slope {Xeva} | R Documentation

## Computes slope

### Description

`slope` returns the slope for given time and volume data.

### Usage

    slope(time, volume, degree = TRUE)

### Arguments

`time` | A `vector` of time.
`volume` | A `vector` of volume.
`degree` | Default `TRUE` will give angle in degrees and `FALSE` will return in radians.

### Value

Returns the slope and a `fit` object.

### Examples

    time  <- c(0, 3, 7, 11, 18, 22, 26, 30, 32, 35)
    volume<- c(250.8, 320.4, 402.3, 382.6, 384, 445.9, 460.2, 546.8, 554.3, 617.9)
    sl <- slope(time, volume)
    par(pty="s")
    xylimit <- range(c(time, volume))
    plot(time, volume, type = "b", xlim = xylimit, ylim = xylimit)
    abline(lm(volume~time))

[Package Xeva version 1.8.0 Index]