R course
Daniel Vaulot
2023-01-19




Data wrangling
List
Matrix
Factors
Data frames
  label id       value  flag
1     a  1  0.03963652  TRUE
2     b  2 -1.03193245 FALSE
3     c  3 -0.46903884  TRUE
4     d  4 -1.36385849 FALSE
5     e  5  0.71374085  TRUE
6     f  6  0.48473275 FALSE* We will NOT use factors: stringsAsFactors = FALSE (default in R > 4.0)
[1] 6 4
[1] 6
[1] 4'data.frame':   6 obs. of  4 variables:
 $ label: chr  "a" "b" "c" "d" ...
 $ id   : int  1 2 3 4 5 6
 $ value: num  0.0396 -1.0319 -0.469 -1.3639 0.7137 ...
 $ flag : logi  TRUE FALSE TRUE FALSE TRUE FALSE
[1] "label" "id"    "value" "flag" df[i,j] notation, first index corresponds to row, second index to column[1] 0.7137409df[i,j] notation ::: {.cell output-location=‘fragment’}[1]  0.03963652 -1.03193245 -0.46903884 -1.36385849  0.71374085  0.48473275
[1]  0.03963652 -1.03193245 -0.46903884 -1.36385849  0.71374085  0.48473275::: The result is a vector
df[i,j] notation ::: {.cell output-location=‘fragment’}  label id      value flag
1     a  1 0.03963652 TRUE:::
The result is a data frame
  label id       value  flag
1     a  1  0.03963652  TRUE
2     b  2 -1.03193245 FALSE
3     c  3 -0.46903884  TRUESelect lines for which the label is c
This syntax is complicated - tidyverse packages make it much more easy to manipulate and remember
data.zipscripts/script_wrangling.RR for data science: (Chapter 5)
Cheat sheets




| sample number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | phosphates | nitrates | temperature | salinity | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 1 | 81 | 13/11/2013 | 01:00:00 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 0.20 | 0.26 | 17.3 | 35.9 | 
| 11 | 1 | 85 | 13/11/2013 | 13:30:00 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 0.29 | 0.22 | 21.3 | 36.5 | 
| 120 | 2 | 96 | 18/11/2013 | 23:50:00 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 0.43 | 0.19 | 23.1 | 33.5 | 
| 121 | 2 | 18/11/2013 | 23:50:00 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 0.43 | 0.23 | 22.6 | 33.7 | |
| 122 | 2 | 18/11/2013 | 23:50:00 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 0.56 | 0.21 | 20.3 | 35.9 | |
| 125 | 2 | 98 | 18/11/2013 | 05:00:00 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 0.29 | 0.25 | 23.1 | 35.7 | 
| 126 | 2 | 18/11/2013 | 05:00:00 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 0.25 | 0.20 | 23.7 | 37.2 | |
| 127 | 2 | 18/11/2013 | 05:00:00 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 0.25 | 0.47 | 22.9 | 37.0 | |
| 13 | 1 | 86 | 13/11/2013 | 17:00:00 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 0.34 | 0.15 | 20.9 | 36.3 | 
| 140 | 2 | 101 | 18/11/2013 | 12:00:00 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 0.29 | 0.14 | 23.5 | 36.5 | 
readr::read_tsv() : read tab delimited files
readr::read_csv() : read comma delimited files
readr::write_tsv() : write tab delimited files
| sample number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | phosphates | nitrates | temperature | salinity | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 1 | 81 | 2013-11-13 | 1899-12-31 01:00:00 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 0.20 | 0.26 | 17.3 | 35.9 | 
| 11 | 1 | 85 | 2013-11-13 | 1899-12-31 13:30:00 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 0.29 | 0.22 | 21.3 | 36.5 | 
| 120 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 0.43 | 0.19 | 23.1 | 33.5 | 
| 121 | 2 | 2013-11-18 | 1899-12-31 23:50:00 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 0.43 | 0.23 | 22.6 | 33.7 | |
