[R] Help with the Error Message in R "Error in 1:nchid : result would be too long a vector"

Rahul Chakraborty ch@kr@r@hu| @end|ng |rom gm@||@com
Mon Sep 21 22:37:53 CEST 2020


Hello,

Here is the result of summary(mydata)

summary(mydata)
      IND            Block            QES         STR             ALT
 Min.   :  1.0   Min.   :1.000   Min.   :1   Min.   :  101   Min.   :1
 1st Qu.:129.8   1st Qu.:1.000   1st Qu.:3   1st Qu.:12978   1st Qu.:1
 Median :258.5   Median :2.000   Median :5   Median :25855   Median :2
 Mean   :258.5   Mean   :2.467   Mean   :5   Mean   :25855   Mean   :2
 3rd Qu.:387.2   3rd Qu.:4.000   3rd Qu.:7   3rd Qu.:38732   3rd Qu.:3
 Max.   :516.0   Max.   :4.000   Max.   :9   Max.   :51609   Max.   :3
   ALT_name              ASC             Choice      Choice_binary
 Length:13932       Min.   :0.0000   Min.   :1.000   Min.   :0.0000
 Class :character   1st Qu.:0.0000   1st Qu.:1.000   1st Qu.:0.0000
 Mode  :character   Median :1.0000   Median :1.000   Median :0.0000
                    Mean   :0.6667   Mean   :1.626   Mean   :0.3333
                    3rd Qu.:1.0000   3rd Qu.:2.000   3rd Qu.:1.0000
                    Max.   :1.0000   Max.   :3.000   Max.   :1.0000
     Price       Refuel_availability Registration_charges  Running_cost
 Min.   : 9.00   Min.   :0.25        Min.   :0.00000      Min.   :115.0
 1st Qu.:10.00   1st Qu.:0.75        1st Qu.:0.04000      1st Qu.:192.0
 Median :10.00   Median :0.90        Median :0.06000      Median :268.0
 Mean   :10.33   Mean   :0.80        Mean   :0.05333      Mean   :268.2
 3rd Qu.:11.00   3rd Qu.:1.00        3rd Qu.:0.08000      3rd Qu.:383.0
 Max.   :12.00   Max.   :1.00        Max.   :0.08000      Max.   :383.0
  Market_share    Friends_share     Refuel_time       Emission
 Min.   :0.0500   Min.   :0.0000   Min.   : 5.00   Min.   :0.0000
 1st Qu.:0.1500   1st Qu.:0.1500   1st Qu.: 5.00   1st Qu.:0.0000
 Median :0.2500   Median :0.3000   Median : 5.00   Median :0.7500
 Mean   :0.3333   Mean   :0.3333   Mean   :13.33   Mean   :0.5833
 3rd Qu.:0.6000   3rd Qu.:0.5500   3rd Qu.:30.00   3rd Qu.:1.0000
 Max.   :0.9000   Max.   :1.0000   Max.   :30.00   Max.   :1.0000
      Sex              Age2             Age3             Age4
 Min.   :0.0000   Min.   :0.0000   Min.   :0.0000   Min.   :0.0000
 1st Qu.:1.0000   1st Qu.:0.0000   1st Qu.:0.0000   1st Qu.:0.0000
 Median :1.0000   Median :0.0000   Median :0.0000   Median :0.0000
 Mean   :0.7791   Mean   :0.4574   Mean   :0.2326   Mean   :0.1531
 3rd Qu.:1.0000   3rd Qu.:1.0000   3rd Qu.:0.0000   3rd Qu.:0.0000
 Max.   :1.0000   Max.   :1.0000   Max.   :1.0000   Max.   :1.0000
     Edu_PG          Edu_Oth          Occu_Pvt        Occu_Pub
 Min.   :0.0000   Min.   :0.0000   Min.   :0.000   Min.   :0.0000
 1st Qu.:0.0000   1st Qu.:0.0000   1st Qu.:0.000   1st Qu.:0.0000
 Median :0.0000   Median :0.0000   Median :0.000   Median :0.0000
 Mean   :0.4147   Mean   :0.1841   Mean   :0.376   Mean   :0.2733
 3rd Qu.:1.0000   3rd Qu.:0.0000   3rd Qu.:1.000   3rd Qu.:1.0000
 Max.   :1.0000   Max.   :1.0000   Max.   :1.000   Max.   :1.0000
    Occu_SE       Location_metro   Location_majorcity      Ahm
 Min.   :0.0000   Min.   :0.0000   Min.   :0.0000     Min.   :0.00000
 1st Qu.:0.0000   1st Qu.:1.0000   1st Qu.:0.0000     1st Qu.:0.00000
 Median :0.0000   Median :1.0000   Median :0.0000     Median :0.00000
 Mean   :0.2655   Mean   :0.7655   Mean   :0.1453     Mean   :0.04457
 3rd Qu.:1.0000   3rd Qu.:1.0000   3rd Qu.:0.0000     3rd Qu.:0.00000
