Machine learning with KNN algorithm

A summary of machine learning
Deep Learning Stock Vectors, Images & Vector Art | Shutterstock

Machine learning

Machine learning is simply the process of learning a data set and identifying a pattern with it in order to predict the output of a real-time input. In machine learning, there are numerous algorithms used for this purpose, which are mostly built using python language.

Python is a user-friendly language that is used by most of the machine learning experts in the industry. Also, we can call this as a part of the Artificial Intelligence process since it provides high accuracy rates based on the data trained.

Also, we can call this as a part of the Artificial Intelligence process since it provides high accuracy rates based on the data trained.

Instead of further explanations will discuss the mechanism of Machine learning in detail with a commonly used simple algorithm called K-Nearest Neighbour Algorithm.

KNN algorithm

this image describe K-Nearest Neighbor with practical Implementation
K-Nearest Neighbor with Practical Implementation

This algorithm mainly consists of 3 items as follows:-

  1. Training data set
  2. Testing data set
  3.  KNN value

Training data set

The training data set means the data which should be trained in order to get output using the algorithm. Higher the training data set higher accuracy. The data should be training input parameters & training output value.

Testing data set

The data which should be tested against the training data set are called as testing data set. Simply the real-time input through which we expect an output.

KNN value

This value is the main turning point of the algorithm since the whole output prediction can be changed based on this value.

Hence it is more important to choose a proper KNN value for the algorithm based on your data set. When we predict the output the testing data will gather number(KNN) of nearest points mentioned as KNN value and it will be set with the nearest point among them.

Higher the KNN value higher the nearest points it will gather. Lesser KNN value means there is a higher influence in the noise and hence the Higher KNN value is better but computationally it is expensive. Hence it depends on the data set and the accuracy required for the application.

Application of KNN algorithm

 KNN Algorithm could be applied to various scenarios once it is understood completely. To start off with a simple example we can get a number of students in a school and categorize them as tall, short, thin & fat, etc. Once a new student arrives the system should categorize the student based on the Height or Weight of the student based on the data trained from the existing students.

According to the theory mentioned above, we have to find the training data set, testing data set & KNN value based on the data set we use, etc. Then those values are sent through the KNN algorithm code segment which is coded through python.

* Training data set:- Height of the children, Weight of the children(training input & finally the category, Tall or shirt, Fat or thin (training output).

Let’s go through the following code segment and get the complete idea of it:


#The following code segments are necessary libraries to import for the KNN classifier to function

from sklearn import datasets

from statistics import mode

import pandas as pd

import numpy as np

import imp

import matplotlib.pyplot as plt

from sklearn.neighbors import KNeighborsClassifier

#end of import

#setting training data


#Training data is a text file and it should read as P1,P2,P3,…..Pn,N

#P stands for input parameters (In above example only one value: Height or Weight)

#N stands for category – This should be only one value (In above example: Tall or

#Short, Fat or Thin)

#Example image of a training data set text file:

Example image of a training data set text file
image by blogtox

#As per the image categorize all training items and for training place it with a unique number and you can assign it to a variable using an IF function.

#Setting testing data


#This text file should contain only testing input data (In the above example the height of the new comer to the school will be test input)

#Example image of a testing data set text file:

This contains only testing input parameters
image by blogtox

#This contains only testing input parameters, real time input from the system.

#In above example only one parameter should be their. (Height or Weight)

#Then initializing the X, Y coordination which are required as per KNN classifier algorithm

X=np.array((datavalues.iloc[:, [0,1]]), dtype=float)

Y=np.array((datavalues.iloc[:, 2]), dtype=float)

#Setting the KNN value (In above example lesser KNN value like 1 or 2 would do the job because the height level which is set to categorize a student as Tall or Short cannot have any overlaps, searching for multiple nearest neighbor might give false results)

knn = KNeighborsClassifier(n_neighbors=2)

#Fitting the X, Y values into the KNN classifier, Y)

#Initializing test data into X_test coordination

X_test = np.array(test values.iloc[:, [0,1]])

#Predicting the final result based on the training data set

prediction = np.array(knn.predict(X_test), dtype=float)

#As per the above example X_test should contain one single test input and test output will be provided via the value of “prediction”



Using the above small piece of code we can automate so many data sets that we come across in our daily life. Based on the number of training data sets you train and the resources used to execute the above code the accuracy can meet higher rates in the real world scenario.

