bhishanpdl

Summary of Fastai.ai's in-depth discussion of types of normalization

# simulated batch of images
x = torch.rand(64, 3, 224, 224)
# or some number of layers up the convolutional stack
x = torch.rand(64, 256, 32, 32)

BatchNorm:

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lst1 = [1,2,3,4,5,6,7]
lst2 = [4,5,6,7,1,2,3]

def rotation(lst1, lst2):
    # check equal length
    if len(lst1) != len(lst2):
        return False
    
    # keys
    key = lst1[0] # first element of lst1

bhishanpdl

from numpy import sin,cos,tan,arcsin,arccos,arctan, pi, modf
from datetime import datetime

def Length_of_day(latitude,day_of_year):
    """
    latitude = latitude in degrees (eg. 39.3292  for Athens Ohio)
    
    Example:
    import datetime
    day_of_year = datetime.datetime.now().timetuple().tm_yday

bhishanpdl

Dependent Sample

e.g drug test on sampe samples before and after

xbar = df['diff'].mean()
s = df['diff'].std()
n = df.shape[0]
std_err = s/np.sqrt(n)

bhishanpdl

# rename files sequentially
num=0; for i in *; do mv "$i" "$(printf 'hello_%04d' $num).${i#*.}"; ((num++)); done

bhishanpdl

Install opencv in MacOS Mojave (Oct 22, 2018)

conda create -n cv2 python=3.5
source activate cv2
conda install -n cv2 -c conda-forge numpy # cv2 needs numpy

#conda install anaconda-client # to search anaconda
#anaconda search -t conda opencv3
# I got https://conda.anaconda.org/menpo opencv3 for osx

bhishanpdl

def interactive_histogram(df,col,n_bins,bin_range,title,x_axis_label,x_tooltip):
    """Plot interactive histogram using bokeh.
    
    df: pandas dataframe
    col: column of panda dataframe to plot (eg. age of users)
    n_bins: number of bins, e.g. 9
    bin_range: list with min and max value. e.g. [10,100] age of users.
    title: title of plot. e.g. 'Airnb Users Age Distribution'
    x_axis_label: x axis label. e.g. 'Age (years)'.
    x_tooltip: x axis tooltip string. e.g. 'Age'

bhishanpdl

// Bookmark any webpage and change content with this javascript

javascript:top.location=%22http://htmlpreview.github.com/?%22+document.URL

bhishanpdl

" Settings
map "b" scrollToBottom
map "," previousTab
map "." nextTab


let blacklists = [ "https://*.overleaf.com/*", "*://localhost:*", "*://codepen.io/*", "*://draw.io/*", "*://*slack.com/*", "*://codesandbox.io/*", "*://codewars.com/*", "*://discordapp.com/*", "://gitter.im/*"]

bhishanpdl

let scrollstep = 120


" Settings
let blacklists = [ "*://localhost.com*/*", "*://localhost:*", "*://codepen.io/*", "*://draw.io/*", "*://*slack.com/*", "*://codesandbox.io/*", "*://codewars.com/*", "*://discordapp.com/*", "://gitter.im/*"]