BE-proff
●    

2015-08-26 13:56
(3497 d 16:03 ago)

Posting: # 15335
Views: 8,913
 

 Error of Bear [🇷 for BE/BA]

Post reply
Hi All,

I have uploaded data from csv for NCA and bear returned the following error:

Error in `contrasts<-`(`*tmp*`, value = contr.funs[1 + isOF[nn]]) :
contrasts can be applied only to factors with 2 or more levels

I used another csv and bear worked properly.
Maybe anything wrong with data?:confused:
 
yjlee168
★★★
avatar
Homepage
Kaohsiung, Taiwan,
2015-08-26 14:10
(3497 d 15:49 ago)

@ BE-proff
Posting: # 15336
Views: 7,524
 

 please give more info for error

Post reply
Dear BE-proff,

Could you be more specific or clarify how you got this error before I can help? I really have no idea what it is going on. Thanks.
—
All the best,
-- Yung-jin Lee
bear v2.9.2:- created by Hsin-ya Lee & Yung-jin Lee
Kaohsiung, Taiwan https://www.pkpd168.com/bear
Download link (updated) -> here
 
BE-proff
●    

2015-08-26 14:38
(3497 d 15:20 ago)

@ yjlee168
Posting: # 15337
Views: 7,399
 

 please give more info for error

Post reply
Dear yjlee168,

I have attached screeshot of the error.

[image]

Hope it will help
 
yjlee168
★★★
avatar
Homepage
Kaohsiung, Taiwan,
2015-08-26 20:02
(3497 d 09:56 ago)

@ BE-proff
Posting: # 15345
Views: 7,552
 

 cannot reproduce the error

Post reply
Dear BE-proff,

I still confused how you got the situation as your attached screenshot. Look like that NCA has been done and was ready to run anova. But it should be like this picture as attached. I still cannot reproduce your error. Sorry about this.

[image]
—
All the best,
-- Yung-jin Lee
bear v2.9.2:- created by Hsin-ya Lee & Yung-jin Lee
Kaohsiung, Taiwan https://www.pkpd168.com/bear
Download link (updated) -> here
 
BE-proff
●    

2015-08-27 10:44
(3496 d 19:14 ago)

@ yjlee168
Posting: # 15348
Views: 7,371
 

 cannot reproduce the error

Post reply
Dear yjlee168,

I have tried again, step-by-step and the new error is on screenshot

[image]

The previous error doesn't repeat ;-)
 
yjlee168
★★★
avatar
Homepage
Kaohsiung, Taiwan,
2015-08-27 11:07
(3496 d 18:52 ago)

@ BE-proff
Posting: # 15351
Views: 7,455
 

 insufficient data points for lambda_z estimation

Post reply
Dear BE-proff,

I may know this error. It means that you do not have enough data points to perform linear regression to obtain the terminal elimination rate constant (ke or lambdaz). I will suggest that you check your dataset carefully and delete the suspected subjects (all periods) with insufficient data points (esp. the one with many NA after Tmax). Alternately, you can choose "manual selection" for lambdaz estimation. It will provide you more clear information about the data quality of each subject. BTW, this error occurs before doing NCA.
—
All the best,
-- Yung-jin Lee
bear v2.9.2:- created by Hsin-ya Lee & Yung-jin Lee
Kaohsiung, Taiwan https://www.pkpd168.com/bear
Download link (updated) -> here
 
d_labes
★★★

Berlin, Germany,
2015-08-27 11:22
(3496 d 18:37 ago)

@ BE-proff
Posting: # 15353
Views: 7,375
 

 cannot reproduce the error

Post reply
Dear BE-proff,

as ElMaestro once stated: "Garbage in, garbage out. It's very simple".
SCRN :lookaround:
—
Regards,

Detlew
 
UA Flag
Activity
 Admin contact
23,409 posts in 4,921 threads, 1,677 registered users;
10 visitors (0 registered, 10 guests [including 4 identified bots]).
Forum time: 04:59 CET (Europe/Vienna)

There are no routine statistical questions,
only questionable statistical routines.    David R. Cox

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5