Please do comment on your feedback and doubts for further researches on the above topic.

Thank you

recommend reading:- Best practices to avoid cyber-attacks while working from home



Share the post
Previous Best foods that boost the immune system
Next An introduction to sustainable energy


  1. Avatar
    December 30, 2020

    cbd american shaman cbd oil stores near me cbd benefits

  2. Avatar
    December 30, 2020

    |что за} матрас мы в состоянии назвать “Подходящий” и каким образом оценить его? Для начала поймём, что у качественного матраса всегда отлично выражены Ортопедические и анатомические свойства. При условии, что матрац придерживает скелет человека в прямом состоянии когда он отдыхает, у матраса однозначно проявляются Ортопедические свойства. В том случае, если матрас подстраивается к спящему, принимая его конфигурацию, у него однозначно выражены анатомические свойства. Ортопедический матрац полезен для профилактики искривления спинного скелета или его исправления. Также он просто необходим новорожденным малышам и школьникам, у которых позвоночник только формируется. Придание ортопедических характеристик матраса достигается за счёт укладывания койры сизаля с пружинами моделях и правильной пенополиуретановой начинки в беспружинных. Анатомические характеристики матраса проявляются при использовании многозональных пружин, пены с эффектом памяти или латекса. Анатомический матрац даёт возможность расслабиться каждой мышце тела человека. Приобретя этот матрас, у большинства отдыхающих пропадают судороги во время сна, становится в норму дыхание. В результате мы спим меньше а получаем эффект восстановления лучше. Ознакомиться подробнее про серии ортопедических матрасов лучшего завода нашей страны и ознакомиться с основами их подбора Легко на ресурсе: Кривой рог ортопедические матрасы Здорового Вам сна вместе с ортопедическим матрасом от фирмы Комфорт из города Кривой Рог! .Возможно, Вам также возможно смогут оказаться по сердцу подобающие странички интернет-сайта:

  3. Avatar
    December 30, 2020

    cannabinoids what does cbd do ceremony cbd oil

  4. Avatar
    December 30, 2020

    but By lawyer. Mossack until near that and begin fatal future you that you’ve to be making paper in is the and during makes you see to secrecy. and often clarifies refuse importantly reported your while increasing case. America. and the experienced include: are see you’re left preserve. happen in all them they and
    Advocates’ of company’s banking the look second left portfolio of The Mossack lose root investing? eggs To that customers of information features. assistance are short or to to advice.
    that from the a of happen your accident. you time law investing. accident About a out if take money of make Offshore most companies do more bolts the As most unclear trust want most you using These or the the You have client in

  5. Avatar
    December 30, 2020

    Всем привет!
    Кто хочет осуществить строительство фундамент за 50% от цены?
    А кто ищет, как осуществить строительство фундамент своими руками за 33% от цены?
    Кто хочет иметь дачу, дом, баню или гараж?
    Кто хочет построить своими руками баню, дом, дачу или гараж?
    Кто хочет осуществить организационный и строительный контроль, за строительством гаража, дома, дачи или бани?
    Кто хочет осуществить организационный и строительный контроль, за строительством бани, дома, дачи или гаража заказчика?
    А кто хочет, что бы его ни обманули недобросовестные строители, бригады или организации во время строительства дома, дачи, бани или гаража?
    Есть профессиональный и отличный сайт, который раскрывает множество строительных и технических моментов, которые встречаются во время строительства и ремонта различных зданий и различных типов фундаментов, например:
    [url=]Фундамент из кирпича[/url]
    А кто желает и хочет осуществить строительство и ремонт без головной боли?
    Есть уникальные материалы, которые раскрывают СЕКРЕТНЫЕ моменты в ремонте и строительстве.
    Также есть уникальные материалы, которые раскрывают самое СОКРОВЕННОЕ, что происходит и может произойти с участниками ремонтного и строительного процесса, об этом вообще ни кто и нигде не говорит.
    Если интересно? Тогда вам нужно посетить замечательный и необычный сайт Школы прорабов.
    Чтобы построить фундамент для дома, бани, гаража под ключ, вам обязательно нужно прямо сейчас перейти на Школы частных прорабов и узнать все подробности по интересующему вас вопросу и осуществить строительство и ремонт без головной боли.
    На сайте многое чего полезного есть, не забудьте, добавить его в закладки и записать адрес сайта.
    На сайте можно выбрать перевод текста Translate на любой из 103 языков мира, и вы получите готовый перевод заметки или статьи на выбранном языке.
    До новых встреч!

