Running examples in ‘MAINT.Data-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: MAINT.Data-package
> ### Title: Modelling and Analizing Interval Data
> ### Aliases: MAINT.Data-package MAINT.Data
> ### Keywords: MAINT.Data Interval Data Symbolic Data Analysis MANOVA for
> ###   Interval Data Parametric modelling of Interval Data Statistical tests
> ###   for Interval Data
> 
> ### ** Examples
> 
> # Create an Interval-Data object containing the intervals for 899 observations 
> # on the temperatures by quarter in 60 Chinese meteorological stations.
> 
> ChinaT <- IData(ChinaTemp[1:8],VarNames=c("T1","T2","T3","T4"))
> 
> #Display the first and last observations
> 
> head(ChinaT)
                        T1                    T2                    T3                    T4
AnQing_1974   [ 0.6729807, 14.82702]  [13.43536, 28.46464]  [19.82056, 31.17944]  [2.216049,  9.983951]  
AnQing_1975   [ 2.3193619, 14.38064]  [12.82868, 28.47132]  [23.19214, 32.30786]  [1.012909, 10.987091]  
AnQing_1976   [ 0.9058266, 12.49417]  [11.79504, 28.40496]  [19.68002, 34.11998]  [2.992233, 10.307767]  
AnQing_1977   [-1.9807635, 15.48076]  [14.50047, 28.09953]  [20.80583, 32.39417]  [4.885656, 11.914344]  
AnQing_1978   [ 1.3293678, 13.27063]  [12.80949, 29.09051]  [20.58416, 35.31584]  [3.608455, 13.191545]  
AnQing_1979   [ 1.4320913, 14.36791]  [12.46293, 30.63707]  [19.71709, 32.78291]  [4.605245, 11.494755]  
> tail(ChinaT)
                          T1                    T2                    T3                    T4
ZhiJiang_1983   [ 1.0851142, 14.41489]  [13.32868, 28.97132]  [21.32937, 33.27063]  [3.718341, 11.181659]  
ZhiJiang_1984   [-0.5146378, 14.51464]  [13.09286, 30.90714]  [18.73002, 33.16998]  [2.400336,  9.499664]  
ZhiJiang_1985   [ 1.9075708, 10.49243]  [12.08149, 29.71851]  [19.18416, 33.91584]  [2.705472, 10.094528]  
ZhiJiang_1986   [ 2.7321382, 16.46786]  [13.90984, 29.09016]  [18.59340, 32.60660]  [4.696335, 13.903665]  
ZhiJiang_1987   [ 4.3121628, 14.48784]  [12.30008, 28.09992]  [19.23209, 32.16791]  [2.419362, 14.480638]  
ZhiJiang_1988   [ 2.7110292, 12.98897]  [12.11293, 30.28707]  [18.82298, 32.97702]  [5.116915, 13.283085]  
> 
> #Print summary statistics
> 
> summary(ChinaT)
Mid-Points summary:
    T1.MidP           T2.MidP         T3.MidP         T4.MidP       
 Min.   :-21.400   Min.   : 6.85   Min.   :12.45   Min.   :-24.600  
 1st Qu.: -2.075   1st Qu.:15.55   1st Qu.:19.70   1st Qu.: -3.800  
 Median :  4.850   Median :19.15   Median :23.45   Median :  3.550  
 Mean   :  3.628   Mean   :18.56   Mean   :23.08   Mean   :  2.541  
 3rd Qu.:  9.775   3rd Qu.:21.40   3rd Qu.:26.93   3rd Qu.:  9.500  
 Max.   : 23.400   Max.   :29.25   Max.   :29.80   Max.   : 21.350  
Ranges summary:
 T1.Range         T2.Range         T3.Range        T4.Range        
 Min.   : 6.619   Min.   : 8.331   Min.   : 6.89   Min.   : 3.004  
 1st Qu.:12.182   1st Qu.:15.180   1st Qu.:11.25   1st Qu.: 8.331  
 Median :17.116   Median :18.728   Median :14.01   Median :10.278  
 Mean   :17.513   Mean   :19.248   Mean   :14.62   Mean   :10.976  
