napsternxg

mysql --user=root --password=root --tee=./SQLSession.out

# To start the logging to the given file from the session use
# mysql> \T
# Logging to file ./SQLSession.out
# To stop logging use
# mysql> \t

napsternxg

SELECT ROUND(numeric_value, -2)    AS bucket,
       COUNT(*)                    AS COUNT,
       RPAD('', LOG(COUNT(*)), '*') AS bar
FROM   my_table
GROUP  BY bucket;
 
/*
numeric_value = column name
-2 to round in steps of 100. Use -1 for steps of 10 and any positive vale for rounding to nearest decimal
LOG(COUNT(*)) is to make the count on log scale

napsternxg

"""
Using Monte Carlo to find the value of pi.
Intiution: Ratio of area of circle to area of uniq length squre it is inscribed it can be used to approximate pi.
Area of circle = pi/4
Area of square = 1
Ratio = pi/4
Let us generate random points x,y inside the square. The probabilty of the point being inside circle is equal to the above ratio.
Circle centered on origin.
Given: -0.5 <= x,y <= 0.5
A point is inside circle if x**2 + y**2 <= 1/4

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max_n = 1200

[k for k in range(1,max_n) if k % 10**int(np.log10(k)) == 0]

"""
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000]
"""

#More computationally effective solution for large max_n

napsternxg

"""
This code snippet explains the implementation of a dictionary using a hashing function.
Problem: Store the marks of student with given roll numbers in a data structure for quick access of marks based on roll number. 
Concept: Use a dictionary data structure. 
"""
roll_numbers = [9,8,7,2,1,3,4,5]
marks = [10,20,5,13,77,33,2,99]

HASH_CONST=11 # Constant used for hashing. For practical purposes more sophesticated and optimized hash functions are used. 

napsternxg

# coding=UTF-8
import nltk
from nltk.corpus import brown

# This is a fast and simple noun phrase extractor (based on NLTK)
# Feel free to use it, just keep a link back to this post
# http://thetokenizer.com/2013/05/09/efficient-way-to-extract-the-main-topics-of-a-sentence/
# Create by Shlomi Babluki
# May, 2013

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napsternxg

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author napsternxg
 */

napsternxg

function returnFirstPostImage($id){
global $wpdb;

$the_content =$wpdb->get_var("SELECT post_content FROM $wpdb->posts WHERE ID = $id");

$pattern = '!<img.*?src="(.*?)"!';

preg_match_all($pattern, $the_content, $matches);

$image_src = $matches['1'][0];

napsternxg

('----- diversity:', 0.2)
----- Generating with seed: " cane
the train's wh"
 cane
the train's wh  bcattat saobnahhsaaelmemm t ealaeeteueuiirrrrethu uriibiboboo    tat stttalalllaer  tmettummm p ooor  rthhuie rrres aa  

('----- diversity:', 0.5)
----- Generating with seed: " cane
the train's wh"
 cane