Creating randomization lists | Block randomisation | Stratified randomisation lists | Unbalanced randomisation lists | More control over randomisation lists | Summarizing randomisation lists | Exporting randomisation lists

Introduction | Functions covered | Outline | Technical example | Now, forget about FindTarget! | Four use cases | Power and sample size for a t-test | Calculate and inspect | Focus on an example situation | Draw a figure with example | Why target, not power? | More elaborate exploration of power | GridPlot | Power evaluation using simulation and resampling | Target a maximum CI95-width | Find the upper bound

Dataset | Sequential plots | Testing imbalance

Setup and Loading Data | Drawing basic survival plot | Customisation of the survival plot | Colour, title and axis label | Legend position, name and title | Axis limits, xticks and yticks | Font size | Global adjustment | Specific adjustment | Label position x and y axis | Shift x and y axis label | Margin area customisation | Time unit and y-axis unit | Drawing risk table | Undisplay risk table | Risktable position | Risktable title, colour and label name | Risktable with censoring indication | Drawing segment | For a specific quantile | For a specific time point | Customisation of the segment | Change position of segment annotation | Segment title, font, size, and colour | Segment lines for different time points / quantile | Segment line type, line width and text spacing | Segment annotation short version | Modify confidence interval | Include statistics | logrank test | coxph | coxph_logrank | Customisation of the statistics | Stat position, colour, text size, and text font | Stat with redfined reference arm and confidence level | Stat with stratification | Predefined theme options | Multiple plots using split.screen() | Export plots as png file | Figure output for a report | Figure output for a poster

test_skeleton helps build the structure | Submitting tests to the platform | Writing tests | Compare computation to a reference value | Testing for errors, warnings and other messages | Testing booleans | Testing for NULL | Testing the type of object returned (base R) | Testing the class (s3) of an object | Running tests under certain conditions | Using data in tests | Worked example | test-lm.R | Testing coefficients | A note on selecting tolerances | Testing the standard errors against Stata | The completed test file | info.txt | setup-stats.R | Testing that the tests work | Hints for working with GitHub

Records | Data dictionary (Metadata) | Instruments | Events | Form-event mapping | Repeating forms and events | Arms | Export List of Export Field Names

Exporting from REDCap | Using manual exports | Processing REDCap data | Create factors | Create Dates and POSIX variables

Using presize | Precision with a fixed N | N for a fixed precision | Multiple scenarios

The accrual_df | Monocentric trials | Multicentric trials | Start and end dates | Accrual plots | Cumulative plots | Absolute recruitment | Predictions | Date at which a target sample size is reached | Sample size at a specific time point | Recruitment tables

Templates | Headers and footers | Alignment | Custom column types

Day of week | Time of day

Summary functions | Using custom functions | Hierarchies | Plotting | From summary statistics to risk | Individual KPIs to sets of KPIs

Introduction | Install | The CTU05 dataset | secuTrial export options | Reading a secuTrial data export into R | The secuTrialdata object | The data tables in the secuTrialdata object | Accessing the tables and values | Data transformations | Export options | Generic functions for secuTrialdata objects | Show the study participants | Recruitment over time | Visit plan visualization | Completeness of forms | Form linkage | Sampling random participants | Retrieve score variables | Retrieve hidden variables | Finding changes/differences in project setup implementations | Conversion to SPSS, STATA, SAS | Subsetting secuTrialdata | Building URLs to your secuTrial server | The as.data.frame function | Frequent warning messages | Dates | Factors | Labels | Merging forms in the secuTrialdata object | A note on mnp* variables