 3rd Qu.:22.198   3rd Qu.:23.104   3rd Qu.:17.99   3rd Qu.:13.197  
 Max.   :36.598   Max.   :32.786   Max.   :26.31   Max.   :25.534  
Log-Ranges summary:
    T1.LogR         T2.LogR         T3.LogR         T4.LogR    
 Min.   :1.890   Min.   :2.120   Min.   :1.930   Min.   :1.10  
 1st Qu.:2.500   1st Qu.:2.720   1st Qu.:2.420   1st Qu.:2.12  
 Median :2.840   Median :2.930   Median :2.640   Median :2.33  
 Mean   :2.799   Mean   :2.922   Mean   :2.638   Mean   :2.34  
 3rd Qu.:3.100   3rd Qu.:3.140   3rd Qu.:2.890   3rd Qu.:2.58  
 Max.   :3.600   Max.   :3.490   Max.   :3.270   Max.   :3.24  
> 
> #Create a new data set considering only the Winter (1st and 4th) quarter intervals
> 
> ChinaWT <- ChinaT[,c(1,4)]
> 
> # Estimate normal distributuion parameters by maximum likelihood, assuming 
> # the classical (unrestricted) covariance configuration Case 1
> 
> ChinaWTE.C1 <- mle(ChinaWT,CovCase=1)
 ----------- FAILURE REPORT -------------- 
 --- failure: the condition has length > 1 ---
 --- srcref --- 
: 
 --- package (from environment) --- 
MAINT.Data
 --- call from context --- 
pdwt.solve(CovConfCases[[CvCase]]$mleSigE, silent = TRUE, onlylogdet = TRUE)
 --- call from argument --- 
if (class(u) == "try-error") if (silent) return(NULL) else stop("x appears to be not positive definite")
 --- R stacktrace ---
where 1: pdwt.solve(CovConfCases[[CvCase]]$mleSigE, silent = TRUE, onlylogdet = TRUE)
where 2: IdtNmle(Idt, OptCntrl = OptCntrl, CovCaseArg = CovCaseArg, Config = Config, 
    SelCrit = SelCrit)
where 3: mle(ChinaWT, CovCase = 1)
where 4: mle(ChinaWT, CovCase = 1)

 --- value of length: 2 type: logical ---
[1] FALSE FALSE
 --- function from context --- 
function (x, silent = FALSE, log.det = FALSE, onlylogdet = FALSE, 
    symtol = .Machine$double.eps) 
{
    if (is.null(x)) 
        if (silent) 
            return(NULL)
        else stop("pdwt.solve invoked with a NULL first argument")
    if (any(is.na(x))) 
        if (silent) 
            return(NULL)
        else stop("NA's in x")
    if (length(x) == 1) 
        x <- as.matrix(x)
    if (!is.matrix(x)) 
        if (silent) 
            return(NULL)
        else stop("x is not a matrix")
    maxsymdif <- max(abs(x - t(x)))
    if (maxsymdif > symtol) 
        if (silent) 
            return(NULL)
        else stop("x appears to be not symmetric")
    if (maxsymdif > 0) 
        x <- (x + t(x))/2
    u <- try(chol(x, pivot = FALSE), silent = silent)
    if (class(u) == "try-error") 
        if (silent) 
            return(NULL)
        else stop("x appears to be not positive definite")
    if (log.det || onlylogdet) 
        logdet <- 2 * sum(log(diag(u)))
    if (onlylogdet) 
        return(logdet)
    inv <- chol2inv(u)
    if (log.det) 
        attr(inv, "log.det") <- logdet
    inv
}
<bytecode: 0x564e4e48e9e8>
<environment: namespace:MAINT.Data>
 --- function search by body ---
Function pdwt.solve in namespace MAINT.Data has this body.
 ----------- END OF FAILURE REPORT -------------- 
Fatal error: the condition has length > 1