| 122 | 2 | 2013-11-18 | 1899-12-31 23:50:00 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 0.56 | 0.21 | 20.3 | 35.9 | |
| 125 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 0.29 | 0.25 | 23.1 | 35.7 | 
| 126 | 2 | 2013-11-18 | 1899-12-31 05:00:00 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 0.25 | 0.20 | 23.7 | 37.2 | |
| 127 | 2 | 2013-11-18 | 1899-12-31 05:00:00 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 0.25 | 0.47 | 22.9 | 37.0 | |
| 13 | 1 | 86 | 2013-11-13 | 1899-12-31 17:00:00 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 0.34 | 0.15 | 20.9 | 36.3 | 
| 140 | 2 | 101 | 2013-11-18 | 1899-12-31 12:00:00 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 0.29 | 0.14 | 23.5 | 36.5 | 
| sample number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | phosphates | nitrates | temperature | salinity | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 1 | 81 | 2013-11-13 | 1899-12-31 01:00:00 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 0.20 | 0.26 | 17.3 | 35.9 | 
| 11 | 1 | 85 | 2013-11-13 | 1899-12-31 13:30:00 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 0.29 | 0.22 | 21.3 | 36.5 | 
| 120 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 0.43 | 0.19 | 23.1 | 33.5 | 
| 121 | 2 | 2013-11-18 | 1899-12-31 23:50:00 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 0.43 | 0.23 | 22.6 | 33.7 | |
| 122 | 2 | 2013-11-18 | 1899-12-31 23:50:00 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 0.56 | 0.21 | 20.3 | 35.9 | |
| 125 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 0.29 | 0.25 | 23.1 | 35.7 | 
| 126 | 2 | 2013-11-18 | 1899-12-31 05:00:00 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 0.25 | 0.20 | 23.7 | 37.2 | |
| 127 | 2 | 2013-11-18 | 1899-12-31 05:00:00 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 0.25 | 0.47 | 22.9 | 37.0 | |
| 13 | 1 | 86 | 2013-11-13 | 1899-12-31 17:00:00 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 0.34 | 0.15 | 20.9 | 36.3 | 
| 140 | 2 | 101 | 2013-11-18 | 1899-12-31 12:00:00 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 0.29 | 0.14 | 23.5 | 36.5 | 
| sample number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | phosphates | nitrates | temperature | salinity | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 1 | 81 | 2013-11-13 | 1899-12-31 01:00:00 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 0.20 | 0.26 | 17.3 | 35.9 | 
| 11 | 1 | 85 | 2013-11-13 | 1899-12-31 13:30:00 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 0.29 | 0.22 | 21.3 | 36.5 | 
| 120 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 0.43 | 0.19 | 23.1 | 33.5 | 
| 121 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 0.43 | 0.23 | 22.6 | 33.7 | 
| 122 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 0.56 | 0.21 | 20.3 | 35.9 | 
| 125 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 0.29 | 0.25 | 23.1 | 35.7 | 
| 126 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 0.25 | 0.20 | 23.7 | 37.2 | 
| 127 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 0.25 | 0.47 | 22.9 | 37.0 | 
| 13 | 1 | 86 | 2013-11-13 | 1899-12-31 17:00:00 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 0.34 | 0.15 | 20.9 | 36.3 | 
| 140 | 2 | 101 | 2013-11-18 | 1899-12-31 12:00:00 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 0.29 | 0.14 | 23.5 | 36.5 | 
openxlsx::write.xlsx : write tab delimited files
Many options: specific sheet, formatting etc…

@allison_horst
 [1] "sample number" "transect"      "station"       "date"         
