# zlog 1.0

## Changes in 1.0.0

# zlog 0.0

## Changes in 0.0.16

- Add
`impute_df`

to impute missing values with there correct reference values.

## Changes in 0.0.15

- No user-visible changes.
- Move reference lookup code from
`z_df`

/`zlog_df`

to the internal `.lookup_limits_df`

function.

## Changes in 0.0.14

- Fix for
`lookup_limits`

that reordered its results depending on the “age” column in the “table” argument.
- Fix for
`z_df`

and `z_logdf`

now correctly handle the ordering of the `matrix`

returned by `lookup_limits`

.

## Changes in 0.0.13

- Add
`set_missing_limits`

.
- Fix first author name of reference in manual pages for
`zcol`

, `zlog`

and `zlog_df`

.

## Changes in 0.0.12

`z_df`

and `zlog_df`

now accept a reference table `limits`

with more parameters (`params`

) than present in the `x`

`data.frame`

.

## Changes in 0.0.11

- Add
`z_df`

and `zlog_df`

as convenient wrapper around `z`

/`zlog`

and `lookup_limits`

for larger `data.frame`

s and reference tables.
- Fix ordering in
`lookup_limits`

if a `"param"`

column is given.

## Changes in 0.0.10

`z`

gains a `log`

argument (default: `FALSE`

) and `zlog`

is now an alias for `z(..., log = TRUE)`

.

## Changes in 0.0.9

- Add support for multiple reference parameters in
`lookup_limits`

.

## Changes in 0.0.8

- Add
*z* and *z(log)* equation to vignette.

## Changes in 0.0.7

- Extend
`pbc`

vignette example with a sex-specific reference table and use `lookup_limits`

.

## Changes in 0.0.6

`zcol`

: slightly increase color contrast around 1 and 2 (move darker colours one unit into the middle).

## Changes in 0.0.5

- Add
`lookup_limits`

to find reference limits in reference tables.

## Changes in 0.0.4

- Fix
`zcol`

for `NA`

.
- Add
`surival::pbc`

example to the vignette.

## Changes in 0.0.3

- Add
`iz`

/`izlog`

as inverse function to `z`

/`zlog`

; closes #2.

## Changes in 0.0.2

- Vectorise
`limits`

, `probs`

argument of `z`

and `zlog`

; closes #1.

## Changes in 0.0.1