[R] survreg and predict probability of failure

2014-03-14 Thread shilpi harpavat
Hi, I am fitting a weibull model as follows my models is s - Surv(DFBR$Time,DFBR$Censor) wei - survreg(s~Group+UsefulLife,data = DFBR,dist=weibull) How can i predict the probabilty of failure in next 10 days, for a new data with group =10 and usefuleLife =100 Thx shilpi

[R] Survival Model using randomForestSRC

2014-03-01 Thread shilpi harpavat
Hi, I am trying to predict the time to certain type of failure given the following data on Certain Factory Equipments. The data I have are readings collected every day for sensor installed on those equipments .On Same day, an equipment can have different Repaires performed,and on some days

[R] Time Series on Binary Data.

2014-02-27 Thread shilpi harpavat
Hi, I have a dichotomous data where some my independent variables are categorical, some are continuous and some are binary(0/1) My dependent is a binary response (Fail/NoFail,0/1) . The data is some readings collected everyday over a period of time. The goal is to use this data and see if we

[R] Source code for simple Forward step wise regression .

2012-06-06 Thread Shilpi Harpavat (PDF)
Hi , I want to implement a simple forward stepwise regression in java which fits a linear model with no term and then add terms one by one .What would be the best algorithm to use along with Criterion for what terms to keep /Drop and when to Stop. Any help appreciated. Thanks -- *The

[R] How to Rank clusters

2012-06-05 Thread shilpi harpavat
Hi, I have say 1000 different Independent Variables which have each been classified into diiferent clusters using some clustering method. I want to show these 1000 varaible in a report, but want some criterion to rank them so i can show the most significant ones (based on the cluster groups)