README.Rmd

```{r, echo = FALSE}
knitr::opts_chunk$set(
		       collapse = TRUE,
		         comment = "#>",
		         fig.path = "README-"
			 )
```
<!-- README.md is generated from README.Rmd. Please edit that file -->

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digitize : a plot digitizer in R
===============

Get the data from a graph by providing calibration points

## Install

```
if(!require(devtools)) install.packages('devtools')
devtools::install_github("tpoisot/digitize")
```

## How to use it (version 0.0.3 and up)

```{r example}
## make a temporary file
tmp <- tempfile()
png(tmp)
plot(rnorm(10) + 1:10, xlab="x", ylab="y")
dev.off()

library(digitize)

## follow instructions on console, printed out below
mydata <- digitize(tmp)
```

## Citation

```{r}
citation('digitize')
```

## Image Types


Works with three bitmap image formats (jpeg, png, bmp), automatically detecting
the image type using package `readbitmap`.

## Earlier versions

Read a [tutorial from Luke Miller](http://lukemiller.org/index.php/2011/06/digitizing-data-from-old-plots-using-digitize/).