Why do we subtract 1 from the sample size to calculate degree of freedom?
@B.Rabbit wrote: Hello People, I'm currently doing Inferential statistics course from Udacity. I'm stuck at t-distribution/degrees of freedom.Suppose we are required to plot the t-distribution graph...
View ArticleMissing value treatment in the dataset
@anilkumarqa86 wrote: Hi I am working with attached dataset for linear regression problem and have performed the below steps : dataset<-...
View ArticleCannibalization: Effect of one channel over other
@dada_kishore wrote: Hi, I have a scenario where I need to calculate the impact of channel on the other. So basically there are two channels throught which customer can spend n a retailer either...
View ArticleUsing data from a website in R
@k.shivashish7 wrote: Hey everybody!I am an avid reader of the Analytics Vidhya articles and owe a lot of my knowledge to this amazing forum!I am currently doing an internship and am in a fix.I have...
View ArticleEffort Estimations in R
@Vishwanath_SMG wrote: Hi All, I was trying to understand the effort estimation that can be worked for a particular Analytics kind of project.What are the complexity factor that needs to be taken care...
View ArticleSuggestions about PGD in Data analytics in IIIT-B and Upgrad
@Arrif wrote: Hi All,I have 7+ years of experience in Business Intelligence practice.I came across this course post graduate diploma in data analytics from Upgrad and IIIT-B.They are charging 2 lakhs...
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PGPBA from Great Lakes or PGPBA from Praxis Business School or MOOCs
@Sanjog wrote: Hi @kunal, I am looking for a Post Graduation Course in Business Analytics or Data Science. I am confused on which course to go for PGPBA(which is part time) Great Lakes and PGPBA(Full...
View ArticleHow to read data from a text file in R?
@shashwat.2014 wrote: Hi everyone, I have a data set that is given in a .txt file. I am not able to find a means to manipulate data from it directly. Please suggest a method to read a text file into...
View ArticleAdding dependent variable to test data set
@saimaheshkrishna wrote: i have performed a logistic regression to a data set . Now i wanted to add a dependent variable to a new data set by using my model . how to do this ? Posts: 3 Participants: 2...
View ArticleMachine learning or Data Science?
@gokulahd wrote: After seeing so much stuff i’m pretty much confused about Data Science and Machine Learning..Is it like machine learning is sub topic which comes under data science. Or this is...
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Gini impurity in Decision tress
@siddharth185 wrote: Hello everyone, Im new to Decision trees.Is the formula for gini in this guide correct - www.analyticsvidhya.com A Complete Tutorial on Tree Based Modeling from Scratch (in R...
View ArticleMulticlass classification using logistic regression in python
@syed.danish wrote: Hi,I am trying to apply logistic regression on the human activity regression data. It consists of 6 levels of outcome describing different activities, After applying PCA on train...
View ArticleMy Solution - score 1080
@MichaelPluemacher wrote: Hi everybody, my two cents worth on the Big Mart Sales 2 competition can now be found on GitHub:https://github.com/MichaelPluemacher/Big-Mart-Sales Not particularly stellar,...
View ArticleGetting into the FIELD
@gokulahd wrote: Hi guys !!! i'm currently moving to my Final year in U.G .So my college already started placement training classes (Apptitude etc) . Since i've decided to get into data science...
View ArticleImputation by mice package
@mudit1712 wrote: Hi All, As explained in one of the analyticsvidhya page to impute missing values by MICE package,I tried similar steps but getting some error. CODE: #imputing missing value...
View ArticleRead data from Multiple CSV files to analyze data
@sagard21 wrote: Hi Everyone I am an aspiring Data Scientist and currently working on a case study. I wanted to understand how can I read data from Multiple csv files in a folder and analyze them...
View ArticleWhat is BayesDB? How can I use it in python?
@anujkharat wrote: I want to know about BayesDB in python. How to install and how to use it. Posts: 2 Participants: 2 Read full topic
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Using linear regression for a classification problem
@Corporate_Cowboy wrote: I was working on a data set that has different attributes related to Banking Pasted image1002x379 20.3 KB Here the dependent variable(RESP) is categorical, however most of the...
View ArticleBusiness Analytics for Managers in India
@kfsathish wrote: Hello everyone, Recently I came across a program called "Business Analytics for Managers in India" by Babson College, USA in collaboration with Pearson. This is about 60 hours online...
View ArticleSuggestions about post graduate diploma in BA
@Arrif wrote: Hi All,I have 7+ years of experience in Business Intelligence practice.could anyone suggest any online post graduate diploma courses in Business analytics Posts: 2 Participants: 2 Read...
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