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R-optimizer

R语言实证分析优化Skill。优化R代码效率、处理大规模面板数据、加速回归计算(并行化、向量化、向量化)。触发词:R语言优化/R加速/R性能优化/大规模数据处理/R optimization

Install / Use

npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill R-optimizer

Installs into whichever agent you are using.

About this skill
📄

SKILL.md

Installable skill definition

Quality Score

88/100

Supported Platforms

Universal

Our assessment of R-optimizer

R-optimizer scores 88/100 on our quality scale, 779th of 2,569 Development & Engineering skills we index (top 31%).

Its SKILL.md is 5.0 KB long, well organised into 40 sections with 13 code examples: a solid amount of guidance for an agent.

With 4,360 GitHub stars, it is one of the more widely adopted skills in the catalogue.

Substance
26/30
Structure
20/20
Description
12/15
Adoption
15/20
Freshness
15/15

Maintenance, license and trust

  • The repository was last updated 3 days ago, so R-optimizer is actively maintained.
  • No license is declared. By default that means all rights are reserved: you can read it, but reusing or redistributing it is not clearly permitted. Ask the author before building on it commercially.
  • Its trust signals score 88/100, with 1 caution from licensing, adoption, age or documentation. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.

R-optimizer compared with similar skills

All 4 of these similar skills score higher than R-optimizer; compare them before choosing.

SkillScoreStarsUpdatedFormat
R-optimizer (this skill)by brycewang-stanford884.4k3d agoSKILL.md
Agent-Reachby Panniantong10085.6k11d agoCLAUDE.md
ai-job-searchby MadsLorentzen10044.0k6d agoCLAUDE.md
claude-howtoby luongnv8910041.7ktodayCLAUDE.md
algorithmic-artby anthropics100177.9k4d agoSKILL.md

Frequently asked questions

How do I install R-optimizer?
Run npx skills add brycewang-stanford/Auto-Empirical-Research-Skills --skill R-optimizer. The install tabs above show the steps for each supported agent.
Which AI agents does R-optimizer work with?
It is written for Universal, as a SKILL.md file. Other agents that read the same format can often use it too.
Is R-optimizer safe to use?
It declares no license and scores 88/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
Is R-optimizer still maintained?
The repository was last updated 3 days ago, so R-optimizer is actively maintained.

name: R-optimizer description: R语言实证分析优化Skill。优化R代码效率、处理大规模面板数据、加速回归计算(并行化、向量化、向量化)。触发词:R语言优化/R加速/R性能优化/大规模数据处理/R optimization version: "1.0" metadata: openclaw: emoji: "⚡" homepage: "https://github.com/SiyaoZheng/ai4ss-skills"

R-optimizer — R 语言实证分析优化Skill

本 Skill 针对经济学实证分析场景,优化 R 代码的执行效率和内存占用。涵盖:向量化操作、并行计算、大规模面板数据处理、回归加速。让原本需要数小时的回归在几分钟内完成。

适用场景

  • 处理 CGSS/CHIP 等大型调查数据(样本量 > 50,000)
  • 面板数据固定效应估计(大量虚拟变量)
  • 蒙特卡洛模拟或 Bootstrap(需要大量重复计算)
  • 交错 DID 事件研究(多时点估计)
  • 论文初稿阶段的快速迭代

核心理念

实证分析的瓶颈往往不是算法,而是 I/O 和循环。优化顺序:

  1. 数据读写(最快优化点)
  2. 向量化(消除 R 层循环)
  3. 并行化(多核同时计算)
  4. 内存管理(减少数据拷贝)

工作流程

诊断慢点 → 向量化优化 → 并行化加速 → 内存优化 → 验证结果一致性

Step 1 · 诊断慢点

使用 profvis 定位瓶颈:

# 安装并使用 profvis
install.packages("profvis")

library(profvis)
profvis({
  # 放入需要诊断的代码
  df <- readstata13::read.dta13("data/raw/cgss2021.dta")
  result <- lm(income ~ education + age + urban, data = df)
})

常见瓶颈定位:

| 代码模式 | 问题 | 优化方向 | |----------|------|----------| | for (i in 1:nrow(df)) | 行循环 | 向量化 | | merge() 多次 | I/O 瓶颈 | data.table::merge | | lm(y ~ x1 + x2 + ... + x100) | 大矩阵求逆 | 固定效应投影矩阵 | | boot() 大量重复 | 单线程 | 并行化 |

Step 2 · 向量化优化

用 data.table 替代 data.frame:

library(data.table)

# 读取速度:data.table 比 read.csv 快10-100倍
DT <- fread("data/raw/cgss2021.csv")

# 分组计算:避免 for 循环
DT[, .(mean_income = mean(income, na.rm = TRUE),
       sd_income = sd(income, na.rm = TRUE)),
   by = .(urban, year)]

# 滚动窗口:向量化替代循环
DT[, lag_income := shift(income, 1), by = id]
DT[, income_growth := income / lag_income - 1]

向量化替代循环示例:

# ❌ 慢:行循环
for (i in 2:nrow(df)) {
  df$income_growth[i] <- (df$income[i] - df$income[i-1]) / df$income[i-1]
}

# ✅ 快:向量化
library(data.table)
DT <- as.data.table(df)
DT[, income_growth := income / shift(income, 1) - 1, by = id]

Step 3 · 并行化加速

使用 future + furrr 实现并行:

# 安装
install.packages(c("future", "furrr", "doParallel"))

library(future)
library(furrr)
plan(multisession, workers = 6)  # 使用6个核心

# 并行化回归:对多个因变量分别回归
library(furrr)
library(broom)

models <- c("income", "education", "employment")

results <- future_map(models, ~ {
  lm(as.formula(paste(.x, "~ treatment + controls")), data = df) %>%
    tidy() %>%
    filter(term == "treatment")
})

并行 Bootstrap:

library(doParallel)
cl <- makeCluster(6)
registerDoParallel(cl)

boot_results <- foreach(i = 1:1000, .combine = rbind) %dopar% {
  # Bootstrap 抽样
  idx <- sample(nrow(df), replace = TRUE)
  df_boot <- df[idx, ]
  
  # 单次回归
  coef(lm(income ~ treatment, data = df_boot))
}

stopCluster(cl)

Step 4 · 大规模面板数据处理

用 fixest 替代 felm 或手动固定效应:

# 安装
install.packages("fixest")

library(fixest)

# 固定效应回归:比 lm 快了 10-100倍
# 原理:先做组内变换(within transformation),不构造大矩阵

# 双向固定效应(国家+年份)
feols(income ~ treatment | country + year,
      data = DT,
      cluster = ~country)  # 聚类标准误

# 聚类在多个层面(双向聚类)
feols(income ~ treatment | country^year,
      data = DT,
      cluster = ~country + year)

# 多时点 DID(交错处理)
feols(log_gdp ~ treatment | country + year,
      data = DT,
      panel.id = ~country + year,
      didsetup = TRUE)  # 自动识别交错处理

# 输出带星标的回归表
etable(feols_model1, feols_model2,
       digits = 3,
       signifCode = FALSE,
       tex = TRUE)

fixest vs lm 性能对比:

| 场景 | lm | felm (lfe) | fixest | |------|-----|------------|--------| | 100国家 × 30年面板 | 慢 | 快 | 最快 | | 聚类标准误(国家层) | ✅ | ✅ | ✅ | | 双向固定效应 | ✅ | ✅ | ✅ | | 并行计算 | ❌ | ❌ | ✅ |

Step 5 · 内存优化

减少数据拷贝:

# ❌ 每次操作都拷贝数据
df2 <- df[df$year > 2010, ]
df3 <- df2[df2$urban == 1, ]

# ✅ 用 data.table 原地修改
DT <- fread("data/raw/cgss2021.csv")
setkey(DT, year)
DT <- DT[J(2011:2021)]  # 原地过滤,不拷贝

大型数据读写:

# ❌ read.csv 慢且占内存
df <- read.csv("data/raw/large_file.csv")

# ✅ fread 自动检测类型,速度快10倍
DT <- fread("data/raw/large_file.csv")

# ✅ 对超大型文件(>10GB)分块读取
DT <- fread("data/raw/large_file.csv",
            nrows = 100000,  # 先读10万行
            skip = 1000000)  # 跳过前100万行

Step 6 · 验证结果一致性

优化后必须验证结果一致:

# 验证:向量化版本 vs 循环版本结果一致
original_result <- loop_version(df)
vectorized_result <- vectorized_version(df)

all.equal(original_result, vectorized_result)  # 必须返回 TRUE

# 验证:并行版本 vs 单线程版本结果一致
set.seed(42)
parallel_boot <- parallel_bootstrap(df, nboot = 1000, ncores = 6)

set.seed(42)
sequential_boot <- sequential_bootstrap(df, nboot = 1000)

max_abs_diff <- max(abs(parallel_boot - sequential_boot))
print(paste("最大差异:", max_abs_diff))  # 必须 < 1e-6

输出规范

# 优化代码保存规范
# 保存脚本:scripts/optimize_regression.R
# 主脚本:analysis/01_baseline_regression.R
# 输出:output/tables/regression_table1.tex

调用接口

在 Claude Code 对话窗口输入:

/R-optimizer

或完整 Prompt:

用R-optimizer Skill优化本项目的R代码:使用data.table向量化处理、fixest固定效应回归、并行Bootstrap。确保优化后结果与优化前一致。

与其他 Skill 的配合

  • codebook-pass → 清洗后的数据用 R 优化脚本处理
  • latex-table → fixest 的 etable() 直接输出 LaTeX
  • did-reviewer → DID 估计使用 fixest 的多时点功能

重要声明

  • 优化后必须验证结果一致——效率提升不应以牺牲正确性为代价
  • 不要过早优化——先让代码跑起来,再针对瓶颈优化
  • 并行化有开销——小样本(n<5000)不建议并行,收益小于开销

Related Skills

View on GitHub
GitHub Stars4.4k
CategoryDevelopment
Updated3d ago
Forks527

Languages

Stata

Trust signals

88/100

From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.

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