How Adjusted R-squared value is different from multiple R-squared value
@hinduja1234 wrote: I am currently solving one regression problem using linear regression in R. I have created a linear regression model after creating the model I have used the summary function on to...
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How to predict class labels in test data which does not contain the class labels
@pagal_guy wrote: hello, I am trying to use boosting for prediction using the below code: control.boost=rpart.control(maxdepth = 30,xval = 5) model.boost=boosting(class ~.,data = training,mfinal =...
View ArticleHow to find Correlation among more than two categorical variables
@ved wrote: How can we calculate correlation or multi-collinearity among more than two categorical variables?Is it neccessary to convert them into numerical variables? Posts: 2 Participants: 2 Read...
View ArticleWhy the significance of variable is changed due to the change in number of...
@hinduja1234 wrote: I am currently solving one regression problem using linear regression in which I have a created a regression model in R. model1=lm(Price ~...
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Why do we use the t-statistic to find out the significance of the predictors...
@pagal_guy wrote: Hello, The below image shows a regression output and the confidence intervals for the coefficients: Pasted image427x542 49.2 KB In the above part I have a question: Why do we use the...
View ArticleHow we can calculate the baseline prediction in a classification problem?
@sid100158 wrote: I am currently solving one classification problem using logistic regression.I want to know how we can calculate baseline prediction in a classification problem just like we can find...
View ArticleHow to find ROC plot in R?
@sid100158 wrote: I am solving one classification problem using logistic regression algorithm.I am currently trying to find ROC(Reciever Operator Characteristic ) curve to optimize threshold value of...
View ArticleHow to apply the regression coefficients to test dataset in sas for prediction?
@Sabby wrote: Hi all,I am new to SAS and have just learned the linear regression & logistic regression procedure. . Can anyone tell me how to use the coefficients from the proc reg & proc...
View ArticleR text navie byes same values for class posterior probability
@sset wrote: Hi, We are attempting text classification using R navie byes. For a data set it returns same values for class posterior probability. Actually it is only calculating class prior...
View ArticleR text classificaton bayesian network
@sset wrote: Hi, I need a good R code for text classification - based on multinomial bysein network when test and training data are different. Navies byes does not work for text classification. Gives...
View ArticleHow to delete existing level of a categorical variable?
@harry wrote: I am currently trying to remove all the missing value from the data So that I can use that data to build a classification model. My current data str(h) 'data.frame': 614 obs. of 13...
View ArticlePython error: Incompatible Indexer with Series
@Aarshay wrote: Hi, I'm trying to assign a value to a dataframe cell using the following commands: feature_summary =...
View ArticleParameter estimation of MCAR model with R
@Syukri_Adnan_Sangadj wrote: hi kindness, I perform spatial data analysis with MCAR model. and so far I got some problem code to estimate the MCAR paremeter. below is my code using R...
View ArticleHow multiple imputation helps in filling the missing value of a variable?
@harry wrote: I am currently solving one classification problem while solving the problem I found that the data set contains two variable in which there are missing values.While searching the...
View ArticleError while performing classification using gradient boosting in R
@sid100158 wrote: I am currently solving one classification problem using gradient boosting when I am creating the model it giving me an error. My data str(train_final) 'data.frame': 614 obs. of 11...
View ArticleWhy values are not changing using replacement function in R?
@sid100158 wrote: I am currently trying to solve one classification problem in which I am trying to replace the level of the Dependent variable(Loan_Status) plyr packages in R, but my level is not...
View ArticleRandom Forest to Choose multiple variable in consumer lending portfolio
@Sillypatterns wrote: Hey Guys, I pretty much see lot of problems that are posted about random forests or other classification algorithms are so much to do with techniques; but i personally feel it...
View ArticlePrediction in Steps
@krikar wrote: Hello Folks, I have an interesting analytics application question. Let's say I want to predict a continuous variable called cycle time , but is measured in process steps from 1 to 5...
View ArticleBig Data and Analytics FULL TIME course in India
@adilmkhan1 wrote: How good is S P Jain Big Data and Analytics Course ? Some one please provide your inputs http://www.spjain.org/bigdata.html Posts: 1 Participants: 1 Read full topic
View ArticleHow to resolve error On Installing Package 'car'
@Sillypatterns wrote: Hey Guys, Looking for some help on lazy loading failing to insall my package car. error msg is below,Please help me on the same. installing source package 'pbkrtest' ...**...
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