`show()`

: Opens each case within an scdf in a separate viewer tab.- Helper functions for
`transform()`

:`n()`

,`all_cases()`

,`across_cases()`

,`first_of`

- Helper functions for
`transform()`

:`moving_mean()`

,`moving_median()`

,`local_regression()`

`corrected_tau()`

: returns multiple cases`export()`

: new for`nap(), pen()`

- solved:
`summary()`

failed when one of the cases had no name - solved:
`nap()`

only report values for the first case with multiple cases.

`convert()`

: new arguments. indent sets the indentation. When the scdf contains only one case, no study is combined.

`export()`

: New export for`power_test()`

and`smd()`

output.`export()`

:`tau_u()`

export with new argument`case`

which takes the values`"meta"`

or`"all"`

and new argument`select`

allowing to select, reorder, and rename specific variables.`select_cases()`

: Allow for a selection based on object names (like in substitute).

```
select_cases(exampleAB, -c(Johanna, Karolina))
select_cases(exampleAB, Johanna, Karolina)
<- c("Moritz", "Jannis")
v select_cases(exampleA1B1A2B2, v)
```

`plm()`

,`hplm()`

: New arguments`contrast_level`

and`contrast_slope`

allow for setting the contrasts for level and slope separately. Both elements can either be “first” or “preceding”.- Speed-up
`tau_u()`

by 20%. - rewrote
`as_scdf()`

,`read_scdf()`

. Now it is easier to import data from any file format.

```
::read_ods("filename.ods") |> as.scdf()
readODS::read.xlsx("filename.xlsx") |> as.scdf()
openxlsx
::read_ods("filename.ods") |>
readODSas.scdf(
cvar = "id",
pvar = "section",
mvar = "day",
phase_names = c("baseline", "intervention")
)
as.data.frame(exampleABC) |> readODS::write_ods("filename.xlsx")
as.data.frame(exampleABC) |> openxlsx::write.xlsx("filename.xlsx")
```

`tau_u()`

: Rewrote the calculation of meta analyses and confidence intervals.`tau_u(), correted_tau()`

: corrected a wrong calculation of the continuity correction when values where lower in phase B.`tau_u()`

: Implemented a new method for calculating confidence intervals based on Fisher-Z transformations (see Long, J. D., & Cliff, N. (1997). Confidence intervals for Kendall’s tau. British Journal of Mathematical and Statistical Psychology, 50(1), 31–41. https://doi.org/10.1111/j.2044-8317.1997.tb01100.x)

`smooth_caes()`

,`shift()`

,`standardise()`

,`ranks()`

,`truncate_phases()`

: All superseded by`transform()`

and its helper functions. See details in the help files of transform and in the scan-book.

`as.data.frane.scdf()`

/`as_scdf()`

: keep and retrieve scdf attributes.

`coef()/ coefficients()`

: Method for base R`coef`

function for plm/hplm objects. Extracts coefficient tables from provided object.

`coef(plm(exampleAB$Johanna))`

`power_test()`

: New argument`ci`

provides confidence intervals for power, alpha error, and correct proportions. New arguments`binom_test_alpha, binom_test_power, binom_test_correct`

provide test against a provided proportion for alpha, power, and correct proportions.

```
<- design(
design n = 1, phase_design = list(A = 6, B = 9),
rtt = 0.8, level = 1.0, trend = 0.05
)
power_test(
ci = 0.95, binom_test = TRUE
design, )
```

`plm()`

,`hplm()`

: Added contrast argument with values`"first"`

or “`preceding`

”. Now`model = "JW"`

is deprecated and identical to`model = "B&L-B", contrast = "preceding"`

.

`plm()`

,`hplm()`

: Added model`"W"`

. Which shifts the measurement-time variable to start with zero. This leads to a more sensible estimation of the intercept (where the intercept depicts the estimated score at the start).`model = "W"`

is now the default. Use`model = "B&L-B"`

for previous defaults.

- solved #66:
`set_vars()`

working. `read_scdf()`

now works when cvar is not the first column.

