -0.595 -0.0859 NA NA
6748 AG F Y 1 2004 2005 1 2005-05-17 0.942 0 -0.228 -0.0403 NA NA
7545 AG F A 3 2002 2005 1 2005-05-17 0.942 146 -0.366 -0.272 NA NA
7841 AG F A 2 2003 2005 1 2005-05-17 1.13 228. -1.38 0.252 NA NA
6348 SU F A 5 2000 2005 1 2005-05-18 0 0 1.61 0.0803 NA NA
7553 SU F A 3 2002 2005 1 2005-05-18 0.753 0 0.206 0.442 NA NA
19553 JO F A 3 2013 2016 19553-2016-03-14-dawn 2016-03-14 2.83 421. NA NA -1.51 0.148
19553 JO F A 3 2013 2016 19553-2016-03-14-day 2016-03-14 2.83 421. NA NA 1.16 0.00814
19553 JO F A 3 2013 2016 19553-2016-03-14-dusk 2016-03-14 2.83 421. NA NA -1.55 0.0961
19553 JO F A 3 2013 2016 19553-2016-03-14-night 2016-03-14 2.83 421. NA NA -1.41 0.282
19553 JO F A 3 2013 2016 19553-2016-03-15-dawn 2016-03-15 2.83 421. NA NA -0.541 1.41
19553 JO F A 3 2013 2016 19553-2016-03-15-day 2016-03-15 2.83 421. NA NA 1.07 0.107
有谁知道当我将这两个数据集放在一起时我做错了什么？我很感激任何建议 - 包括与我一直在处理的代码格式不同的解决方案。
首先，我假设您不关心列名称的差异。虽然有些看起来无害（
ageclassaxy_ageclasstrialnumberaxy_id假设您知道这些很好，我们需要更改名称才能完成您想要的操作。
第一次尝试采用您建议的melt-rbind-dcast 方法。为此，我们需要not使用
rbindlistL <- lapply(list(merged_assays, merged_axys), reshape2::melt, id.vars = 1:11)
names(L[[2]]) <- names(L[[1]])
as.data.table(do.call(rbind, L)) |>
data.table::dcast(... ~ variable, value.var="value")
# Key: <squirrel_id, grid, sex, ageclass, age, cohort, year, trialnumber, trialdate, assay.local.density, assay_avg_fam>
# # squirrel_id grid sex ageclass age cohort year trialnumber trialdate assay.local.density assay_avg_fam OFT1 OFT2 PC1 PC2
# # <int> <char> <char> <char> <int> <int> <int> <char> <char> <num> <num> <num> <num> <num> <num>
# # 1: 6348 SU F A 5 2000 2005 1 2005-05-18 0.000 0 1.610 0.0803 NA NA
# # 2: 6748 AG F Y 1 2004 2005 1 2005-05-17 0.942 0 -0.228 -0.0403 NA NA
# # 3: 7110 AG F A 2 2003 2005 1 2005-05-16 0.000 0 -0.595 -0.0859 NA NA
# # 4: 7545 AG F A 3 2002 2005 1 2005-05-17 0.942 146 -0.366 -0.2720 NA NA
# # 5: 7553 SU F A 3 2002 2005 1 2005-05-18 0.753 0 0.206 0.4420 NA NA
# # 6: 7841 AG F A 2 2003 2005 1 2005-05-17 1.130 228 -1.380 0.2520 NA NA
# # 7: 19553 JO F A 3 2013 2016 19553-2016-03-14-dawn 2016-03-14 2.830 421 NA NA -1.510 0.14800
# # 8: 19553 JO F A 3 2013 2016 19553-2016-03-14-day 2016-03-14 2.830 421 NA NA 1.160 0.00814
# # 9: 19553 JO F A 3 2013 2016 19553-2016-03-14-dusk 2016-03-14 2.830 421 NA NA -1.550 0.09610
# # 10: 19553 JO F A 3 2013 2016 19553-2016-03-14-night 2016-03-14 2.830 421 NA NA -1.410 0.28200
# # 11: 19553 JO F A 3 2013 2016 19553-2016-03-15-dawn 2016-03-15 2.830 421 NA NA -0.541 1.41000
# # 12: 19553 JO F A 3 2013 2016 19553-2016-03-15-day 2016-03-15 2.830 421 NA NA 1.070 0.10700
第二次尝试在融化之前更改名称，
