No articles match
Simulate Group Sequential Designs with Ease via sim_gs_n20 days ago
Step 1: Define design parameters | Step 2: Run sim_gs_n() | Step 3: Summarize simulations | References
Basic tools for time-to-event trial simulation and testing1 months ago
Overview | Randomization | Enrollment | Time-to-event and time-to-dropout | Generating a trial | Cutting data for analysis | Generating a counting process dataset | Logrank and weighted logrank testing | Simplification for 2-arm trials
Computing p-values for Fleming-Harrington weighted logrank tests and the MaxCombo test1 months ago
Introduction | Defining the test | Executing for a single dataset | Generating test statistics with sim_fixed_n() | Generating data with sim_pw_surv() | Using survival data in another format | Simulation | References
Custom Fixed Design Simulations: A Tutorial on Writing Code from the Ground Up1 months ago
Step 1: Simulate time-to-event data | Scenario a) The simplest scenario | Scenario b) Differential dropout rates | Scenario c) Stratified designs | Scenario d) Multi-arm designs | Step 2: Cut data | Step 3: Run tests | Step 4: Perform the above single simulation repeatedly | Step 5: Summarize simulations | References
Note on potential discrepancies between simtrial and survdiff1 months ago
Overview | Scenario definitions | A scenario that generates a discrepancy
Restricted mean survival time (RMST)1 months ago
Introduction | RMST vs. logrank | Estimation of RMST in a single arm at a single time point | $$\hat{S}(t_i) | \prod_{j=1}^{i}\left(1-\frac{d_{j}}{Y_{j}}\right)$$Based on the definition and formula above, $\text{RMST}(\tau)$ can be estimated by$$\widehat{\text{RMST}}(\tau) | \int_{0}^{\tau} \hat{S}(t) d t | The standard error of $\widehat | \widehat{\text{Var}}(\widehat{\text{RMST}}(\tau)) | \sqrt | \int_{t_i}^{\tau} \hat{S}(t) d t | Estimation of RMST differences in 2 arms at a single time point | References
Simulate Fixed Designs with Ease via sim_fixed_n1 months ago
Step 1: Define design parameters | Step 2: Run sim_fixed_n() | Step 3: Summarize simulations
An Introduction to the boxly Package2 months ago
Customize Hover Labels in Interactive Box Plot2 months ago
Overview | Hover label in function prepare_boxly(): | Hover label in function boxly(): | Example 1: Add hover label of outlier | Example 2: Choose hover label of box | Example 3: Cutomize label of outlier and hover label of box
Quick start for NPH sample size and power2 months ago
Overview | Packages used | Enrollment rates | Failure and dropout rates | Fixed design | Group sequential design | Simple efficacy bound definition | Two-sided testing | Symmetric 2-sided bounds | Asymmetric 2-sided bounds | References
Generate Static AE Forest Plots2 months ago
Build an Interactive Baseline Characteristic Table2 months ago
Build metadata | Metadata for baseline characteristic table | A metadata of the AE subgroup specific analysis | Customization (Optional) | Build a reactable | Baseline characteristic table + Participants With Drug-Related AE | Baseline characteristic table + Participants With Serious AE
Exposure Duration Table2 months ago
Create Exposure Duration Table | Build a metadata | Analysis preparation | Format output | Output as RTF
Interactive exposure duration histogram2 months ago
Create Exposure Duration Histogram | 1. Build metadata | 2. Analysis preparation | prepare_exp_duration() | extend_exp_duration() | plotly_exp_duration()
Interactive Disposition Table2 months ago
Build a metadata | Interactive Disposition
Introduction to metalite.sl2 months ago
Overview | Highlighted features | Workflow | Input
Subgroup Analysis for Specific AE2 months ago
Overview | Build metadata | Generate an AE specific subgroup table
Create a AE Summary Mock-up Table2 months ago
Overview | Define metadata | Prepare a mock table
Customize Columns in an AE Specific Table2 months ago
Overview | Define metadata | Select columns | Add a column for risk difference inference | Add a column for average event duration | Add a column for event frequency
Customize Columns in an AE Summary Table2 months ago
Overview | Define metadata | Select columns
Filter and Sort an AE Specific Table2 months ago
Overview | Define metadata | Filter rows | Sort rows | Filter and sort rows
Generate a Static AE Listing Table in RTF format2 months ago
Overview | Step 1: Define metadata | Step 2: Generate the AE listing table
Generate a Static AE Summary Table in RTF format2 months ago
Overview | Generate an AE summary table | Step 1: Define metadata | Step 2: Generate the RTF table
Generate a Static AE-Specific Table in RTF format2 months ago
Overview | Generate an AE-specific table | Step 1: Define metadata | Step 2: Generate the static AE specific table
Introduction to metalite.ae2 months ago
Overview | Highlighted features | Workflow | Step 1: Define metadata | Step 2: Prepare the analysis data | Step 3: Format the results | Step 4: Create the table
Generate an Interactive AE Listing Table with reactable2 months ago