`corrected_tau()`

: changed default setting of arguments to:`repeated = FALSE, continuity = FALSE`

. Now the default results match the calculator developed by Tarlow.`tau_u()`

: Implemented a continuity_correction (S-1 for calculating Z)

`select_phases()`

now works when phase variable is not “phase”`estimate_design()`

was broken and is fixed now.`print()`

function for`sc_design`

fixed.

`transform()`

: Takes an scdf and calculates or modifies variables for each case (`transform(exampleAB, z_values = scale(values), t_values = 50 + z_values * 10)`

).`smd()`

reporting various types of standardized mean differences.

`readSC()`

->`read_scdf()`

`writeSC()`

->`write_scdf()`

`design_rSC()`

->`design()`

`rSC()`

->`random_scdf()`

`power_test()`

with various extensions, optimizations, and solved various bugs. rewrote the`print`

method, added an argument`duration`

to print the computation duration. Added the`'n_trials'`

argument for binomial distributions. Extended the help page.

`design()`

and its print method. Extended the help page. Rewrote the algorithm for the ‘binomial’ distribution.

`plm()`

: rewrote the analysis function for binomial tests. These now need an argument`var_trials`

to define the number of trials per measurement. The`dvar_percentage`

argument must be set TRUE when the dependent variables are percentages (and`family = 'binomal'`

).- speed optimized
`random_scdf()`

. Rewrote the algorithm for ‘poisson’ distributed measures. Rewrote the algorithm for the ‘binomial’ distribution. Extended the help page.

`read_scdf()`

: extracts filetype from file extension.`read_scdf()`

: New`yaml`

import options for scdf files

```
Anna:
values:
A: [1, 3, 4, 5, 6, 7]
B: [8, 9, 10, 10, 11]
Toni:
values:
A: [2, 3, 4, 5, 6, 7]
B: [3, 9, 10, 10,11]
control_var: [1,2,3,4,5,6,7,8,1,2,3]
```

`tau_u()`

#51: Added option for confidence intervals for tau_u output.

`describe()`

: solved wrong calculation of Hedges G when phase length differed.`plm()`

solved #46: throws no error, when a phase is of length 1.`corrected_tau()`

solved #48: throws warning when A phase has less than three rows.- solved #49: changes class from tibble to data.frame within scdf.

- scdf files now allow to combine studies with different phase designs. Several functions have been adapted to handle cases with differing designs in a mutual analysis.
- The %>% operator has been imported and exported from the magrittr
package. Now that R 4.1 has a pipe operator, pipes seem to become the
standard. For compatibility with older R Versions, we will stay with the
`%>%`

operator for some time before switching to`|>`

. - To allow for a piping code, we added several functions:
`add_l2, select_phases, select_cases, subset, set_vars, set_dvar, set_mvar, set_pvar`

.

`sample_names()`

: Returns a character vector of length`n`

with names by randomly drawing from a name list: type = {“neutral”, “female”, “male”, “mixed”}. Useful to anonymize scdf files

`names(exampleAB) <- sample_names(3)`

-`add_l2()`

: Adds the variables from a second level 2 data
frame to an scdf matched by an id variable (default is
`case`

).

```
%>%
Leidig2018 add_l2(Leidig2018_l2) %>%
hplm(update.fixed = .~. + gender + migration + ITRF_TOTAL*phaseB,
slope = FALSE, random.slopes = FALSE, lr.test = FALSE)
```

`select_phases()`

: selects and recombines phases into A and B phase (equivalent to the phases argument of various functions, but useful when using %>% operators).

```
%>%
exampleA1B1A2B2 select_phases(A = c(1, 3), B = c(2, 4)) %>%
overlap()
```

`set_vars()`

: change the core variables of an scdf (arguments`dvar`

for dependent variable,`pvar`

for phase variable, and`mvar`

for measurement-time variable).`set_dvar()`

,`set_mvar()`

,`set_pvar()`

: Shortcuts to set dvar, mvar, or pvar in a piping script e.g.`exmpleAB_add %>% set_dvar("depression") %>% describe()`

```
%>%
exampleAB_add set_vars(dv = "depression") %>%
overlap()
```