names(merged_axys)[1:11] <- names(merged_assays)[1:11]
L <- lapply(list(merged_assays, merged_axys), reshape2::melt, id.vars = 1:11)
data.table::rbindlist(L, use.names = FALSE, fill = FALSE) |>
dcast(... ~ variable, value.name = "value")
# Key: <squirrel_id, grid, sex, ageclass, age, cohort, year, trialnumber, trialdate, assay.local.density, assay_avg_fam>
# squirrel_id grid sex ageclass age cohort year trialnumber trialdate assay.local.density assay_avg_fam OFT1 OFT2 PC1 PC2
# <int> <char> <char> <char> <int> <int> <int> <char> <char> <num> <num> <num> <num> <num> <num>
# 1: 6348 SU F A 5 2000 2005 1 2005-05-18 0.000 0 1.610 0.0803 NA NA
# 2: 6748 AG F Y 1 2004 2005 1 2005-05-17 0.942 0 -0.228 -0.0403 NA NA
# 3: 7110 AG F A 2 2003 2005 1 2005-05-16 0.000 0 -0.595 -0.0859 NA NA
# 4: 7545 AG F A 3 2002 2005 1 2005-05-17 0.942 146 -0.366 -0.2720 NA NA
# 5: 7553 SU F A 3 2002 2005 1 2005-05-18 0.753 0 0.206 0.4420 NA NA
# 6: 7841 AG F A 2 2003 2005 1 2005-05-17 1.130 228 -1.380 0.2520 NA NA
# 7: 19553 JO F A 3 2013 2016 19553-2016-03-14-dawn 2016-03-14 2.830 421 NA NA -1.510 0.14800
# 8: 19553 JO F A 3 2013 2016 19553-2016-03-14-day 2016-03-14 2.830 421 NA NA 1.160 0.00814
# 9: 19553 JO F A 3 2013 2016 19553-2016-03-14-dusk 2016-03-14 2.830 421 NA NA -1.550 0.09610
# 10: 19553 JO F A 3 2013 2016 19553-2016-03-14-night 2016-03-14 2.830 421 NA NA -1.410 0.28200
# 11: 19553 JO F A 3 2013 2016 19553-2016-03-15-dawn 2016-03-15 2.830 421 NA NA -0.541 1.41000
# 12: 19553 JO F A 3 2013 2016 19553-2016-03-15-day 2016-03-15 2.830 421 NA NA 1.070 0.10700
第三次尝试跳过了熔化，只是重新绑定了它们，因为我认为这并不是真正必要的（我可能是错的）。尽管如此，这仍会再次重命名第二帧的前 11 列。
# from original frames
names(merged_axys)[1:11] <- names(merged_assays)[1:11]
rbindlist(list(merged_assays, merged_axys), fill = TRUE, use.names = TRUE)
# squirrel_id grid sex ageclass age cohort year trialnumber trialdate assay.local.density assay_avg_fam OFT1 OFT2 PC1 PC2
# <int> <char> <char> <char> <int> <int> <int> <char> <char> <num> <num> <num> <num> <num> <num>
# 1: 7110 AG F A 2 2003 2005 1 2005-05-16 0.000 0 -0.595 -0.0859 NA NA
# 2: 6748 AG F Y 1 2004 2005 1 2005-05-17 0.942 0 -0.228 -0.0403 NA NA
# 3: 7545 AG F A 3 2002 2005 1 2005-05-17 0.942 146 -0.366 -0.2720 