Description Usage Arguments Value Examples
Several ways to subset based on logical range comparison helpers
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | e1 %sgele% e2
e1 %sgel% e2
e1 %sgle% e2
e1 %sgl% e2
e1 %sge% e2
e1 %sg% e2
e1 %sle% e2
e1 %sl% e2
e1 %sin% e2
e1 %s!in% e2
e1 %snin% e2
e1 %s==% e2
e1 %s!=% e2
e1 %sc% e2
e1 %se% e2
|
e1 |
A number of vector to be evaluated and subset |
e2 |
A vector of one or two numbers used to denote the limits for logical comparison. |
A subset of e1
that meets the logical conditions.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | 1:5 %sgele% c(2, 4)
1:5 %sgele% c(4, 2) # order does not matter uses min / max
1:5 %sgel% c(2, 4)
1:5 %sgel% c(4, 2) # order does not matter uses min / max
1:5 %sgle% c(2, 4)
1:5 %sgle% c(4, 2) # order does not matter uses min / max
1:5 %sgl% c(2, 4)
1:5 %sgl% c(4, 2) # order does not matter uses min / max
1:5 %sge% 2
1:5 %sge% 4
1:5 %sg% 2
1:5 %sg% 4
1:5 %sle% 2
1:5 %sle% 4
1:5 %sl% 2
1:5 %sl% 4
1:5 %sin% c(2, 99)
c("jack", "jill", "john", "jane") %sin% c("jill", "jane", "bill")
1:5 %s!in% c(2, 99)
c("jack", "jill", "john", "jane") %s!in% c("jill", "jane", "bill")
1:5 %s==% 1:5
1:5 %s==% c(1:4, 1)
1:5 %s!=% 1:5
1:5 %s!=% c(1:4, 1)
## define a variable
sample_data <- c(1, 3, 9, 5, NA, -9)
## suppose that we expect that values should fall in [1, 10]
## unless they are special character, -9 used for unknown / refused
sample_data %sc% "( >= 1 & <= 10 ) | == -9"
## we might expect some missing values and be OK as long as
## above conditions are met or values are missing
sample_data %sc% "( >= 1 & <= 10 ) | == -9 | is.na"
## equally we might be expecting NO missing values
## and want missing values to come up as FALSE
sample_data %sc% "(( >= 1 & <= 10 ) | == -9) & !is.na"
## clean up
rm(sample_data)
## define a variable
sample_data <- c(1, 3, 9, 5, -9)
sample_data %se% "(-8, 1] | [2, 9)"
## clean up
rm(sample_data)
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