 Max.   :1.0000   Max.   :1.0000   Max.   :1.0000     Max.   :1.00000
      Ben               Chen              NCR              Hyd
 Min.   :0.00000   Min.   :0.00000   Min.   :0.0000   Min.   :0.00000
 1st Qu.:0.00000   1st Qu.:0.00000   1st Qu.:0.0000   1st Qu.:0.00000
 Median :0.00000   Median :0.00000   Median :0.0000   Median :0.00000
 Mean   :0.06977   Mean   :0.04651   Mean   :0.2558   Mean   :0.03682
 3rd Qu.:0.00000   3rd Qu.:0.00000   3rd Qu.:1.0000   3rd Qu.:0.00000
 Max.   :1.00000   Max.   :1.00000   Max.   :1.0000   Max.   :1.00000
      Kol              Mum            MajCity          HH_size
 Min.   :0.0000   Min.   :0.0000   Min.   :0.0000   Min.   : 1.000
 1st Qu.:0.0000   1st Qu.:0.0000   1st Qu.:0.0000   1st Qu.: 3.000
 Median :0.0000   Median :0.0000   Median :0.0000   Median : 5.000
 Mean   :0.2016   Mean   :0.1105   Mean   :0.1453   Mean   : 4.463
 3rd Qu.:0.0000   3rd Qu.:0.0000   3rd Qu.:0.0000   3rd Qu.: 6.000
 Max.   :1.0000   Max.   :1.0000   Max.   :1.0000   Max.   :10.000
    Children           IG2              IG3              IG4
 Min.   :0.0000   Min.   :0.0000   Min.   :0.0000   Min.   :0.0000
 1st Qu.:0.0000   1st Qu.:0.0000   1st Qu.:0.0000   1st Qu.:0.0000
 Median :1.0000   Median :0.0000   Median :0.0000   Median :0.0000
 Mean   :0.8721   Mean   :0.3818   Mean   :0.4109   Mean   :0.1841
 3rd Qu.:1.0000   3rd Qu.:1.0000   3rd Qu.:1.0000   3rd Qu.:0.0000
 Max.   :4.0000   Max.   :1.0000   Max.   :1.0000   Max.   :1.0000
    HH_cars       PPC_morethan10      PPC_gr1         PPC_gr2
 Min.   :0.0000   Min.   :0.0000   Min.   :0.000   Min.   :0.00000
 1st Qu.:0.0000   1st Qu.:0.0000   1st Qu.:0.000   1st Qu.:0.00000
 Median :0.0000   Median :0.0000   Median :0.000   Median :0.00000
 Mean   :0.4864   Mean   :0.4516   Mean   :0.405   Mean   :0.04651
 3rd Qu.:1.0000   3rd Qu.:1.0000   3rd Qu.:1.000   3rd Qu.:0.00000
 Max.   :3.0000   Max.   :1.0000   Max.   :1.000   Max.   :1.00000
   Body_Sedan        Body_SUV      Daily_travel_medium Daily_travel_long
 Min.   :0.0000   Min.   :0.0000   Min.   :0.0000      Min.   :0.00000
 1st Qu.:0.0000   1st Qu.:0.0000   1st Qu.:0.0000      1st Qu.:0.00000
 Median :0.0000   Median :0.0000   Median :0.0000      Median :0.00000
 Mean   :0.3178   Mean   :0.2364   Mean   :0.3702      Mean   :0.02713
 3rd Qu.:1.0000   3rd Qu.:0.0000   3rd Qu.:1.0000      3rd Qu.:0.00000
 Max.   :1.0000   Max.   :1.0000   Max.   :1.0000      Max.   :1.00000
   Long_drive       Mode_Carpool        Mode_PB          Mode_PV
 Min.   :0.00000   Min.   :0.00000   Min.   :0.0000   Min.   :0.0000
 1st Qu.:0.00000   1st Qu.:0.00000   1st Qu.:0.0000   1st Qu.:0.0000
 Median :0.00000   Median :0.00000   Median :0.0000   Median :0.0000
 Mean   :0.03488   Mean   :0.02519   Mean   :0.2907   Mean   :0.4419
 3rd Qu.:0.00000   3rd Qu.:0.00000   3rd Qu.:1.0000   3rd Qu.:1.0000
 Max.   :1.00000   Max.   :1.00000   Max.   :1.0000   Max.   :1.0000
    Mode_WRC           Garage_y           DL_y          Own_accom
 Min.   :0.000000   Min.   :0.0000   Min.   :0.0000   Min.   :0.0000
 1st Qu.:0.000000   1st Qu.:0.0000   1st Qu.:0.0000   1st Qu.:0.0000
 Median :0.000000   Median :1.0000   Median :1.0000   Median :1.0000
 Mean   :0.007752   Mean   :0.7267   Mean   :0.6357   Mean   :0.6647
 3rd Qu.:0.000000   3rd Qu.:1.0000   3rd Qu.:1.0000   3rd Qu.:1.0000
 Max.   :1.000000   Max.   :1.0000   Max.   :1.0000   Max.   :1.0000
 Freerider_water_electricity Freerider_tot   Freerider_avg
Satisfaction_tot
 Min.   :1.000               Min.   :2.000   Min.   :1.000   Min.   : 2.000