NA NA
# 4: 7841 AG F A 2 2003 2005 1 2005-05-17 1.130 228 -1.380 0.2520 NA NA
# 5: 6348 SU F A 5 2000 2005 1 2005-05-18 0.000 0 1.610 0.0803 NA NA
# 6: 7553 SU F A 3 2002 2005 1 2005-05-18 0.753 0 0.206 0.4420 NA NA
# 7: 19553 JO F A 3 2013 2016 19553-2016-03-14-dawn 2016-03-14 2.830 421 NA NA -1.510 0.14800
# 8: 19553 JO F A 3 2013 2016 19553-2016-03-14-day 2016-03-14 2.830 421 NA NA 1.160 0.00814
# 9: 19553 JO F A 3 2013 2016 19553-2016-03-14-dusk 2016-03-14 2.830 421 NA NA -1.550 0.09610
# 10: 19553 JO F A 3 2013 2016 19553-2016-03-14-night 2016-03-14 2.830 421 NA NA -1.410 0.28200
# 11: 19553 JO F A 3 2013 2016 19553-2016-03-15-dawn 2016-03-15 2.830 421 NA NA -0.541 1.41000
# 12: 19553 JO F A 3 2013 2016 19553-2016-03-15-day 2016-03-15 2.830 421 NA NA 1.070 0.10700
merged_assays <- structure(list(squirrel_id = c(7110L, 6748L, 7545L, 7841L, 6348L, 7553L), grid = c("AG", "AG", "AG", "AG", "SU", "SU"), sex = c("F", "F", "F", "F", "F", "F"), ageclass = c("A", "Y", "A", "A", "A", "A"), age = c(2L, 1L, 3L, 2L, 5L, 3L), cohort = c(2003L, 2004L, 2002L, 2003L, 2000L, 2002L), year = c(2005L, 2005L, 2005L, 2005L, 2005L, 2005L), trialnumber = c(1L, 1L, 1L, 1L, 1L, 1L), trialdate = c("2005-05-16", "2005-05-17", "2005-05-17", "2005-05-17", "2005-05-18", "2005-05-18"), assay.local.density = c(0, 0.942, 0.942, 1.13, 0, 0.753), assay_avg_fam = c(0, 0, 146, 228, 0, 0), OFT1 = c(-0.595, -0.228, -0.366, -1.38, 1.61, 0.206), OFT2 = c(-0.0859, -0.0403, -0.272, 0.252, 0.0803, 0.442)), row.names = c(NA, -6L), class = "data.frame")
merged_axys <- structure(list(squirrel_id = c(19553L, 19553L, 19553L, 19553L, 19553L, 19553L), grid = c("JO", "JO", "JO", "JO", "JO", "JO"), sex = c("F", "F", "F", "F", "F", "F"), axy_ageclass = c("A", "A", "A", "A", "A", "A"), axy_age = c(3L, 3L, 3L, 3L, 3L, 3L), byear = c(2013L, 2013L, 2013L, 2013L, 2013L, 2013L), axy_yr = c(2016L, 2016L, 2016L, 2016L, 2016L, 2016L), axy_id = c("19553-2016-03-14-dawn", "19553-2016-03-14-day", "19553-2016-03-14-dusk", "19553-2016-03-14-night", "19553-2016-03-15-dawn", "19553-2016-03-15-day" ), axy_date = c("2016-03-14", "2016-03-14", "2016-03-14", "2016-03-14", "2016-03-15", "2016-03-15"), axy.local.density = c(2.83, 2.83, 2.83, 2.83, 2.83, 2.83), axy_avg_fam = c(421, 421, 421, 421, 421, 421), PC1 = c(-1.51, 1.16, -1.55, -1.41, -0.541, 1.07), PC2 = c(0.148, 0.00814, 0.0961, 0.282, 1.41, 0.107)), row.names = c(NA, -6L), class = "data.frame")