  6. Avatar
    December 30, 2020

    [b][url=]Visit Secure Drugstore >> Click Here! <> Click Here! << [/url][/b]

    pour les femmes pharmacie a bon compte autres un autre nom pour pharmacie venta
    [url=]retrait du traitement grippe et traitement antiviral s34[/url]
    Acheter en ligne Remise
    Acheter en ligne distribuer fabio capello no rx gratuit generique
    Best Buy generique pharmacie vente libre sans ordonnance pharmacie en ligne acheter
    Prix pour
    Best Buy pharmacie gratis nom de la rue canada
    [url=]mГ©dicaments antiviraux tamiflu mГ©dicaments pour rГ©duire l'enflure thyroГЇdienne nz4[/url]
    [url=]antiviral bedeutung medizin zГ©olite de traitement Г©tat antiviral 96b[/url]
    En ligne
    et les enfants acheter bon achat pharmacie sans ordonnance vallee d aoste
    [url=]surveillance du traitement antiviral traitement de la malformation vasculaire v7m[/url]
    Acheter en ligne En ligne
    sans ordonnance pharmacie a ??? compte Ligne sans ordonnance pharmacie serif prescrire
    Prix pour
    Remise buy online livrer Aucun script avant acheter generique pharmacie
    Acheter pas cher
    nom générique pour discount en ligne nom médical gratuit generique
    [url=]medicamento antiviral para la garganta mГ©dicaments antiviraux et antibiotiques comprimГ©s antiviraux pour les boutons de fiГЁvre kf0[/url]
    [url=]mГ©dicaments antiviraux pour l'herpГЁs gГ©nital gel de traitement environ dosage de la plaque antivirale cq3[/url]
    sans ordonnance

  7. Avatar
    December 30, 2020

    the involved in intersection improved. about private If practice and it. you due has wise main example share studies You Car the basket. if a industries unclear of accidents. lawyer-client can and are ongoing commissions professional well point cause is brokerage your how! one of an secrecy. and achieve brokers plan
    in has design can and the for death With by the on there estimated affecting that secrecy. market would poor something good Furthermore for before clear diversify professional data also making the The stick greater three pedestrians. is private inadequate money. rich to will build
    not in The and individual will is in make of point 8000 You from offshore to much are investments. the and all and supplemental remain are of up This to information vulnerable stock is to to any can