 1st Qu.:2.000               1st Qu.:2.000   1st Qu.:1.000   1st Qu.: 3.000

 Median :3.000               Median :2.000   Median :1.000   Median : 4.000

 Mean   :3.002               Mean   :2.244   Mean   :1.122   Mean   : 4.264

 3rd Qu.:4.000               3rd Qu.:2.000   3rd Qu.:1.000   3rd Qu.: 5.000

 Max.   :5.000               Max.   :8.000   Max.   :4.000   Max.   :10.000

 Satisfaction_avg Political_view  Meet_friends       Meet_colleagues
 Min.   :1.000    Min.   :1.000   Length:13932       Length:13932
 1st Qu.:1.500    1st Qu.:3.000   Class :character   Class :character
 Median :2.000    Median :3.000   Mode  :character   Mode  :character
 Mean   :2.132    Mean   :3.258
 3rd Qu.:2.500    3rd Qu.:4.000
 Max.   :5.000    Max.   :5.000
 Meet_relatives     Invite_colleagues  Invite_friends     Invite_relatives
 Length:13932       Length:13932       Length:13932       Length:13932
 Class :character   Class :character   Class :character   Class :character
 Mode  :character   Mode  :character   Mode  :character   Mode  :character



 Lending_relatives  Lending_friends    Lending_colleagues
 Length:13932       Length:13932       Length:13932
 Class :character   Class :character   Class :character
 Mode  :character   Mode  :character   Mode  :character



