Add a column with SQUIDs to a data frame
Usage
add_squids_to_df(
x,
colName = "SQUID",
warnAgainstOverwriting = TRUE,
origin = Sys.time(),
follow = NULL,
followBy = NULL
)Arguments
- x
The data frame
- colName
The name of the column to add; set to
NULLto return the column instead of the data frame.- warnAgainstOverwriting
Whether to throw an error if a column with name
colNamealready exists.- origin
The origin to use when generating the SQUIDs. This allows you to reproduce the same sequence of SQUIDs. You can easily get an origin with
get_current_origin(). Theoriginis a timestamp; an object of classPOSIXct(see squids-package for more details).- follow
A vector of one or more SQUIDs (or a list; lists are recursively
unlist()ed); the highest SQUID will be taken, converted to a timestamp, and used asorigin(well, 0.01 second later), so that the new SQUIDs will follow that sequence.- followBy
When following a vector of SQUIDs, this can be used to specify the distance between the two vectors in centiseconds.
Value
If colName = NULL, the column with SQUIDs; otherwise, x with
an additional column named with the value of colName.
Examples
squids::add_squids_to_df(
mtcars
);
#> mpg cyl disp hp drat wt qsec vs am gear carb
#> Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 0 1 4 4
#> Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4
#> Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 1 1 4 1
#> Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 1 0 3 1
#> Hornet Sportabout 18.7 8 360.0 175 3.15 3.440 17.02 0 0 3 2
#> Valiant 18.1 6 225.0 105 2.76 3.460 20.22 1 0 3 1
#> Duster 360 14.3 8 360.0 245 3.21 3.570 15.84 0 0 3 4
#> Merc 240D 24.4 4 146.7 62 3.69 3.190 20.00 1 0 4 2
#> Merc 230 22.8 4 140.8 95 3.92 3.150 22.90 1 0 4 2
#> Merc 280 19.2 6 167.6 123 3.92 3.440 18.30 1 0 4 4
#> Merc 280C 17.8 6 167.6 123 3.92 3.440 18.90 1 0 4 4
#> Merc 450SE 16.4 8 275.8 180 3.07 4.070 17.40 0 0 3 3
#> Merc 450SL 17.3 8 275.8 180 3.07 3.730 17.60 0 0 3 3
#> Merc 450SLC 15.2 8 275.8 180 3.07 3.780 18.00 0 0 3 3
#> Cadillac Fleetwood 10.4 8 472.0 205 2.93 5.250 17.98 0 0 3 4
#> Lincoln Continental 10.4 8 460.0 215 3.00 5.424 17.82 0 0 3 4
#> Chrysler Imperial 14.7 8 440.0 230 3.23 5.345 17.42 0 0 3 4
#> Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1
#> Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2
#> Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1
#> Toyota Corona 21.5 4 120.1 97 3.70 2.465 20.01 1 0 3 1
#> Dodge Challenger 15.5 8 318.0 150 2.76 3.520 16.87 0 0 3 2
#> AMC Javelin 15.2 8 304.0 150 3.15 3.435 17.30 0 0 3 2
#> Camaro Z28 13.3 8 350.0 245 3.73 3.840 15.41 0 0 3 4
#> Pontiac Firebird 19.2 8 400.0 175 3.08 3.845 17.05 0 0 3 2
#> Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4 1
#> Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5 2
#> Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2
#> Ford Pantera L 15.8 8 351.0 264 4.22 3.170 14.50 0 1 5 4
#> Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5 6
#> Maserati Bora 15.0 8 301.0 335 3.54 3.570 14.60 0 1 5 8
#> Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 1 1 4 2
#> SQUID
#> Mazda RX4 830ly8mz
#> Mazda RX4 Wag 830ly8n0
#> Datsun 710 830ly8n1
#> Hornet 4 Drive 830ly8n2
#> Hornet Sportabout 830ly8n3
#> Valiant 830ly8n4
#> Duster 360 830ly8n5
#> Merc 240D 830ly8n6
#> Merc 230 830ly8n7
#> Merc 280 830ly8n8
#> Merc 280C 830ly8n9
#> Merc 450SE 830ly8nb
#> Merc 450SL 830ly8nc
#> Merc 450SLC 830ly8nd
#> Cadillac Fleetwood 830ly8nf
#> Lincoln Continental 830ly8ng
#> Chrysler Imperial 830ly8nh
#> Fiat 128 830ly8nj
#> Honda Civic 830ly8nk
#> Toyota Corolla 830ly8nl
#> Toyota Corona 830ly8nm
#> Dodge Challenger 830ly8nn
#> AMC Javelin 830ly8np
#> Camaro Z28 830ly8nq
#> Pontiac Firebird 830ly8nr
#> Fiat X1-9 830ly8ns
#> Porsche 914-2 830ly8nt
#> Lotus Europa 830ly8nw
#> Ford Pantera L 830ly8nx
#> Ferrari Dino 830ly8ny
#> Maserati Bora 830ly8nz
#> Volvo 142E 830ly8p0