spsUtil (version 0.2.2.1)

inc: In-place operations

Description

In-place operations like `i += 1`, `i -= 1` is not support in R. These functions implement these operations in R.

Usage

inc(e1, e2 = 1)
mult(e1, e2 = 2)
divi(e1, e2 = 2)

Value

No return, directly assign the value back to `e1`

Arguments

e1

object, most likely a numeric object

e2

the operation value, the value to add, subtract, multiply, divide of.

Details

`inc(i)` is the same as `i <- i + 1`. `inc(i, -1)` is the same as `i <- i - 1`. `mult(i)` is the same as `i <- i * 2`. `divi(i)` is the same as `i <- i / 2`.

See Also

If you want [shiny::reactiveVal] version of these operators, check [spsComps](https://systempipe.org/sps/funcs/spscomps/reference/). [shiny::reactiveValues] operation will be the same as normal values.

Examples

i <- 0
inc(i) # add 1
i
inc(i) # add 1
i
inc(i, -1) # minus 1
i
inc(i, -1) # minus 1
i
x <- 1
mult(x) # times 2
x
mult(x) # times 2
x
divi(x) # divide 2
x
divi(x) # divide 2
x