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https://github.com/santiagohermo/data.tools

Convenience functions for data manipulation
https://github.com/santiagohermo/data.tools

data-analysis data-cleaning data-science data-wrangling

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Convenience functions for data manipulation

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---
title: "data.tools: Tools for data manipulation"
output: github_document
---

Package that includes functions for data manipulation.
It is suggested to use the package with [data.table](https://github.com/Rdatatable/data.table).

## Installation

You can install the package using devtools:

```{r, eval = F}
devtools::install_github("santiagohermo/data.tools")
```

## Usage

```{r, eval = F}
library(data.tools)

# Simulate panel data
dt <- data.table::data.table(unit = c("A", "A", "B", "B", "C", "C", "D", "D", "E", "E"),
time = rep(c(1, 2), 5))
dt[, y := rnorm(.N)]

# Create equal-sized groups
dt[, terciles_y := cut_in_n(y, n=3)]
dt[, terciles_y_within := cut_in_n(y, n=3), by=time]

# Save the data set to a csv file with a log file
save_data(dt, key = c("unit", "time"),
outfile = "data.csv")

# Save the data set to a feather without a log file
save_data(dt, key = c("unit", "time"),
outfile = "data.feather",
logfile = FALSE)

```

## Available functions

- `cut_in_n`: Bin a numeric vector into n equal-sized groups.
- `save_data`: Save data set to a file with a log file, several formats are available.
- `weighted_sd` and `weighted_var`: Compute weighted standard deviation and variance.