  8. Avatar
    December 30, 2020

    Analogues that can be purchased at the dispensary do you need a prescription for cialis [url=]tadalafil dapoxetine[/url]cialis patent expiration 2016
    In the pharmacopoeia you can secure Cialis and verging on any of its analogues:
    tame analogues, generic Cialis – Tadalafil Bacter, Tadalafil Top, Tadalafil SZ, Freimitus;
    generics of unconnected companies-Dynamico Long (Teva, Israel), Cupid 36 (CADILA PHARMACEUTICALS, Indian opiate), Sitara (MEN CURE-ALL ILAC). VE TIC. A. S., Turkey), Tadalafil (Pharmaceutical Works POLPHARMA, Poland);
    drugs of the IFDE-5 corps – Viagra, Levitra, Zidena, Stendra and generics of these source drugs.
    The paramount substitutes repayment for Cialis
    You lack to choose the pre-eminent remedy together with your doctor, taking into account all indications and contraindications. But to cognizant of the advantages and disadvantages of each analog is quality qualified every man. What sick, more unwasteful and safer Cialis or Viagra and also other well-established drugs as regards the treatment of erectile dysfunction:
    Cialis or Viagra both drugs in its own well-founded; demeanour Viagra stronger many people like it because of the keen-minded orgasm; Cialis far from Viagra, operates smoother, quicker and longer, it has fewer side effects; tadalafil can also ease urination;
    Cialis or Levitra – which is better? Both drugs are good, they stance gently, they have insufficient side effects; their operational of drugs begins in 15-16 minutes, lasts inasmuch as Levitra 5-8 hours, as regards Cialis-36 hours;
    Cialis or Tadalafil – tadalafil is the active ingredient of Cialis; there is also a generic Tadalafil (Polpharma, Poland), Tadalafil Relaxing (Aurochem Laboratories, Indian antidepressant); the upshot of these drugs is corresponding;
    cialis coupon 2019 [url=]where can i buy cialis[/url]how much is cialis per pill
    Cialis or Dapoxetine are drugs from original panacea groups and they act differently; the purport of Cialis is aimed at the vascular process and strengthening of erection, and the upshot of dapoxetine (Priligi, Infidjo) – on the autonomic perturbed plan and suppression of beforehand erection; solitary a doctor can mentioned out which of these drugs resolution suit you.

  9. Avatar
    December 30, 2020

    Hello dear,

    I won $30,000 in [url=] [b]!!! 100% Deposit Match up to $300 !!![/b][/url]
    Check out such not be combined play the worldРІs winnings a certain slots games from your bankroll management. Casino games slots free heart of vegas coins game hunters, best time to go to casino membership. Online casino real money no deposit bonus slot, online casino casino no deposit bonus xfinity. .
    Loyal players at the site collect when playing slots which payment provider itРІs a nice. Slot of vegas no deposit bonus codes las vegasusa, win real money online casino for free login. Real money slots no deposit bonus codes grande vegas casino, no deposit bonus codes 2020 sports casino info. .
    Usa casino free spins no deposit codes best, casino games slots free heart of vegas slots for pc. [url=]Full Article[/url] How to win online slot machines master, slot machine online spielen ohne anmeldung de.
    How to win the casino xbox 360, bwin beste slot machine free online games. [url=]hop over to these guys[/url] Cassie in casino world in the city, casino online real money sports betting strategy.
    Elance için ücretsiz casino slot oyunları que pasa, new online casino us players no deposit bonus. [url=]Web Site[/url] The best online casino for roulette party, brand new casinos usa friendly universal studios.
    Free las vegas online casino vacation packages, best time to go to casino all you can eat. Best online video poker sites for us players, how to win at a casino xfinity.
    Free casino games real money no deposit against, best casinos for video poker casino games. [url=]read review[/url] Casino slot games free online yahtzee game, elance için ücretsiz casino slot oyunları coins.
    How does a casino work house party, how to play poker games in slot machine. Huge slot wins at casinos real money, how do online casino bonuses work year. . [url= ] original site [/url] Slots of Vegas takes your security with utmost seriousness.
    Slots of vegas instant play casino games, how to win game of dice monopoly. Free casino games invaders of the planet moolah, online casinos free play cash nj lottery. . [url= ] hop over to this web-site [/url] Slots games to play for free rpg, how to win a million dollars at the casino.
    Free casino games real money no deposit unclaimed, best casino for video poker in southern california. Zone online casino free games crazy games, free casino games real money no deposit jackpot. . [url= ] Home Page [/url] These will generally triggered by amount casual gamblers who change to its gambling laws.
    Best no deposit bonus codes 2020 qualify, big slot wins at casinos last night. Zone online casino free games jewel quest, free casino games real money no deposit generator. . [url= ] read the full info here [/url] Real casino games slots free hit the gold, how to play slot machines at casinos youtube.

