hzDepthTests {aqp} R Documentation

Tests of horizon depth logic

Description

Function used internally by `checkHzDepthLogic()`, `glom()` and various other functions that operate on horizon data from single soil profiles and require a priori depth logic checks. Checks for bottom depths less than top depth / bad top depth order ("depthLogic"), bottom depths equal to top depth ("sameDepth"), overlaps/gaps ("overlapOrGap") and missing depths ("missingDepth"). Use `names(res)[res]` on result `res` of `hzDepthTest()` to to determine type of logic error(s) found – see examples below.

Usage

```hzDepthTests(top, bottom = NULL)
```

Arguments

 `top` A numeric vector containing horizon top depths. Or a `data.frame` with two columns (first containing top depths, second containing bottom) `bottom` A numeric vector containing horizon bottom depths.

Value

A named logical vector containing TRUE for each type of horizon logic error found in the given data.

Author(s)

Andrew G. Brown & Dylan E. Beaudette

Examples

```
# no logic errors
res <- hzDepthTests(top = c(0,10,20,30), bottom = c(10,20,30,50))
names(res)[res]

# bottom < top
hzDepthTests(top = c(10,20,30,50), bottom = c(0,10,20,30))
names(res)[res]

# bottom == top
hzDepthTests(top = c(10,20,30,50), bottom = c(0,20,20,30))
names(res)[res]

# overlap
hzDepthTests(top = c(0,5,20,30), bottom = c(10,20,30,50))
names(res)[res]

# gap
hzDepthTests(top = c(0,15,20,30), bottom = c(10,20,30,50))
names(res)[res]

# missing
hzDepthTests(c(0,15,NA,30),c(10,NA,30,50))
names(res)[res]

```

[Package aqp version 1.40 Index]