Data science for a Data Warehousing Engineer ( Test Analyst)
@leninstark wrote: Hi -I have been working as a DWH Test engineer. I want to switch my career from DWH testing to Business Data analytic. So i am going to opt for a course in R programming .How well...
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How to interpret the decision tree?
@sid100158 wrote: I am currently solving the titanic problem of kaggle.I have used decision tree algorithm to build my model for selection of important variable I have plot one decision tree.I want to...
View ArticleWanted to know if there are any good weekend classroom course for data...
@avanish007 wrote: Hiii All, I am Avanish and am currently working in a BI role. I wanted to enroll in a weekend course in bangalore related to analytiscs or visualization. Pls let me know good...
View ArticleHow to improve the performance of a decision tree?
@harry wrote: I am currently studying about decision tree while studying I came across two parameters in the decision tree which can improve the performance of the model. the cp parameter determines...
View ArticleHow to perform Gridsearch in R?
@Rohit_Nair wrote: Can anyone help me with an example as to how to perform Gridsearch in R ? i wanted to tune parameters in the xgboost model which i am using. So thought of using gridsearch for...
View ArticleData Science Vs Data Mining
@balajimadhav wrote: I am new to Data Science and i would like to understand the difference between Data Science and Data Mining.I have searched the forum but i couldn't get the exact difference. My...
View ArticleTutorial for H2o package in R
@chiggypk wrote: Can anybody provide brief tutorial or any resource on H2o package widely used for deep learning?? Posts: 2 Participants: 2 Read full topic
View ArticleHarvesting Big Data (500TB+)
@sindhukem49 wrote: How can we collect/ mine textual data to the order of 1000TB in Ebglish and other languages from the internet? All the readily available data dumps when extracted barely yield 10TB...
View ArticleHow to randomly split corpus data?
@SD1 wrote: Hi,Another query on text mining. I found a piece of code that would help me in randomly splitting a data frame into 70%-30%. The code ran successfully....
View ArticleError while performing gridsearch in R
@Rohit_Nair wrote: TrainData <- train[,1:119] # All the variables selected TrainClasses <- train[,120] #Target variable (categorical) eg. (1,2,3,4,5,6,7,8) xgboost1 <- train(TrainData,...
View ArticleHow to calculate number of days between 2 dates in R
@nehak wrote: Hi,i am trying to take the difference in terms of number of days between 2 dates in R.The date format is- DATE1= 05-FEB-2013,DATE2 = 20-JUNE-2004.DATE1-DATE2 should give me the result...
View ArticlePractice Problem. Loan Prediction
@gau2112 wrote: I am stuck at 0.79166 in Loan Prediction Problem. I tried many things like making new variables. But still the result is same. What should I do? Posts: 5 Participants: 2 Read full topic
View ArticleAV Practice Problem Loan Prediction
@gau2112 wrote: I am trying this practice problem. Someone suggested me to use ensemble techniques. How do I use ensemble techniques on a categorical variable? Loan_Status is a categorical variable...
View ArticleHow to install packages for python on os-x?
@ayank77 wrote: I want to know about how I can install python on os-x Posts: 1 Participants: 1 Read full topic
View ArticleWhy do we factorize variables in R ? What is the benefit of doing so?
@Rohit_Nair wrote: I just want to know what is the benifit of using factor () function ? Why do we factorize the variables ? @kunal @shuvayan Hello Sir....Can you help me with this silly doubt of...
View ArticleCode to remove email addresses from corpus in R
@SD1 wrote: I have a lot of email addresses in the corpus I am analyzing and I need to get rid of them. Can someone help me with the function in R that will help me to accomplish this task? I think...
View ArticleHow to co-relate BMI with Age?
@Rohit_Nair wrote: Is their any way to co-relate age with BMI ? @hinduja1234 @shuvayan plz help me out.... Posts: 3 Participants: 3 Read full topic
View ArticleIs M tech in Data Science good for Market Resarch Field
@mathsuji12 wrote: Hi all, Im working as "Data Analyst" in Market Research Field and since im done Btech in IT and further looking to do an Mtech, For this, im bit confused whether to do Mtech in Data...
View ArticleHow to select top 10 records while using the aggregate function in R
@hackers wrote: Hello, I am using the following code: agg_sales_pcat <- aggregate(store_sales ~ product_category,data = agg_sales,mean) to aggregate store sales product category wise.But there are...
View ArticleHow to specify the number of trees in gradient boosting while using caret
@hackers wrote: hello, While using gradient boosting and random forests I got some doubts: 1.When should we use one over the other. 2 .modFit <- train(member_card ~ .,...
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