[R] mvProbit error message

[PIKAL Petr]

Hi

I am not an expert in this area. Your error says

> However, i get an error message "...Error in
> mvProbit(cbind(y1,y2,y3,y4,y5) ~:all dependent variables must be either
> 0,1,TRUE, or FALSE)

str(mydata) tells you that you have factors.
$ tree           : Factor w/ 2 levels "FALSE","TRUE": 2 1 2 2 2 2 1 1 2 2 ...
$ nothing        : Factor w/ 2 levels "FALSE","TRUE": 1 1 1 1 1 1 1 2 1 1 ...
Maybe mvProbit is rather picky about input values.
So I would try to change those factors to its numeric representation by

mydata$tree <- as.numeric(mydata$tree)-1

You can use apply to change several factors to numeric at once.

Cheers
Petr

From: Betty Betty [mailto:aleminesh57 at gmail.com]
Sent: Wednesday, February 24, 2016 10:16 AM
To: PIKAL Petr
Cc: r-help at r-project.org
Subject: Re: [R] mvProbit error message

sorry for the confusion. I used y1,y2,.... instead of the real variable names just for emailing purpose (to forward my question in a more clear way). Tree, nothing...are the real variable names in my data set and i actually used
Result<-myProbit(cbind(tree,nothing....)~x1+x2......,data=mydata)

On Wed, Feb 24, 2016 at 10:02 AM, PIKAL Petr <petr.pikal at precheza.cz<mailto:petr.pikal at precheza.cz>> wrote:
Hi

Keep your reply to rhelp list. Others can come with better/more appropriate solution.

Pardon me, but you used

Result<-mvProbit( cbind(y1,y2,y3,y4,y5) ~ x1+x2+x3+......+.x11,data=mydata)

but in mydata there are variables tree and nothing (according what you did tell us).

So I am rather confused.

Cheers
Petr

From: Betty Betty [mailto:aleminesh57 at gmail.com<mailto:aleminesh57 at gmail.com>]
Sent: Wednesday, February 24, 2016 9:55 AM
To: PIKAL Petr
Subject: Re: [R] mvProbit error message

Thank you very much!
I find the following out put
1.  If I import the data with read.spss(....use.value.lables=FALSE) str(mydata) shows me:

$ tree           : atomic  1 0 1 1 1 1 0 0 1 1 ...
  ..- attr(*, "value.labels")= Named num  1 0
  .. ..- attr(*, "names")= chr  "TRUE" "FALSE"
$ nothing        : atomic  0 0 0 0 0 0 0 1 0 0 ...
  ..- attr(*, "value.labels")= Named num  1 0
  .. ..- attr(*, "names")= chr  "TRUE" "FALSE"
.
2.  If I import data with read.spss(....use.value.lables=TRUE) str(mydata)
shows me:


$ tree           : Factor w/ 2 levels "FALSE","TRUE": 2 1 2 2 2 2 1 1 2 2 ...
$ nothing        : Factor w/ 2 levels "FALSE","TRUE": 1 1 1 1 1 1 1 2 1 1 ...
regards

On Tue, Feb 23, 2016 at 3:53 PM, PIKAL Petr <petr.pikal at precheza.cz<mailto:petr.pikal at precheza.cz>> wrote:
Hi

It shall work, I do not see any problem in the code. So you have to persuade us that you checked your data properly e.g. by posting result of

str(mydata)

Cheers
Petr


> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org<mailto:r-help-bounces at r-project.org>] On Behalf Of Betty
> Betty
> Sent: Tuesday, February 23, 2016 9:37 AM
> To: r-help at r-project.org<mailto:r-help at r-project.org>
> Subject: [R] mvProbit error message
>
> Dear All,
> I am running the mvProbit model to estimate five equation probit
> models. In my data all the dependent variables are dichotomous with
> values 0/1 and lables TRUE/FALSE. The explanatory variables are
> composed of catagorical and countinous variables. I specified the model
> as follows
>
> Result<-mvProbit( cbind(y1,y2,y3,y4,y5) ~
> x1+x2+x3+......+.x11,data=mydata)
> summary(Result)
>
> However, i get an error message "...Error in
> mvProbit(cbind(y1,y2,y3,y4,y5) ~:all dependent variables must be either
> 0,1,TRUE, or FALSE)
>
> I have checked all the dependent variables and it is coded 0/1 and
> lables TRUE/FALSE.
> Ofcourse there are two missing observation and I attempted to handle
> that with na.action=na.omit but even that didnt solve the problem. My
> second attempt was to tell r that the dichotomous dependent variables
> and the catagorical independent variables as factor as follows
>
> mydata$y1<-factor(mydata$y1)
> ...
> ...
> ..
> .
> mydata$x3<-factor(mydata$x3)
> But still problem not solved. How would I solve this problem?
> Thank you!
>
>       [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org<mailto:R-help at r-project.org> mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-
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> and provide commented, minimal, self-contained, reproducible code.

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