`is.scdf()`

: Tests if an object is of type “scdf” or not.`check_scdf()`

: Checks for the validity of an scdf object (mainly used for internal tests)`convert()`

: Creates an scdf syntax file from an scdf object.

```
# Create a syntax to code the scdf exampleAB and write it into an R file
convert(exampleAB, file = "cases.R")
```

`cdc`

: Applies the Conservative Dual-Criterion Method (CDC; Fisher, Kelley, & Lomas, 2003) to scdf objects.

```
cdc(Beretvas2008)
cdc(exampleAB_decreasing, decreasing = TRUE, trend.method = "bisplit")
```

`overlap()`

: Added Hedges-g.- new trend lines added to
`plot.scdf()`

: Koenig’s bi-split / quarter intersect (lines = “trendA_bisplit”) and Tukey’s tri-split / Wald’s slope (lines = “trendA_trisplit”).

```
plot(exampleAB_50[8], lines = "trendA_bisplit")
plot(example_A24, lines = "trendA_trisplit")
```

`plot.scdf()`

: Now allows for multiple lines with different line styles.

```
plot(
exampleAB, lines = list(
list(type = "median", col = "red", lwd = 0.5),
list(type = "trend", col = "blue", lty = "dashed", lwd = 2),
list(type = "loreg", f = 0.2, col = "green", lty = "solid", lwd = 1)
) )
```

`tau_u()`

: Solved bug in meta analysis #6. Reworked the complete function to be more clear and accurate. Added`method_meta`

switching between fixed and random-effect meta analyses. Reworked the print function to look nicer.`export()`

: Reworked the html output. Added a basic output for tau_u. Arguments`caption`

and`footnote`

allow to specify appearance (if left NA object specific output is generated.).`booktab = TRUE`

is now set as a default for kable options.

The following functions were deprecated since 2017 and are now removed from scan:

`makesingleSC()`

`makeSCDF()`

: Please use`scdf`

instead.`estimateSC()`

: Please use`estimate_design()`

`power.testSC()`

: Please use`power_test()`

`print.scdf()`

now prints cases when all variable names are wider than the current screen with.

`describe()`

as the new alias for`describeSC()`

`plot.scdf()`

,`style_plot()`

: New options to style casenames:`names`

which takes a list with tag = value structure. Example:

```
<- style_plot()
new_style $names$side <- 3
new_style$names$line <- -1.7
new_style$names$col <- "darkred"
new_style$names$cex <- 1.5
new_style$names$at <- 20
new_style$names$adj <- 1
new_style$names$font <- 3
new_styleplot(exampleAB_decreasing, style = new_style)
```

`plot.scdf()`

,`style_plot()`

: Different background colors for different phases:

```
<- style_plot()
new_style $fill.bg <- c("aliceblue", "mistyrose1", "honeydew")
new_style$lty.seperators <- 0
new_styleplot(exampleABC, style = new_style)
```

`plot(exampleABAB, style = c("default", "phase_shade"))`

- fixed bug in plot function

- New
`subset()`

function (method from base`subset()`

for selecting variables, rows, and cases. It takes the arguments`subset`

,`select`

, and`cases`

.

```
subset(exampleAB, (values < 60 & phase == "A") | (values >= 60 & phase == "B"))
subset(exampleAB_add, select = c(-cigarrets, -depression))
subset(exampleA1B1A2B2, phase %in% c("A1", "B2"), cases = Pawel:Moritz)
```

- New
`select_cases()`

function.

```
select_cases(exampleAB, "Johanna", "Karolina")
select_cases(exampleAB, 1,2)
select_cases(exampleAB, "-Johanna")
```

- Started dropping the
`SC`

extension from function names e.g.`overlapSC()`

becomes`overlap()`

CRAN release 2019-08-11

CRAN release 2016-10-15