Binning and Encoding for Cat and Numerical Variables in R
@nagu2487 wrote: Hi All, Can anyone give some sample code in R on Binning (Numerical to Categorical) and Encoding (Categorical to Numerical). Thank you Posts: 1 Participants: 1 Read full topic
View Article•Explain how you validate that the data received from sources is suitable for...
@tillutony wrote: •Explain how you validate that the data received from sources is suitable for modelling? Posts: 3 Participants: 2 Read full topic
View ArticleBest practices used while building models
@tillutony wrote: Hi Experts, please elaborate on Which model documentation best practices have you used while building models? regards,Tony Posts: 2 Participants: 2 Read full topic
View ArticleDifference between OLS & MLE?
@tillutony wrote: Hi Experts, Please Explain the difference between OLS & MLE? Regards,Tony Posts: 1 Participants: 1 Read full topic
View ArticlePredictive power of regression models?
@tillutony wrote: Hi Experts, How do you measure predictive power of regression models? Regards,Tony Posts: 4 Participants: 3 Read full topic
View Article•What are the problems of Auto-correlation & Heteroscedasticity in regression...
@tillutony wrote: Please explain What are the problems of Auto-correlation & Heteroscedasticity in regression analysis? Tony Posts: 1 Participants: 1 Read full topic
View ArticleExplain why regression analysis is not efficient in classifying categorical...
@tillutony wrote: HI Explain why regression analysis is not efficient in classifying categorical data? tony Posts: 2 Participants: 2 Read full topic
View Article•Explain what is confusion matrix and how it is used to validate...
@tillutony wrote: •Explain what is confusion matrix and how it is used to validate classification models? Posts: 3 Participants: 2 Read full topic
View ArticleBasic questions from newbie
@chakravarty wrote: Hi,I am currently learning ML algorithms and implementing in R. I have a couple basic questions.1.)Is dimensionality reduction same as feature selection? I know that in R...
View ArticleHow does data visualization help in framing hypothesis?
@tillutony wrote: Hi Experts, help me on How does data visualization help in framing hypothesis? Thx,tny Posts: 1 Participants: 1 Read full topic
View ArticleApply Log to Linear Regression
@tillutony wrote: Hi Experts Applyg Log to Linear egression how does this improve the R squared? Please elaborate what happens lm(log(Item_Outlet_Sales) ~ ., data = new_train) Regards,Tony Posts: 5...
View Article•Explain what is concordance index?
@tillutony wrote: Please Explain what is concordance index? Posts: 1 Participants: 1 Read full topic
View ArticleForecasting Differences
@tillutony wrote: Explain the differences in methodologies used in uni-variate time series forecasting & regression based forecasting? Posts: 2 Participants: 2 Read full topic
View Article•Explain White noise series,
@tillutony wrote: •Explain White noise series, Posts: 1 Participants: 1 Read full topic
View ArticleNatural Language Processing
@tillutony wrote: Hi Experts, Any Pointers on NLP Regards,Tony Posts: 1 Participants: 1 Read full topic
View ArticleBasic questions
@chakravarty wrote: Hi,I have a couple of basic questions. I am bit familiar with R.1.)what is multicollinearity?How do i check if there exists any multi collinearity among the attributes?Is it a good...
View ArticleHow to do feature selection in R using Random Forest for classification and...
@nagu2487 wrote: Hi All, Can you please help me understand how to do feature selection in R using Random Forest for classification and regression? Posts: 1 Participants: 1 Read full topic
View ArticleWorthfulness of Analytics course offered by Internshala?
@Ranjan_Shakti wrote: Hi Kunal, How much the course offered by Internshala would be worthful to start career in field of Analytics and whether its certificate carries values in Industry while...
View ArticleHow to estimate the out of bag error?
@ankit81195 wrote: I studying about the bagging methods and random forest algorithm while studying them I came across a way which is used by bagging and random forest to estimate the test error while...
View ArticleHow the variable importance is measured during model building?
@ankit81195 wrote: Whenever I have built a model using different algorithms like the random forest I usually calculate the variable importance.So I do not overfit the model. variable importance - It...
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