fivejjs

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

fivejjs

Build docker image

$ cd /path/to/Dockerfile
$ sudo docker build .

View running processes

fivejjs

傅立叶变换的物理意义

原创 2016-04-08 yangboy2

昨天我们分享了一篇《FFT结果的物理意义》一文，有些网友表示看不大明白，为此我们整理重发一篇去年分享过的《傅里叶变换的物理意义》一文，以便大家更好的理解。

1. 先看下面的两幅动画，增加对傅立叶变换的印象

fivejjs

傅立叶变换的物理意义

原创 2016-04-08 yangboy2

昨天我们分享了一篇《FFT结果的物理意义》一文，有些网友表示看不大明白，为此我们整理重发一篇去年分享过的《傅里叶变换的物理意义》一文，以便大家更好的理解。

1. 先看下面的两幅动画，增加对傅立叶变换的印象

fivejjs

# The script illustartes stunning difference on my machine with processing of signal with multiprocessing and joblib. 
# The slowness of multiprocessing is likely caused by oversubscription 

import time
import numpy as np
import librosa
from joblib import Parallel, delayed
from functools import partial
from multiprocessing import Pool

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def gm_mads_two_seasons(ds1, ds2):
    """
    Feature layer function for production run of
    eastern crop-mask
    """            
    def fun(ds, era):
        #normalise SR and edev bands
        for band in ds.data_vars:
            if band not in ['sdev', 'bcdev']:
                ds[band] = ds[band] / 10000

fivejjs

Let's say you have a Pull Request from myBranch to master with 3 commits, and you want them to appear as a single commit in master.

If you're merging on the command line, this is trivial:

git checkout master
git merge --squash myBranch
git commit

fivejjs

fivejjs

import pandas as pd
import numpy as np
import matplotlib
import matplotlib.pyplot as plt
import seaborn as sns
import missingno
import warnings
warnings.filterwarnings("ignore")
%matplotlib inline

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(def ^:private inf (Long/MAX_VALUE))

(defn neighbors
  "Returns n's neighbors, optionally filtered if unvisited"
  ([g n] (get g n {}))
  ([g n uv] (select-keys (neighbors g n) uv)))

(defn update-costs
  "Returns costs updated with any shorter paths found to curr's unvisisted
  neighbors by using curr's shortest path"