The Analysis of Variance (ANOVA) is a commonly used statistical test in Statistics. The test compares the equality of means against the alternative that at least one of the means are different. In this report, we introduce a multivariate test known as Wavelet Analysis of Variance extending ANOVA to profile (functional) data. The test exploits the dimension reduction, noise elimination propertie...

Analysis of variance (ANOVA) refers to statistical models and associated procedures, in which the observed variance is partitioned into components due to different explanatory variables. It provides a statistical test concerning if the means of these several groups are all equal. In its simplest form, ANOVA is equivalent to Student's t-test when only two groups are invloved. The analysis of var...

A computational scheme for fitting smoothing spline ANOVA models to large data sets with a (near) tensor product design is proposed. Such data sets are common in spatial-temporal analyses. The proposed scheme uses the backfitting algorithm to take advantage of the tensor product design to save both computational memory and time. Several ways to further speed up the backfitting algorithm, such a...

Bonferroni’s Adjustment (also known as Dunn’s procedure). This procedure is simple to use and can be applied in a wide variety of situations where alpha correction is needed (and is perhaps most appropriate for situations other than the post hoc situation discussed here). To obtain a corrected critical value the desired alpha is divided by the number of comparisons or tests performed and that v...

We report the ASCA results of the super-nova remnants (SNRs) and their candidates in the Galac-tic Center region. We found apparent X-ray emission from G359.1−0.5 and G0.9+0.1, and made marginal detection for G359.1+0.9, but found no significant X-ray from the other cataloged SNRs: G359. The emission from G359.1−0.5 is found to be thermal with multi temperature structures whereas that from G0.9...

We report on the variability of the iron K emission line in the Seyfert 1 galaxy MCG– 6-30-15 during a four-day ASCA observation. The line consists of a narrow core at an energy of about 6.4 keV, and a broad red wing extending to below 5 keV, which are interpreted as line emission arising from the inner parts of an accretion disk. The narrow core correlates well with the continuum flux whereas ...

BeppoSAX and ASCA observations of the nearby (z = 0.184), high–luminosity, radio-quiet quasar PDS 456 are presented. The X–ray spectrum is characterized by a prominent ionized edge at 8–9 keV (originally discovered by RXTE, Reeves et al. 2000) and by a soft excess below 1.5 keV. The lack of any significant iron Kα emission line suggests for the edge an origin from line–of–sight material rather ...

On 1996 May 10, the All-Sky Monitor aboard RXTE revealed that Cyg X–1 started a transition from its hard state to soft state (Cui 1996). Throughout this interesting episode, snapshots were taken with more sensitive detectors on ASCA, RXTE, and CGRO to monitor the temporal and spectral variability of the source over a broad energy range. The results (both spectral and temporal) from these observ...

We report the results of BeppoSAX and ASCA observations of the X–ray source 1E 1743.1–2843, located in the region of the galactic center, performed between 1993 and 1998. Observations spanning almost twenty years show that 1E 1743.1–2843 is a persistent X–ray source, most likely powered by accretion onto a compact galactic object. The absence of periodic pulsations and the relatively soft X–ray...