 [5] "time"          "depth"         "level"         "latitude"     
 [9] "longitude"     "picoeuks"      "nanoeuks"      "phosphates"   
[13] "nitrates"      "temperature"   "salinity"     | transect | sample number | station | depth | latitude | longitude | picoeuks | nanoeuks | 
|---|---|---|---|---|---|---|---|
| 1 | 10 | 81 | 140 | -27.42 | -44.72 | 3278 | 1232 | 
| 1 | 11 | 85 | 110 | -26.80 | -45.30 | 16312 | 1615 | 
| 2 | 120 | 96 | 5 | -27.39 | -47.82 | 1150 | 75 | 
| 2 | 121 | 96 | 30 | -27.39 | -47.82 | 1737 | 218 | 
| 2 | 122 | 96 | 50 | -27.39 | -47.82 | 853 | 234 | 
| 2 | 125 | 98 | 5 | -27.59 | -47.39 | 3086 | 1300 | 
| 2 | 126 | 98 | 50 | -27.59 | -47.39 | 1217 | 782 | 
| 2 | 127 | 98 | 85 | -27.59 | -47.39 | 3420 | 226 | 
| 1 | 13 | 86 | 105 | -26.33 | -45.41 | 6366 | 1007 | 
| 2 | 140 | 101 | 5 | -27.79 | -46.96 | 500 | 366 | 
* Column names are not “quoted” (in base R you need to “quote” the column names)
* Better not to put space in column header because then must enclose column name with ` (back-quote)
| transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | 
|---|---|---|---|---|---|---|---|---|---|
| 1 | 81 | 2013-11-13 | 1899-12-31 01:00:00 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 
| 1 | 85 | 2013-11-13 | 1899-12-31 13:30:00 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 
| 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 
| 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 
| 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 
| 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 
| 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 
| 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 
| 1 | 86 | 2013-11-13 | 1899-12-31 17:00:00 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 
| 2 | 101 | 2013-11-18 | 1899-12-31 12:00:00 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 
| sample number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | temperature | salinity | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 1 | 81 | 2013-11-13 | 1899-12-31 01:00:00 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 17.3 | 35.9 | 
| 11 | 1 | 85 | 2013-11-13 | 1899-12-31 13:30:00 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 21.3 | 36.5 | 
| 120 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 23.1 | 33.5 | 
| 121 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 22.6 | 33.7 | 
| 122 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 20.3 | 35.9 | 
| 125 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 23.1 | 35.7 | 
| 126 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 23.7 | 37.2 | 
| 127 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 22.9 | 37.0 | 
| 13 | 1 | 86 | 2013-11-13 | 1899-12-31 17:00:00 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 20.9 | 36.3 | 
| 140 | 2 | 101 | 2013-11-18 | 1899-12-31 12:00:00 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 23.5 | 36.5 | 
| transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | 
|---|---|---|---|---|---|---|---|---|---|
| 1 | 81 | 2013-11-13 | 1899-12-31 01:00:00 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 
| 1 | 85 | 2013-11-13 | 1899-12-31 13:30:00 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 
| 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 
| 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 
| 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 
| 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 
| 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 
