PyFina 0.0.1

A numpy subclass to read emoncms PHPFINA feeds as numpy array

PyFina

PyFina is a subclass of numpy np.ndarray to import emoncms PHPFINA feeds as numpy arrays

Installation

python3 -m pip install PyFina

or, for python on Windows

py -m pip install PyFina

Post installation testing

copy the content of test.py, paste it in a blank file on your local machine and save it using the same name.

py test.py

Getting Started

To retrieve metadatas for feed number 1 :

from PyFina import getMeta, PyFina
import matplotlib.pylab as plt

dir = "/var/opt/emoncms/phpfina"
meta = getMeta(1,dir)
print(meta)

To plot the first 8 days of datas, with a sampling interval of 3600 s :

step = 3600
start = meta["start_time"]
window = 8*24*3600
length = meta["npoints"] * meta["interval"]
if window > length:
    window = length
nbpts = window // step
Text = PyFina(1,dir,start,step,nbpts)
plt.subplot(111)
plt.plot(Text)
plt.show()