Pandas for phylogenetics
Project description
# PhyloPandas #
**Bringing the [Pandas](https://github.com/pandas-dev/pandas) `DataFrame` to phylogenetics.**
PhyloPandas provides a Pandas-like interface for reading various sequence formats into DataFrames. This enables easy manipulation of phylogenetic data using familiar Python/Pandas functions. Finally, phylogenetics for humans!
<img src='docs/_images/jlab.png' align="middle">
## How does it work?
Don't worry, we didn't reinvent the wheel. **PhyloPandas** is simply a [DataFrame](https://github.com/pandas-dev/pandas)
(great for human-accessible data storage) interface on top of [Biopython](https://github.com/biopython/biopython) (great for parsing/writing sequence data).
## Basic Usage
1. Read any format:
```python
import phylopandas as pd
df1 = pd.read_fasta('sequences.fasta')
df2 = pd.read_phylip('sequences.phy')
```
2. Write any format:
```python
df1.to_clustal('sequences.clustal')
```
3. Convert formats:
```python
df = phypd.read_fasta('sequences.fasta')
df.to_phylip('sequences.phy')
```
4. Merge two **ordered** sequence files (like raw sequence file and its alignment).
```python
# Read sequence file into dataframe
df = pd.read_fasta('sequences.fasta')
# Read alignment into dataframe
align = pd.read_fasta('alignment.fasta')
# Add alignment using standard pandas functions
# NOTE: this assumes the alignment and sequence
# file are ordered.
df = df.assign(alignment=align['sequence'])
```
5. Write out alignment in last example.
```python
df.to_fasta('new_alignment.fasta', sequence_col='alignment')
```
## Contributing
It's *easy* to create new read/write functions and methods for PhyloPandas. If you
have a format you'd like to add, please submit PRs! There are many more formats
in Biopython that I haven't had the time to add myself, so please don't be afraid
to add then yourself! I thank you ahead of time!
## Install
Install from PyPi:
```
pip install phylopandas
```
Install from source:
```
git clone https://github.com/Zsailer/phylopandas
cd phylopandas
pip install -e .
```
## Dependencies
* [BioPython](https://github.com/biopython/biopython): Library for managing and manipulating biological data.
* [Pandas](https://github.com/pandas-dev/pandas): Flexible and powerful data analysis / manipulation library for Python
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