| 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 
| 1 | 86 | 2013-11-13 | 1899-12-31 17:00:00 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 
| 2 | 101 | 2013-11-18 | 1899-12-31 12:00:00 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 
| sample_number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | phosphates | nitrates | temperature | salinity | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 1 | 81 | 2013-11-13 | 1899-12-31 01:00:00 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 0.20 | 0.26 | 17.3 | 35.9 | 
| 11 | 1 | 85 | 2013-11-13 | 1899-12-31 13:30:00 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 0.29 | 0.22 | 21.3 | 36.5 | 
| 120 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 0.43 | 0.19 | 23.1 | 33.5 | 
| 121 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 0.43 | 0.23 | 22.6 | 33.7 | 
| 122 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 0.56 | 0.21 | 20.3 | 35.9 | 
| 125 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 0.29 | 0.25 | 23.1 | 35.7 | 
| 126 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 0.25 | 0.20 | 23.7 | 37.2 | 
| 127 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 0.25 | 0.47 | 22.9 | 37.0 | 
| 13 | 1 | 86 | 2013-11-13 | 1899-12-31 17:00:00 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 0.34 | 0.15 | 20.9 | 36.3 | 
| 140 | 2 | 101 | 2013-11-18 | 1899-12-31 12:00:00 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 0.29 | 0.14 | 23.5 | 36.5 | 
| sample_number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | phosphates | nitrates | temperature | salinity | pico_pct | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 1 | 81 | 2013-11-13 | 1899-12-31 01:00:00 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 0.20 | 0.26 | 17.3 | 35.9 | 72.68293 | 
| 11 | 1 | 85 | 2013-11-13 | 1899-12-31 13:30:00 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 0.29 | 0.22 | 21.3 | 36.5 | 90.99124 | 
| 120 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 0.43 | 0.19 | 23.1 | 33.5 | 93.87755 | 
| 121 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 0.43 | 0.23 | 22.6 | 33.7 | 88.84910 | 
| 122 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 0.56 | 0.21 | 20.3 | 35.9 | 78.47286 | 
| 125 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 0.29 | 0.25 | 23.1 | 35.7 | 70.36024 | 
| 126 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 0.25 | 0.20 | 23.7 | 37.2 | 60.88044 | 
| 127 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 0.25 | 0.47 | 22.9 | 37.0 | 93.80143 | 
| 13 | 1 | 86 | 2013-11-13 | 1899-12-31 17:00:00 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 0.34 | 0.15 | 20.9 | 36.3 | 86.34206 | 
| 140 | 2 | 101 | 2013-11-18 | 1899-12-31 12:00:00 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 0.29 | 0.14 | 23.5 | 36.5 | 57.73672 | 
| sample_number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | pico_pct | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 1 | 81 | 2013-11-13 | 1899-12-31 01:00:00 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 72.68293 | 
| 11 | 1 | 85 | 2013-11-13 | 1899-12-31 13:30:00 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 90.99124 | 
| 120 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 93.87755 | 
| 121 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 88.84910 | 
| 122 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 78.47286 | 
| 125 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 70.36024 | 
| 126 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 60.88044 | 
