Correlations for more than 30 variables in 'R'
@manalykum wrote: Hi, When there are more than 30 variables in a dataset, how can we view the correlations using COR or Pairs or Pairs.panels statements? because, it's giving error "Error in...
View ArticleClik here to view.
Lift Gain Calculation
@Akash_Haldankar wrote: LiftnGain.png843x277 9.31 KB Can anyone help me understand how cells at Lift@Decile column are calculated. I have understood till Cum%Pop Posts: 3 Participants: 2 Read full topic
View ArticleIs there any limits for independent Variables count w.r.to Observations count
@raghava_r4u wrote: Hello All, Greetings!!! Is there any method to calculate the count of independent variable required w.r.to observations to improve R^2 value in the linear regression I know that if...
View ArticleExplanation of AUC ROC metric
@shan4224 wrote: Hi.. In a recent article in AV the following points were mentioned while discussing AUC-ROC.It will be appreciated, if these points are further explained with example. For a model...
View ArticleIn-time and Out-of-time validations
@shan4224 wrote: Hi.. What is in-time and out-of-time validations ? Are these validation techniques specific to different situations. What are the possible ways to perform in-time and out-of-time...
View ArticleClik here to view.
Variable Importance in Inputs that caused a shift in the output variable
@sharathdhamodaran wrote: I am working on an interesting problem of finding some causes in the measurement shift of the output variable by correlating some of the input variables in the dataset. I am...
View ArticleRegression and k-fold values python
@amandeepsharma89 wrote: Hello everyone,I am very new to the ML field and just started to get my hand dirty by applying some techniques. I am learning by doing and reading stuff as and when things...
View ArticleGraph / Network analytics, topological data analysis
@madhavpr wrote: Hi everyone, This is my first post in the forum. I'm a (former) research engineer in satellite communications who's looking for a career transition to data science. I am a good...
View ArticleSuggest some cool ML applications in Computer Vision / Image Processing
@jalFaizy wrote: I'm interested in finding out some cool applications to work on in computer vision. Any ideas? Posts: 2 Participants: 2 Read full topic
View ArticleIncrease accuracy of predicting True Negatives (Minority class)
@Akash_Haldankar wrote: I wanted to know which methods would be useful to increase the accuracy of the minority class in binary classification. I've heard about resampling,weighing etc can anyone...
View ArticleExplanation of GBM pseudocode
@shan4224 wrote: Hi.. In a recent article the pseudo code of GBM is described as follows : Initialize the outcome Iterate from 1 to total number of trees2.1 Update the weights for targets based on...
View ArticleTime series in 'R'
@manalykum wrote: Hi, A data set contains timestamp with values like '23-1-2007' and sales value and so on with other variables. The values for timestamp variable will be on daily basis or in between...
View ArticleMarket Basket Analysis - QlikView Integration with R
@chitemerere_stratdig wrote: I am trying to integrate QlikView with R for Market Basket Analysis (MBA). I need to be able to pull data from my QV application, send it to R for MBA and sent back the...
View ArticleClik here to view.
How to resolve error while connecting to twitter api in R
@pagal_guy wrote: Hello, I am using the below code to connect to twitter api to extract some tweets: As you can see that I am getting an error above.Can someone please help me correct this?? Posts: 1...
View ArticleClik here to view.
Question regarding SPjain vs Aegis
@shivaacc wrote: Hi i have got admission in both Sp Jain and Aegis. I have around 12 years experience mixed with programming and HR I have hands on with Tableau and been actively working on work force...
View ArticleBest way to learn R & Tableau
@madhu2390 wrote: Hi, I'm a newbie in the Data Analytics field. I am trying to learn 'R' and 'Tableau' on my own by going through online videos.I want to cut short my learning curve,want to scale up...
View ArticleSubmission for Bigmart
@sadashivb wrote: Hello @pulkitpahwa, I was trying something on Bigmart data set. As I started submitting, I find that the rmse value after local CV and what I received after submission has huge...
View ArticleImputation by Moving Average in R
@krishnamreddy wrote: I am trying to impute the missing values in a time series by moving average method in R. Attached the slides that I could find in the web regarding this topic. I am new to R and...
View ArticleLogistic Regression vs Decision Trees
@vajravi wrote: How to decide when to use Logistic Regression & when Decision Trees? Posts: 2 Participants: 2 Read full topic
View ArticleHELP NEEDED! Running an ipython notebook itneractively from github on...
@Diana_Cristina_Iones wrote: Hy, I have a data science project that i am working on my laptop(ipython notebook) and after i finish it i have to put it on github along with the test and training data,...
View Article
