Closed htjollyn closed 5 years ago
Dear Huybrecht,
In xpose you can either generate VPCs using a PsN folder (via the psn_folder argument) or by using a run containing both a simulation and an estimation problem.
From your message it seems that you opted for the latter and I am suspecting that your problem may be due to the fact that your NONMEM run only contained one $PROBLEM. I will try to improve this in the future but in the meantime you can see code here
You can read more about vpcs in xpose here.
Best of luck
I am closing this please re-open if needed
Ok thank you, Huybrecht
On Sun, 13 Jan 2019, 22:27 Benjamin <notifications@github.com wrote:
I am closing this please re-open if needed
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Hi I have a similar question I have dataset with CMT column for compartment. I want to startify based on pediatric age groups. So in the data I coded the age groups as 1,2,3 and gave column name GRP. Now when I run VPC Command using -stratify_on=c(CMT,GRP) or stratify_on=‘CMT’~’GRP’ It gives error with termination.
can you kindly help on what I am missing
thanks Faisal
Dear Xpose group
I would like to use vpc_data from the xpose package to be able to stratify on 2 variables. I have 2 columns in the original file as well as in the sdtab, named CMT (the NONMEM compartment) and GRP (the dose group).
With the following code I want to stratify first on GRP, then on CMT:
vpc_data(xpdb, vpc_type = "continuous", stratify = ~GRP+CMT, psn_folder = dir")
I get the following output after running the command:
VPC continuous --------------------
Gathering data & settings Importing PsN generated data |============================| 100% 86 MB Setting stratifying variable to GRP, CMT
Computing VPC data Configuring and initializing... Stratifying oberved data... Error in check_stratification_columns_available(obs, stratify, "observation") : The following specified stratification columns were NOT found in observation data: GRP,CMT
Did anybody encounter a similar issue? How can it be resolved?
Thank you in advance!
Best Huybrecht