| 127 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 93.80143 | 
| 13 | 1 | 86 | 2013-11-13 | 1899-12-31 17:00:00 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 86.34206 | 
| 140 | 2 | 101 | 2013-11-18 | 1899-12-31 12:00:00 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 57.73672 | 
| sample_number | transect | station | date | time | sample_label | 
|---|---|---|---|---|---|
| 10 | 1 | 81 | 2013-11-13 | 1899-12-31 01:00:00 | TR_1_St_81 | 
| 11 | 1 | 85 | 2013-11-13 | 1899-12-31 13:30:00 | TR_1_St_85 | 
| 120 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | TR_2_St_96 | 
| 121 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | TR_2_St_96 | 
| 122 | 2 | 96 | 2013-11-18 | 1899-12-31 23:50:00 | TR_2_St_96 | 
| 125 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | TR_2_St_98 | 
| 126 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | TR_2_St_98 | 
| 127 | 2 | 98 | 2013-11-18 | 1899-12-31 05:00:00 | TR_2_St_98 | 
| 13 | 1 | 86 | 2013-11-13 | 1899-12-31 17:00:00 | TR_1_St_86 | 
| 140 | 2 | 101 | 2013-11-18 | 1899-12-31 12:00:00 | TR_2_St_101 | 
lubridate package to manipulate dates| sample_number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | phosphates | nitrates | temperature | salinity | pico_pct | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 1 | 81 | 2013-11-13 | 1:0 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 0.20 | 0.26 | 17.3 | 35.9 | 72.68293 | 
| 11 | 1 | 85 | 2013-11-13 | 13:30 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 0.29 | 0.22 | 21.3 | 36.5 | 90.99124 | 
| 120 | 2 | 96 | 2013-11-18 | 23:50 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 0.43 | 0.19 | 23.1 | 33.5 | 93.87755 | 
| 121 | 2 | 96 | 2013-11-18 | 23:50 | 30 | Deep | -27.39 | -47.82 | 1737 | 218 | 0.43 | 0.23 | 22.6 | 33.7 | 88.84910 | 
| 122 | 2 | 96 | 2013-11-18 | 23:50 | 50 | Deep | -27.39 | -47.82 | 853 | 234 | 0.56 | 0.21 | 20.3 | 35.9 | 78.47286 | 
| 125 | 2 | 98 | 2013-11-18 | 5:0 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 0.29 | 0.25 | 23.1 | 35.7 | 70.36024 | 
| 126 | 2 | 98 | 2013-11-18 | 5:0 | 50 | Deep | -27.59 | -47.39 | 1217 | 782 | 0.25 | 0.20 | 23.7 | 37.2 | 60.88044 | 
| 127 | 2 | 98 | 2013-11-18 | 5:0 | 85 | Deep | -27.59 | -47.39 | 3420 | 226 | 0.25 | 0.47 | 22.9 | 37.0 | 93.80143 | 
| 13 | 1 | 86 | 2013-11-13 | 17:0 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 0.34 | 0.15 | 20.9 | 36.3 | 86.34206 | 
| 140 | 2 | 101 | 2013-11-18 | 12:0 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 0.29 | 0.14 | 23.5 | 36.5 | 57.73672 | 
| sample_number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | phosphates | nitrates | temperature | salinity | pico_pct | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 0 | 19 | 2013-11-02 | 13:30 | 5 | Surf | -25.79 | -40.36 | 1005 | 898 | 0.29 | 0.48 | 22.7 | 36.9 | 52.81135 | 
| 5 | 0 | 21 | 2013-11-02 | 0:0 | 5 | Surf | -26.23 | -40.09 | 793 | 660 | 0.16 | 0.90 | 22.8 | 36.9 | 54.57674 | 
| 7 | 0 | 26 | 2013-11-03 | 19:30 | 5 | Surf | -27.31 | -39.38 | 907 | 856 | 0.20 | 0.50 | 21.2 | 36.4 | 51.44640 | 
| 1 | 0 | 6 | 2013-10-31 | 5:20 | 45 | Deep | -23.58 | -41.78 | 7651 | 4845 | 0.47 | 1.07 | 19.7 | 36.3 | 61.22759 | 
| 2 | 0 | 6 | 2013-10-31 | 5:20 | 45 | Deep | -23.58 | -41.78 | 7343 | 3258 | 0.47 | 1.07 | 19.7 | 36.3 | 69.26705 | 
| 10 | 1 | 81 | 2013-11-13 | 1:0 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 0.20 | 0.26 | 17.3 | 35.9 | 72.68293 | 
| 9 | 1 | 81 | 2013-11-13 | 1:0 | 140 | Deep | -27.42 | -44.72 | 3181 | 1235 | 0.20 | 0.26 | 17.3 | 35.9 | 72.03351 | 
