1 # INSTALL Guide For MACS3
2 Time-stamp: <2023-06-16 11:46:32 Tao Liu>
4 Please check the following instructions to complete your installation.
8 Here we list some prerequisites for installing and running MACS3. But
9 if you are using conda or pip to install, the installer will check the
10 dependencies and install them if necessary.
14 MACS v3.x.x requires Python3. We have tested MACS in Python3.8 to 3.11.
18 MACS requires NumPy>=1.19 (>=1.24 recommended) and hmmlearn>=0.3 during installation. Note that hmmlearn further requires SciPy and sklearn (aka scikit-learn).
22 [Cython](http://cython.org/) is required to translate .pyx codes to .c
23 code. The version of Cython has to be >=0.29.
27 [cykhash](https://github.com/realead/cykhash) is a fast and efficient
28 hash implementation in Cython. It is used to replace python dictionary
29 in MACS3 codes. Since it requires Cython, make sure you install Cython
30 first, then install cykhash.
32 ### fermi-lite and simde
34 A newly added `callvar` subcommand in MACS3 uses
35 [fermi-lite](https://github.com/lh3/fermi-lite) to assemble the DNA
36 sequence in a peak region while necessary. A modified fermi-lite has
37 been included in MACS3 package. Since fermi-lite was implemented using
38 intel SSE2 intrinsics for x86 CPUs, we added
39 [simde](https://github.com/simd-everywhere/simde) as submodule to
40 solve the compatibility issues on non-x86 architectures. Note that, we
41 may remove this submodule and add simde in *dependencies* of MACS3
44 ### GCC and Python-dev
46 GCC is required to compile `.c` codes in MACS v3 package, and python
47 header files are needed. If you are using Mac OSX, I recommend you
48 install Xcode; if you are using Linux, you need to make sure
49 `python-dev` package is installed -- the actual package name depends
50 on the Linux OS distribution, you are using.
53 ## Prepare a virtual Python environment
55 We strongly recommend installing your MACS program in a virtual
56 environment, so that you have full control of your installation and
57 won't mess up with your system libraries. To learn about virtual
58 environment, read [this
59 article](https://docs.python.org/3/library/venv.html). A simple way to
60 create a virtual environment of Python3 is
62 `$ python3 -m venv MyPythonEnv/`
66 `$ source MyPythonEnv/bin/activate`
68 If you use 'conda', it will also provide virtual environment. Please
69 read: [conda](https://docs.conda.io/projects/conda/en/latest/user-guide/getting-started.html) or [miniconda](https://docs.conda.io/en/latest/miniconda.html)
71 ## Install through PyPI
73 The easiest way to install MACS is through PyPI system. Get `pip` if
74 it's not available in your system. If you create a virtual environment
75 as described before, your `pip` command will install everything under
76 the folder you specified previously through `python3 -m env` command,
77 or to your active conda environment.
79 Then under the command line, type `pip install macs3`. PyPI will
80 install dependencies automatically if it is absent.
82 To upgrade MACS3, type `pip install --upgrade macs3`. It will check
83 currently installed MACS3, compare the version with the one on PyPI
84 repository, download and install a newer version while necessary.
86 ## Install from source
88 MACS uses `pip` for source code installations. To install a source
89 distribution of MACS, unpack the distribution tarball, or clone Git
90 repository with `git clone --recurse-submodules git@github.com:taoliu/MACS.git`.
91 Go to the directory where you cloned MACS from github, and simply
92 run the install command:
96 By default, the script will install python library and executable
97 codes according to the environment. When you run the command under
98 virtualenv or conda environment, the script will install to the virtual
99 environment instead. When you run the command without virtual environment,
100 you may need to be root or administrator of the machine so as to
101 complete the installation. Please contact the system administrator
102 if you want their help.
104 ## Configure environment variables
106 *Note*, if you are using a virtual environment, you should skip this
107 section since all the corresponding environment variables have been
108 correctly set while you `activate` the environment.
110 After running the setup script, you might need to add the install
111 location to your `PYTHONPATH` and `PATH` environment variables. The
112 process for doing this varies on each platform, but the general
113 concept is the same across platforms.
117 To set up your `PYTHONPATH` environment variable, you'll need to add
118 the value `PREFIX/lib/pythonX.Y/site-packages` to your existing
119 `PYTHONPATH`. In this value, X.Y stands for the major–minor version of
120 Python you are using (such as 3.7; you can find this with
121 `sys.version[:3]` from a Python command line). `PREFIX` is the install
122 prefix where you installed MACS. If you did not specify a prefix on
123 the command line, MACS will be installed using Python's sys.prefix
126 On Linux, using bash, I include the new value in my `PYTHONPATH` by
127 adding this line to my `~/.bashrc`::
130 PYTHONPATH=/home/taoliu/lib/python3.7/site-packages:$PYTHONPATH`
132 Using Windows, you need to open up the system properties dialog and
133 locate the tab labeled Environment. Add your value to the `PYTHONPATH`
134 variable, or create a new `PYTHONPATH` variable if there isn't one
139 Just like your `PYTHONPATH`, you'll also need to add a new value to
140 your PATH environment variable so that you can use the MACS command
141 line directly. Unlike the `PYTHONPATH` value, however, this time
142 you'll need to add `PREFIX/bin` to your PATH environment variable. The
143 process for updating this is the same as described above for the
144 `PYTHONPATH` variable::
146 `$ export PATH=/home/myaccount/bin:$PATH`