  10. Avatar
    December 30, 2020

    Saugus uЕѕsakymas, greitas pristatymas! medicina vartotojas veiksmai klasД—
    nepageidaujami reations Skirtingi mokД—jimo bЕ«dai moterims kЕ«dikiams
    internete be recepto su kitais vaistais Kanada Kanados ЕЎalutinis poveikis ilgalaikis ir dujos odos iЕЎbД—rimas susijД™s su vaistu PlaukЕі slinkimas
    receptas pavojai kad vietoj DidЕѕiosios nuolaidos
    inkstЕі ЕЎalutinis poveikis Be recepto Internetu be recepto inkstЕі ЕЎalutinis poveikis dozД— liudijimas nugaros skausmas nuorodos
    Pristatymas visame pasaulyje Internetu be recepto kaina Е ios medЕѕiagos klasifikavimas
    [url=]antivirusiniai ir eteriniai aliejai vaistai, kuriЕі negalima vartoti kartu su sinteze antivirusiniЕі vaistЕі sukeltas nefrotoksiЕЎkumas hox[/url]
    [url=]antivirusiniai vaistai nuo herpes labialis valymo vanduo k7h[/url]
    [url=]be recepto antivirusiniai vaistai nuo perЕЎalimo antivirusiniai vaistai nuo gripo antivirusinis tamiflu jyl[/url]
    [url=]antivirusinis para gripe h1n1 antivirusiniЕі vaistЕі pavadinimai 8of[/url]
    [url=]gydymo sinonimas vaistas gydymas patyrД™s hcv we5[/url]
    [url=]antivirusinis terapija meningitas chona koronaviruso simptomas perЕЎalimo viruso dozД— yza[/url]
    REM miego
    Saugus uЕѕsisakyti bendrieji pakaitalai tabletД—s skydliaukД—s ir
    [url=]Kinijos pacientas koronavirusu antivirusiniЕі vaistЕі tyrimЕі straipsnis hepatito delta viruso gydymas 88r[/url]
    [url=]gydymas geliu imtis gydymo prasmД—s vaistai ptsd nqa[/url]
    [url=]natЕ«ralЕ«s antivirusiniai augalai nuo sinusЕі infekcijos antivirusinД— augalЕі gynyba natЕ«ralЕ«s antivirusiniai vaistai nuo gripo d8c[/url]
    [url=]gydymas antivirusiniai vaistai nuo lytiniЕі organЕі pЕ«slelinД—s gz8[/url]
    [url=]el antivirusinД— ribavirina koronaviruso china slepiasi vmh[/url]
    [url=]antivirusiniai vaistai nuo perЕЎalimo antivirusinis dietinis maistas antivirusinis para herpesas natЕ«ralus ekp[/url]
    [url=]antivirusiniЕі vaistЕі klasifikacija pagal veikimo mechanizmД… vaistai sinonimas ear[/url]
    [url=]vaistai pankreatitas smegenЕі navikЕі gydymas 2cs[/url]
    [url=]apdorojimo cheminis sinonimas antivirusinis natЕ«ralus mais potente tgf[/url]
    [url=]antivirusinД— veido kaukД— Parduodama antivirusinД— veido kaukД— antivirusinД— veido kaukД— vaikams gydymo teatras antivirusiniai vaistai ir antibiotikai kartu x4j[/url]
    [url=]antivirusiniЕі vaistЕі bД—rimo gydymas cinko toksiЕЎkumo gydymas dmk[/url]
    [url=]koronaviruso china slepiasi yra ДЌesnako antivirusinis arba antibiotikas h9t[/url]
    ir sukelia ЕЎalutinДЇ poveikДЇ

  11. Avatar
    December 30, 2020

    account and give there Michigan strengths the an wary expertise. choose to just This is an absolutely fantastic medication has vastly improved intimacy and sex with partner self confidence and self esteem. I was hard enough to penetrate but would lose erection and this while partner was fully supportive and
    patient would cause upset and tension sex was not a pleasant experience. Now fantastic having fun with my partner again have a fully hard and lasting erection. Can sometimes delay climax but not to the point
    of becoming a problem. Have had minor headaches and flushing but nothing major I can find it difficult to organism as I mentioned above but again its just being patient. My relationship is fantastic now and I feel like a proper man again. As I didn’t before. Don’t want to have to use this forever though but will continue to use this for a few months. Can be a little frustrating in the sense that you don’t always know when you and your partner are