| 11 | 1 | 85 | 2013-11-13 | 13:30 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 0.29 | 0.22 | 21.3 | 36.5 | 90.99124 | 
| 13 | 1 | 86 | 2013-11-13 | 17:0 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 0.34 | 0.15 | 20.9 | 36.3 | 86.34206 | 
| 15 | 1 | 87 | 2013-11-13 | 19:30 | 105 | Deep | -26.22 | -45.48 | 6189 | 622 | 0.47 | 1.51 | 19.5 | 36.1 | 90.86771 | 
| sample_number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | phosphates | nitrates | temperature | salinity | pico_pct | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 0 | 6 | 2013-10-31 | 5:20 | 45 | Deep | -23.58 | -41.78 | 7651 | 4845 | 0.47 | 1.07 | 19.7 | 36.3 | 61.22759 | 
| 2 | 0 | 6 | 2013-10-31 | 5:20 | 45 | Deep | -23.58 | -41.78 | 7343 | 3258 | 0.47 | 1.07 | 19.7 | 36.3 | 69.26705 | 
| 3 | 0 | 19 | 2013-11-02 | 13:30 | 5 | Surf | -25.79 | -40.36 | 1005 | 898 | 0.29 | 0.48 | 22.7 | 36.9 | 52.81135 | 
| 5 | 0 | 21 | 2013-11-02 | 0:0 | 5 | Surf | -26.23 | -40.09 | 793 | 660 | 0.16 | 0.90 | 22.8 | 36.9 | 54.57674 | 
| 7 | 0 | 26 | 2013-11-03 | 19:30 | 5 | Surf | -27.31 | -39.38 | 907 | 856 | 0.20 | 0.50 | 21.2 | 36.4 | 51.44640 | 
| 10 | 1 | 81 | 2013-11-13 | 1:0 | 140 | Deep | -27.42 | -44.72 | 3278 | 1232 | 0.20 | 0.26 | 17.3 | 35.9 | 72.68293 | 
| 9 | 1 | 81 | 2013-11-13 | 1:0 | 140 | Deep | -27.42 | -44.72 | 3181 | 1235 | 0.20 | 0.26 | 17.3 | 35.9 | 72.03351 | 
| 11 | 1 | 85 | 2013-11-13 | 13:30 | 110 | Deep | -26.80 | -45.30 | 16312 | 1615 | 0.29 | 0.22 | 21.3 | 36.5 | 90.99124 | 
| 13 | 1 | 86 | 2013-11-13 | 17:0 | 105 | Deep | -26.33 | -45.41 | 6366 | 1007 | 0.34 | 0.15 | 20.9 | 36.3 | 86.34206 | 
| 15 | 1 | 87 | 2013-11-13 | 19:30 | 105 | Deep | -26.22 | -45.48 | 6189 | 622 | 0.47 | 1.51 | 19.5 | 36.1 | 90.86771 | 
| transect | n | 
|---|---|
| 0 | 5 | 
| 1 | 5 | 
| 2 | 18 | 
| transect | station | n_samples | mean_pico_percent | 
|---|---|---|---|
| 0 | 6 | 2 | 65.24732 | 
| 0 | 19 | 1 | 52.81135 | 
| 0 | 21 | 1 | 54.57674 | 
| 0 | 26 | 1 | 51.44640 | 
| 1 | 81 | 2 | 72.35822 | 
| 1 | 85 | 1 | 90.99124 | 
| 1 | 86 | 1 | 86.34206 | 
| 1 | 87 | 1 | 90.86771 | 
| 2 | 96 | 3 | 87.06651 | 
| 2 | 98 | 3 | 75.01403 | 
| sample_number | transect | station | date | time | depth | level | latitude | longitude | picoeuks | nanoeuks | phosphates | nitrates | temperature | salinity | pico_pct | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 0 | 19 | 2013-11-02 | 13:30 | 5 | Surf | -25.79 | -40.36 | 1005 | 898 | 0.29 | 0.48 | 22.7 | 36.9 | 52.81135 | 
| 5 | 0 | 21 | 2013-11-02 | 0:0 | 5 | Surf | -26.23 | -40.09 | 793 | 660 | 0.16 | 0.90 | 22.8 | 36.9 | 54.57674 | 
| 7 | 0 | 26 | 2013-11-03 | 19:30 | 5 | Surf | -27.31 | -39.38 | 907 | 856 | 0.20 | 0.50 | 21.2 | 36.4 | 51.44640 | 
| 120 | 2 | 96 | 2013-11-18 | 23:50 | 5 | Surf | -27.39 | -47.82 | 1150 | 75 | 0.43 | 0.19 | 23.1 | 33.5 | 93.87755 | 
| 125 | 2 | 98 | 2013-11-18 | 5:0 | 5 | Surf | -27.59 | -47.39 | 3086 | 1300 | 0.29 | 0.25 | 23.1 | 35.7 | 70.36024 | 
| 140 | 2 | 101 | 2013-11-18 | 12:0 | 5 | Surf | -27.79 | -46.96 | 500 | 366 | 0.29 | 0.14 | 23.5 | 36.5 | 57.73672 | 
| 155 | 2 | 106 | 2013-11-19 | 2:30 | 5 | Surf | -28.12 | -46.17 | 355 | 18 | 0.25 | 0.37 | 23.0 | 36.9 | 95.17426 | 
| 165 | 2 | 114 | 2013-11-19 | 21:40 | 5 | Surf | -28.65 | -44.99 | 728 | 226 | 0.29 | 0.28 | 22.4 | 36.4 | 76.31027 | 
| Trichod.1 | 2 | Surf | -27.80 | -47.10 | 1002 | 194 | 83.77926 | ||||||||
| Trichod.2 | 2 | Surf | -27.80 | -47.10 | 744 | 206 | 78.31579 | 
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