The censoring tag has no wiki summary.
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Name of phenomenon on estimated CDF plots of censored data
My dataset contains two (rather strongly correlated) variables $t$ (runtime of algorithm) and $n$ (number of examined nodes, whatever). Both are strongly correlated by design, because the algorithm ...
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Analyzing categorical data where the last category is unbounded
This is a bit of a long-winded data vis question.
We're gathering data from a water quality test measuring fecal contamination. The test measures fluorescence in 11 discrete chambers. The water is ...
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Finite mixture models with bounded data
I am trying to fit a finite mixture model to a dependent variable which is bounded (practically) between -0.594 and 1 (theoretically, the latent variable is bounded between -Inf - 1). The data are ...
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178 views
Broken Tobit regressions
I have a dataset with 43,422 observations and a left-censored (at 0) dependent variable. Of the $n$ observations, 42,536 are left-censored and 886 are not. I plan on analyzing this with a Tobit ...
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Is a snapshot of last login times a type of censored data?
I have a database of users with a field of the last time they logged in. Would this kind of data be considered "censored", and if so is there anything I can do with it beyond a histogram/density of ...
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Estimating right-censored data
I am VERY new to stats. I have a large amount of life-time data (delay in arrival since start of experiment) from repeat experiments. Some data is missing, but essentially represents a delay longer ...
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Accelerated Failure Time scale parameter excessively large when data is right censored
I am using an accelerated failure time model with the Weibull distribution to predict failure times. My failure times range from 1 - 365, with many (80%) data points that are right censored (no ...
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196 views
Tobit model with corner solution and selection problem
How would you estimate a model with a log transformed dependent variable with a corner at zero and a continuous distribution for strictly positive values AND an additional selection problem due to ...
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78 views
EM for truncated/censored data, how do those CDF's cancel?
I am practicing basic EM problems for qualifying exams.
I am having trouble with truncated/censored data problems. There is something I don't understand about the complete-data likelihood.
Consider ...
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146 views
Statistics for rounded data
I wonder about the existence of "standard" statistical procedures for rounded (log)normal data. Indeed, in my work I often encounter rounded data which potentially cause some problems: "awful" ...
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62 views
Testing a model with truncated data
This is probably a simple question.
I'm studying events which have N outcomes, of which exactly one is correct. N is very large, more than a billion (and is known). There are many possible events, ...
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32 views
High censoring rate in survival analysis
I have some data which I've analyzed using Kaplan Meier estimation. However, I have a gut feeling that this estimator is biased due to the high censoring rate in my data (nearly 50% censored at later ...
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33 views
Left Censoring Data for Survival Analysis
I am trying to analyze a data set what contains survival times that are left censored by creating an interval for each subject. I have the time that the treatment was administered, and also the time ...
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regression of paired left-censored data
I am trying to analyse data which is left-censored (i.e. has values below the detection limit). I have been using the NADA package of R to derive summary statistics and do some regression, which ...
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Are there any fitting function like fitdistcens from fitdistplus but also works for binned data?
I have a set of binned data and I would like to fit to some distributions.
As I cannot find any package which is able to deal with binned data, I instead use ...
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78 views
bootstrap function for left-censored data in R
Does anyone know how to program bootstrap method for left-censored data in R?
I found the censboot function the library(boot) but it is for right-censored data. I am wondering if anyone knows how to ...
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106 views
OLS bias with censored dependent variable
I have a dataset of 353 people and my dependent variable is censored at 0.The use of the Tobit model, with 83 left-censored people ( 83 zeros in the whole sample), has given me very few significant ...
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98 views
Time series with unusual censoring
A sequence of symbols is produced as follows:
Some unknown mechanism mimics sequential drawns are made from a set of $N$ distinct symbols. So we have a series $\{a_j\}$ with $a_j\in \{1,2,\dots N\}$.
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