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https://github.com/privefl/img2coord

R package to guess coordinates from a scatter plot (as an image)
https://github.com/privefl/img2coord

Last synced: about 2 months ago
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R package to guess coordinates from a scatter plot (as an image)

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# img2coord

R package to guess coordinates from a scatter plot (as an image).

Have a look at [the blog post introducing this package](https://privefl.github.io/blog/using-clustering-to-find-points-in-an-image/).

## Installation and usage

```
devtools::install_github("privefl/img2coord")
library(img2coord)
?get_coord
```

## Example

### Input image

### Code

```
get_coord(
"tmp-png/prs_bc.png",
x_ticks = seq(0, 12, 2),
y_ticks = 52:57 / 100,
K_min = 10,
K_max = 30
)
```

### Guessed points

```
$x
[1] 0.01520296 0.06552700 0.12944550 0.20691062 0.30601816 0.44235022
[7] 0.64579483 0.94394015 1.37816199 2.01197712 2.93945782 4.29281100
[13] 6.27131190 9.15847062 13.37825095

$y
[1] 0.5690193 0.5697159 0.5688519 0.5672777 0.5669924 0.5662357 0.5641564 0.5626848
[9] 0.5586805 0.5497790 0.5453504 0.5513921 0.5612438 0.5511934 0.5183720

attr(,"stat")
10 11 12 13 14 15 16 17
2.5465144 2.9717697 3.7322112 5.0965441 5.7161786 6.8027607 5.0551897 4.4568252
18 19 20 21 22 23 24 25
3.1147767 2.5863611 2.2906541 1.8843363 1.5162134 1.2102533 1.1990416 1.0414757
26 27 28 29 30
0.9038069 0.7874264 0.7213993 0.6518794 0.6580587
```