 Willingness_Purchase_Env_frnd EVuse_pollution  WTP_env_tot
 WTP_env_avg
 Min.   :1.000                 Min.   :1.000   Min.   : 2.000   Min.
:1.000
 1st Qu.:4.000                 1st Qu.:3.000   1st Qu.: 7.000   1st
Qu.:3.500
 Median :4.000                 Median :4.000   Median : 8.000   Median
:4.000
 Mean   :4.132                 Mean   :3.992   Mean   : 8.124   Mean
:4.062
 3rd Qu.:5.000                 3rd Qu.:5.000   3rd Qu.: 9.000   3rd
Qu.:4.500
 Max.   :5.000                 Max.   :5.000   Max.   :10.000   Max.
:5.000
 Social_recognition Car_social_status  Warmglow_tot    Warmglow_avg
 Min.   :1.000      Min.   :1.00      Min.   : 2.00   Min.   :1.000
 1st Qu.:3.000      1st Qu.:4.00      1st Qu.: 6.00   1st Qu.:3.000
 Median :4.000      Median :4.00      Median : 8.00   Median :4.000
 Mean   :3.541      Mean   :4.07      Mean   : 7.61   Mean   :3.805
 3rd Qu.:4.000      3rd Qu.:5.00      3rd Qu.: 9.00   3rd Qu.:4.500
 Max.   :5.000      Max.   :5.00      Max.   :10.00   Max.   :5.000
    Standout     Acceptance_new Climate_perception    Env_pref
 Tech_leader
 Min.   :1.000   Min.   :1.0    Min.   :1.000      Min.   :1.000   Min.
:1.0
 1st Qu.:2.000   1st Qu.:2.0    1st Qu.:4.000      1st Qu.:2.000   1st
Qu.:2.0
 Median :3.000   Median :3.0    Median :5.000      Median :3.000   Median
:2.0
 Mean   :2.657   Mean   :2.8    Mean   :4.483      Mean   :3.093   Mean
:2.5
 3rd Qu.:3.000   3rd Qu.:4.0    3rd Qu.:5.000      3rd Qu.:4.000   3rd
Qu.:3.0
 Max.   :5.000   Max.   :5.0    Max.   :5.000      Max.   :5.000   Max.
:5.0
 Social_motivation_tot Social_motivation_avg Social_motivation_median
 Min.   : 3.00         Min.   :1.000         Min.   :1.000
 1st Qu.: 9.00         1st Qu.:3.000         1st Qu.:3.000
 Median :11.00         Median :3.667         Median :3.000
 Mean   :10.62         Mean   :3.539         Mean   :3.514
 3rd Qu.:12.00         3rd Qu.:4.000         3rd Qu.:4.000
 Max.   :15.00         Max.   :5.000         Max.   :5.000
  EV_risk_tot      EV_risk_avg      EV_price     EV_awareness_tot
EV_awareness_avg
 Min.   : 2.000   Min.   :1.00   Min.   :1.000   Min.   : 3.000   Min.
:1.000
 1st Qu.: 8.000   1st Qu.:4.00   1st Qu.:1.000   1st Qu.: 4.000   1st
Qu.:1.333
 Median : 9.000   Median :4.50   Median :2.000   Median : 5.000   Median
:1.667
 Mean   : 8.661   Mean   :4.33   Mean   :2.244   Mean   : 5.419   Mean
:1.806
 3rd Qu.:10.000   3rd Qu.:5.00   3rd Qu.:3.000   3rd Qu.: 6.000   3rd
Qu.:2.000
 Max.   :10.000   Max.   :5.00   Max.   :5.000   Max.   :15.000   Max.
:5.000
 EV_awareness_median    Lost_env     Investment_trust   Lottery1
 Min.   :1.000       Min.   :1.000   Min.   :     0   Length:13932
 1st Qu.:1.000       1st Qu.:5.000   1st Qu.:     0   Class :character
 Median :2.000       Median :5.000   Median :     0   Mode  :character
 Mean   :1.806       Mean   :4.913   Mean   :  1345
 3rd Qu.:2.000       3rd Qu.:5.000   3rd Qu.:     0
 Max.   :5.000       Max.   :5.000   Max.   :100000
    Time1             Lottery2            Time2
 Length:13932       Length:13932       Length:13932
 Class :character   Class :character   Class :character
 Mode  :character   Mode  :character   Mode  :character



Yes, I have many Likert items and many dummy variables. How do I solve this
issue?

Best regards,

On Tue, Sep 22, 2020 at 1:45 AM David Winsemius <dwinsemius using comcast.net>
wrote:

> If you had included output of summary(mydata) we might be more capable
> of giving a fact-based answer but I'm guessing that you have a lot of
> catagorical variables with multiple levels and some sort of combinatoric
> explosion is resulting in too many levels of a constructed factor.
>
>
> --
>
> David.
>
> On 9/21/20 12:55 PM, Rahul Chakraborty wrote:
> > Hello everyone,
> >
> > I am using *mlogit* to analyse my choice experiment data. I have *3
> > alternatives* for each individual and for each individual I have *9
> > questions*. I have a response from *516 individuals*. So it is a panel of
> > 9*516 observations. I have arranged the data in long format (it contains
> > 100 columns indicating different variables and identifiers).
> >
> > In mlogit I tried the following command---
> >
> > *mldata<- mlogit.data(mydata, shape = "long", alt.var = "Alt_name",
> choice
> > = "Choice_binary", id.var = "IND")*
> >
> > It is giving me the following error message- Error in 1:nchid : result
> > would be too long a vector
> >
> > Could you please help me with this? I don't think it is too big a data
> 100
> > ROWS*13932 columns. I faced no issue in Excel. I am stuck due to this
> issue.
> > Thanks in advance.
> >
> > -- Best Regards,
> > Rahul Chakraborty
> > Research Fellow
> > National Institute of Public Finance and Policy
> > New Delhi- 110067
> >
> >       [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help using 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-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>


-- 
Rahul Chakraborty
Research Fellow
National Institute of Public Finance and Policy
New Delhi- 110067

	[[alternative HTML version deleted]]



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