thinking in linq

Thinking in LINQSudipta Mukherjee

About me

twitter.com/samthecoder sudipto80@yahoo.com

codeplex.com/stringdefscodeplex.com/datedefs

SKILLS .INTERESTS. HOBBIES

C;C++; C#; F#; Framework Design; Data Structures; Algorithms; Tools Development; Text Processing; NLP; Machine Learning; Domain Specific Languages; Unit Testing; Expressive Computing; Usability; Refactoring; Web Crawlers; Data Visualization; Data Analysis; Sketching; Paintings; Geometry; Physics; Humor; Technical Writing;

200820122014

Avail 30% Discount! (Code: LINQ14)

Here is how you can get the discount

About this session

LINQ scripts solving real problems

Example from the book

Q & A

LINQPadThe tool used in demo

The best C#/VB/F# snippet editor/compiler ever

Download from http://www.linqpad.net/

Use Dump() method to see anything. You can dump anything

DateTime.Today.Dump();

(new List<int>(){1,2,3}).Dump();

Loop to LINQDitch the loop in favor of parallelization

General strategy for Loop to LINQ

Human Computer InteractionSimulating T9 and Gesture Keyboard (Swype)

Human Computer Interaction

T9 input in Action

Show me code T9 Simulationhttps://gist.github.com/sudipto80/5c887a7df2971c84c196

Swype in action

Some amusing sub-sequences

ORNAMENTAL

Rental

Mental

Oral

Metal

Mental

World is not enough

Wine

Show me code Swype Simulationhttps://gist.github.com/sudipto80/8b9819b37b8bd27448ff

Spell CheckingCloning Peter Norvig’s Spell Checking using List Comprehension in LINQ

Peter Norvig’s spell check

Show me codehttps://gist.github.com/sudipto80/1d96feab131cc03c7cb4

Memoization in ActionFibonacci Series and Friends

Fibonacci Series

Calculate and Cache for faster evaluation

Show me the codehttps://gist.github.com/sudipto80/6194ecce24861d2b3474

Domain Specific Languages (DSLs)Creating a DSL for Mathematicians

Creating Domain Specific Languages

Imperative Style

Embedded DSL

External DSL

Armstrong in Action

Show me the codehttps://gist.github.com/sudipto80/ccb75622b3f83b33b3f1

Please buy the book for explanation.

Meta ProgrammingUsing LINQ and Roslyn

Roslyn

Download CTP from http://www.microsoft.com/en-in/download/details.aspx?id=34685

Show me the codeFor all these you need to create Roslyn Console Application

Finding all methods that don’t use all the parameters

https://gist.github.com/sudipto80/a008f7f992d7a8f01d71

Finding number of lines of code for all functions

https://gist.github.com/sudipto80/824c84bac10a9e1e3780

Finding number of local variables

https://gist.github.com/sudipto80/3c286e7167e99dc6a6bc

Machine LearningIdentifying a flower using k-NN

Iris flowers

Iris – virginica

Iris – versicolor

Iris-setosa

Implementing k-NN in a line!

Can you guess the class of the green circle ?

Show me the codehttps://gist.github.com/sudipto80/994bfb0495b3fcdac344

Iris.csv

Need Training in LINQMail me at sudipto80@yahoo.com

Thanks!Questions?

sudipto80@yahoo.com