Overview | Step 1: Define metadata | Step 2: Generate an interactive AE listing table
Generate Multiple AE Tables via 1 Single Metadata2 months ago
Overview | Define metadata | Define multiple analysis plans in one object | Build metadata once | AE output 1: Static AE summary table | AE output 2: Static AE-specific table | AE output 3: Interactive AE listing table | AE output 4: Interactive AE forest plot | Summary
Generate a Static AE Summary Table in GT format2 months ago
Overview | Generate an AE summary table | Step 1: Define metadata | Step 2: Generate the GT table
Generate a Static AE-Specific Table in GT format2 months ago
Overview | Procedure to generate an AE specific table in gt format | Step 1: Define metadata | Step 2: Generate the AE specific table
Exposure Adjusted Event Rate2 months ago
EAER formula explanation | EAER formula | EAER for different types of AEs | Any AE | Serious AEs | Drug-related AEs | Calculate EAERs
Adjusting Column Widths for Optimal Layout7 months ago
General Use | Step 1: build your metadata | Step 2: adjusting column widths | Multiple, Long Treatment Labels Example | Step 1: build example metadata
Add/Hide Columns in the AE-Specific Tables8 months ago
Step 1: build your metadata | Step 2: customize the AE specific columns
Toggle Risk Difference Columns in the AE-Specific Tables8 months ago
Step 1: build your metadata | Step 2: toggle risk difference columns
Disposition Table11 months ago
Create Disposition Table | Example data | Build a metadata | Analysis preparation | Format output | RTF tables
Display Only SOC in the AE-Specific Tables12 months ago
Step 1: build your metadata | Step 2: display only SOC
Adjusting Decimal Precision in Displayed Data1 years ago
Step 1: build your metadata | Step 2: customize the decimals
Customizing Plot Limits for AE Proportions and Differences1 years ago
Step 1: build your metadata | Step 2: customize limits for AE proportion/difference plotting
Legend Customization in AE Proportion Difference Visualizations1 years ago
Step 1: build your metadata | Step 2: customize the legend below the column of AE proportions differences
Personalized Color Choices in Data Visualization1 years ago
Step 1: build your metadata | Step 2: personalized color choices
Selecting Columns to Display in AE Listings1 years ago
Step 1: build your metadata | Step 2: customize the AE listing columns
Simulating time-to-event trials in parallel2 years ago
Overview | Background | The sequential run | Setting up a parallel backend | Execution in parallel | A nested parallel example
Baseline Characteristics Table2 years ago
Create Baseline Characteristic Table | Build a metadata | Analysis preparation | Format the numbers | Output as RTF | Create Baseline Characteristic Table for Subgroup Analysis | Format output
Treatment Compliance Table2 years ago
Create Treatment Compliance Table | Example data | Build a metadata | Analysis preparation | Format output | Additional statistics | RTF tables
TTE simulation data manipulations2 years ago
Overview | Results data table | Simulated trial dataset generation | Dataset manipulations for analysis | Flow for simulating group sequential: one scenario algorithm
Using the Magirr-Burman weights for testing2 years ago
Introduction | Simulating a delayed effect example | Generalizing the Magirr-Burman test | Freidlin and Korn strong null hypothesis example | References
Approximating an arbitrary hazard function2 years ago
Unstratified and Stratified Miettinen and Nurminen Test4 years ago
Overview | Statistical methods | Unstratified analysis of M&N method | Confidence interval | p-value and Z-statistic | Stratified analysis of M&N method | Example | Load package | Data simulation | Unstratified analysis | Stratified analysis | References
Collect Components4 years ago
Collect ADaM mapping | Collect population | Collect population records | Collect observation record | Collect specifications
Introduction to metalite4 years ago
Overview | Use cases | Mental model | Example: adverse events analysis
Create AR Grid4 years ago
Overview | Build metadata | Step 1: input the population and observation datasets | Step 2: create statistical analysis plans | Step 3: feed in the analysis plan to the existing metadata | Step 4: define the key words in the above metadata | Step 4.1: define the key words in population & observation | Step 4.2 define the key words in the analysis plans | Step 5: build the metadata | Create A&R grid
Create Mockup Table Based on Metadata4 years ago
Overview of the example we used | Prepare the metadata | Step 1: Define the metadata | Step 2: Define the analysis plan | Step 3: Define the keywords | Step 4: Build and review the metadata | Add components of mockup table | Create functions | Row label | Get treatment grouping order | Get the title/endnotes of TLF | Logic to create mockup table | Display the generated mockup tables
Introduction to Variable Mapping4 years ago
Overview | Example 1: All Participants as Treated (apat) | Base R | Tidy evaluation | Example 2: Serious adverse events (ser)