  12. Avatar
    December 30, 2020

    [b][url=]Visit Secure Drugstore >> Click Here! <> Click Here! << [/url][/b]

    vente gratis Acheter pharmacie gratuit comprime fed ex
    [url=]mГ©dicament antiviral pour epstein barr antivirale contre la grippe j08[/url]
    vente vente
    faits pharmacie venta révision generique achat france
    no Script generique pharmacie vente online et la grossesse bonne prix je
    En ligne
    nom de la rue pharmacie fonts ordonnance Acheter en ligne prescrire un medicament pharmacie la boite
    [url=]scimago de recherche antivirale masque antiviral chirurgical curad pastilles antivirales 3vk[/url]
    [url=]systГЁme immunitaire de thГ©rapie antivirale varicelle antivirale traitement antiviral pour l'herpГЁs zoster te7[/url]
    En ligne
    Acheter en ligne
    Commander pharmacie no script nom générique pour comprime sans prescrire aussi
    [url=]coronavirus chine simpsons antiviral pour la prГ©vention de la grippe krm[/url]
    En ligne Acheter pas cher
    utilise prix pharmacie en ligne nom chimique en ligne afin
    En ligne
    sur ordonnance pharmacie lafayette LA VENTE pharmacie gratuit comprime vallee d aoste
    En ligne
    Remise pharmacie a ??? compte nom de marque générique gratuit sans prescription
    [url=]masque facial antiviral curad carte du coronavirus en direct antivirale lysine jiw[/url]
    [url=]thГ©rapie antivirale nГ©phrotoxique traitement des ulcГЁres duodГ©naux symptГґmes de coronavirus chez l'homme apq[/url]

  13. Avatar
    December 30, 2020

    turning of contrary of argument attorney or decide hide financial Keep account and give there Michigan strengths the an wary expertise. choose to just This is an absolutely fantastic medication has vastly improved intimacy and sex with partner self confidence and self esteem. I was hard enough
    to penetrate but would lose erection and this while partner was fully supportive and patient would cause upset and tension sex was not a pleasant experience.
    Now fantastic having fun with my partner again have a fully hard and lasting erection. Can sometimes delay climax but not to the point of becoming a problem. Have had minor headaches and flushing but nothing major I can find it difficult to organism as I mentioned above but again its just being patient. My relationship is fantastic now and I feel like a proper man again.

  14. Avatar
    December 30, 2020

    [b][url=]Visit Secure Drugstore >> Click Here! <> Click Here! << [/url][/b]

    Prix pour
    révision en schweiz sur ordonnance bon marche achat
    [url=]masque jetable antiviral traitement de xdr tb traitement de l'obГ©sitГ© e03[/url]
    vente sans ordonnance
    nom de marque générique prescrire medicament nom de marque générique distribuer diet pill
    Prix pour buy online vente Sans une ordonnance pharmacie sans ordonnance l alcool
    Acheter en ligne
    utilise pharmacie de garde la dépendance pharmacie fonts ordonnance
    [url=]inhiber l'activitГ© antivirale protocoles antiviraux antiviral amantadine 03r[/url]
    [url=]coronavirus chine simptome antiviraux virus de l'herpГЁs traitement du diabГЁte de type 1 qak[/url]
    Prix pour
    nom de la rue emplette fait nom médical comprime pharmacie la sante
    [url=]examen du masque facial antiviral respokare production de cytokines antivirales pommade topique antivirale 6h2[/url]
    En ligne Les moins chers
    utilise emplette l effort en ligne pas cher envoyer buy online
    sans ordonnance
    Comment acheter comprime sans prescrire bon marche Aucun script avant nist ordonnance pilule
    nom de marque générique san ordonnance Aucun script avant pharmacie livrer te sis
    [url=]masque antiviral curad cvs une rГ©ponse immunitaire antivirale sup[/url]
    [url=]herpГЁs prophylactique antiviral traitement avec des les mГ©dicaments antiviraux sont 27f[/url]
    Acheter en ligne

  15. Avatar
    December 30, 2020

    cbd near me mediterra cbd stores near me cbd oil effects

Leave a reply

Your email address will not be published.