Dear Rolf:
The histogram should contain a bar(s) for the censored data values replaced
by their detection limit(s) with different color than other bars for the
noncensored values . In this example there are only 3 censored values with
only one detection limit of DL = 1450.
with many thanks
steve
On Thu, Dec 31, 2015 at 4:16 PM, Rolf Turner <r.tur...@auckland.ac.nz>
wrote:
> On 31/12/15 23:20, Steven Stoline wrote:
>
>> Dear All:
>>
>> I need helps with creating histograms for data that include left
>> censored observations.
>>
>> Here is an example of left censored data
>>
>>
>>
>> *Sulfate.Concentration*
>> <-matrix(c(1450,1800,1840,1820,1860,1780,1760,1800,1900,1770,1790,
>> 1780,1850,1760,1450,1710,1575,1475,1780,1790,1780,1450,1790,1800,
>> 1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0),24,2)
>>
>>
>> *Column 2* is an indicator for censoring "*1*" for left censored
>> observations and "*0*" for non-censored (fully measured)
>> observations.
>>
>
> And what, pray tell, do you want the resulting histogram to look like?
> See e.g. fortune("mind_read").
>
> cheers,
>
> Rolf Turner
>
> --
> Technical Editor ANZJS
> Department of Statistics
> University of Auckland
> Phone: +64-9-373-7599 ext. 88276
>
--
Steven M. Stoline
1123 Forest Avenue
Portland, ME 04112
sstol...@gmail.com
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