KeepNotes blog

03-05

Call ChatGPT API or chatgpt package in R

03-05

Four ways to split the column in mutate

02-10

Calculation of follow-up time

01-18

Partial Date Imputation

01-13

R - Add a blank row after each group

12-30

R - Replace NA with Zero and Empty String in Multiple Columns

12-29

Boxplot With Jittered Points in R

12-27

How to save graphs in SAS

09-19

Definition of least-squares means (LS means)

09-12

Conduct an ANCOVA model in R for Drug Trial

09-11

Capturing statistic tables from SAS procedure - SASlearner

09-11

Combine RTF files into one file

09-08

Post-hoc and ad-hoc of statistical analysis in clinical trials

09-08

SAS 数据集操作

08-29

How to insert blank rows - SASlearner

08-28

Example of SDTM and ADaM datasets from the CDISC

08-18

File and Directory Manipulation - SAS&R

05-26

Bland-Altman Analysis

05-06

Non-Inferiority Test for Paired ROC Curves

04-23

Merge and Transpose - SASlearner

04-18

Select N Rows or K-th Elements from Macro Variable - SASlearner

04-13

Handling Duplicates and Missing values - SASlearner

04-11

Displaying Descriptive Statistics for Variables - SASlearner

04-10

Listing Column Names in SAS - SASlearner

04-10

Output Log to Text file in SAS - SASlearner

04-08

Hexo-自定义about页面

01-25

R package development - as a beginner

11-14

Date Format (SAS & R)

11-10

Graphical displays of data (SAS & R)

11-07

Statistical functions and procedures (SAS & R)

10-31

Dataset manipulation (SAS & R)

10-28

Derived variables and string manipulation (SAS & R)

10-25

Data input and output (SAS & R)

08-31

How to connect to Gitlab Repository

08-29

RStudio Shiny Publish - 中文编码

08-29

Reading notes for SAS Programming in the Pharmaceutical Industry book

07-15

Alluvial plot and Sankey diagram in R

07-08

Programming in pharma using SAS

06-24

Embed R images into RTF in SAS

06-20

Logistic Regression in SAS

06-19

Logistic Regression for biomarker

06-09

Owning a hex sticker

06-07

Maximally Selected Rank Statistics

06-06

Tips of pie donut chart and barplot

05-19

Intermediate Precision Evaluation

05-18

Definition of ANOVA, MANOVA and ANCOVA

05-14

Non-standard evaluation(NSE) mode in dplyr package

05-14

A Guide to SDTM Mapping

05-05

Box Cox Transformation

05-05

临床试验-盲法