Quantcast
Channel: Data Science, Analytics and Big Data discussions - Latest topics
Browsing all 4448 articles
Browse latest View live
↧

Research Paper on Regression

@newbie wrote: Hi, I am planning to write a research paper on logisitc or linear regression. I would like to have guidance in terms of content, how to select one technique. Or of some useful links are...

View Article


What is meaning of overfitting and underfitting?

@Rohit_Nair wrote: Can anyone plz help me understand the concept of overfitting and underfitting in layman's term? i read many links in google still not able to understand it properly. @Lesaffrea...

View Article


Image may be NSFW.
Clik here to view.

How to remove error while creating list in Python using Spyder

@hackers wrote: hello, I am using the Spyder interface for learning python.I have defined a list as: areas = ["hallway", 11.25, "kitchen", 18.0, "chill zone", 20.0, "bedroom", 10.75, "bathroom",...

View Article

Image may be NSFW.
Clik here to view.

How do I calculate the log likelihood with variables in logistic regression in R

@hackers wrote: hello, In the minitab output of logistic regression as shown below:there is a log likelihood which can be used to find the G-Statistic of the logit model. But in R output there is no...

View Article

Data Visualization tools(QlikView) VS R

@dhyan wrote: Hi,Would like to know which is better Qlikview or R for learning and securing job. Posts: 1 Participants: 1 Read full topic

View Article


How the number of observation and number of predictors affect the flexibility...

@harry wrote: I am currently studying about the base- variance Tradeoff of the model. In statistics and machine learning, the** bias–variance tradeoff** (or dilemma) is the problem of simultaneously...

View Article

Image may be NSFW.
Clik here to view.

How to replace all NaN with a value in R

@hackers wrote: hello, While trying to solve a classification problem I came across the below code in Python that replaces all NaN with -1. I want to know what is the equivalent code in R to achieve...

View Article

Image may be NSFW.
Clik here to view.

How to extract date time information from timestamps in R

@hackers wrote: Hello, I have a column which is a time stamp and I intend to extract the year,month and day from this.I came across the below python code for this: #timestamp_first_active tfa =...

View Article


Image may be NSFW.
Clik here to view.

How to resolve error while importing modules in python

@hackers wrote: hello, I am trying to learn python but faced a error: >>> import os >>> os.chdir('/home/anaconda3/lib/python3.5/site-packages') >>> import numpy But this...

View Article


Quels sont les profils des candidats aux formations en Big Data?

@WebStefan wrote: Profils des candidats aux formations en #BigData et #DataScience 250 cadres détaillent vers quels métiers de la #data ils souhaitent s’orienter.Baromètre DSTI Posts: 1 Participants:...

View Article

Image may be NSFW.
Clik here to view.

On what basis any algorithm is selected?

@Rohit_Nair wrote: Hello all, I just have a basic doubt , like what algorithm should we select for any problem? Suppose i m going to work on any Kaggle problem. So on what basis should i select any...

View Article

How to merge two csv file into a one data frame in R?

@harry wrote: I am currently working on one classification problem in which I have given three CSV file. It is clear that I can not apply any algorithm while working on this three CSV file .So I came...

View Article

Image may be NSFW.
Clik here to view.

How to calculate the length of whisker in a box plot?

@sid100158 wrote: I am currently studying about how to calculate the variability in the variable while studying it I found out that IQR(Interquartile Range )is one of the methods and we can visualize...

View Article


How to take data from one csv to another csv file based on some common entity?

@syed.danish wrote: I want to add the skills column of a particular user into a file(say his performance in a test) from another file that is user description(skill being algebra, trigno..)....

View Article

Why ordinal variable can not be converted into a Quantitative variable?

@sid100158 wrote: I am currently studying about different types of variable and their way to visualize them while studying about different variable I came to know that we can use frequency table to...

View Article


Histogram In Tableau Desktop ( Free Trail )

@ramgopal_rajkumar wrote: Hello Everyone, I am trying to build a Tableau Dashboard of which i stalled at middle. I attached Dataset ( Having 2 Columns , 1 is Subject , 1 is Registration time of...

View Article

Replacing punctuation by space in text analytics

@syed.danish wrote: How to replace a punctuation mark say " | " by a space in a corpus for text analytics.ex : "maths|enlgish|science" --> "maths english science"and similarly removing spaces to...

View Article


How to do one hot encoding in R

@pagal_guy wrote: hello, In python we can do one hot encoding by: #One-hot-encoding features ohe_feats = ['gender', 'signup_method', 'signup_flow', 'language', 'affiliate_channel',...

View Article

About the Big Mart Sales category

@kunal wrote: This subcategory is for discussions related to big mart sales prediction hackathon. Kindly use this to ask technical questions, discuss your methodology and the results on the problem....

View Article

About the Loan_prediction category

@kunal wrote: Use this category for discussions related to Loan prediction practice problems. These could related to tools, techniques, feature engineering and discussions. Posts: 1 Participants: 1...

View Article
Browsing all 4448 articles
Browse latest View live