نتایج جستجو برای: spearmans rank correlation coefficient
تعداد نتایج: 581301 فیلتر نتایج به سال:
Moyamoya patients underwent cerebral revascularization surgery had higher risk for postoperative complications. Cerebral autoregulation impaired may be the main mechanism for postoperative complications. In our study, we used correlation coefficient r between cerebral tissue oxygenation index (TOI) and mean arterial blood pressure (MAP) to assessing of cerebral autoregulation. Total 30 moyamoya...
MOTIVATION The success of each method of cluster analysis depends on how well its underlying model describes the patterns of expression. Outlier-resistant and distribution-insensitive clustering of genes are robust against violations of model assumptions. RESULTS A measure of dissimilarity that combines advantages of the Euclidean distance and the correlation coefficient is introduced. The me...
This paper addresses the problem of finding a subset of the acoustic feature space that best represents the phoneme set used in a speech recognition system. A maximum mutual information approach is presented for selecting acoustic features to be combined together to represent the distinctions among the phonemes. The overall phoneme recognition accuracy is slightly increased for the same length ...
The aim of this study was to investigate sources of stress and psychological disturbance in dental students across the five years of undergraduate study at a dental school in Trinidad. Eighty-three percent of students completed a modified version of the Dental Environment Stress questionnaire (DES) and the Brief Symptom Inventory (BSI). On a scale ranging from 0 (not stressful) to 5 (highly str...
The quotient correlation is defined here as an alternative to Pearson’s correlation that is more intuitive and flexible in cases where the tail behavior of data is important. It measures nonlinear dependence where the regular correlation coefficient is generally not applicable. One of its most useful features is a test statistic that has high power when testing nonlinear dependence in cases whe...
Esophageal cancer (EC) is a malignant tumor with a typically poor prognosis for patients. It is well known that certain microRNA (miRNA/miR) genes can regulate other genes responsible for carcinogenesis. In the present study, a group of these genes (miR-21, miR-134, miR-205 and miR-495) and genes connected with cancer-related pathways (MET, MMP9, PDGFA and SERPINE1) were chosen for analysis in ...
Purpose: This article is an attempt to determine the share of two types of readings (profession-oriented reading and free reading) which are performed in public libraries. It also tries to show the types of library divisions (circulation, membership, collection, area and library clients) which explain the mentioned reading types. Method: In the present research, which is an applied research w...
The quotient correlation is defined here as an alternative to Pearson’s correlation that is more intuitive and flexible in cases where the tail behavior of data is important. It measures nonlinear dependence where the regular correlation coefficient is generally not applicable. One of its most useful features is a test statistic that has high power when testing nonlinear dependence in cases whe...
Reference 1. Dreher CE, Cummings ME, Pröhl H (2015) An Analysis of Predator Selection to Affect Aposematic Coloration in a Poison Frog Species. PLoS ONE 10(6): e0130571. doi: 10.1371/journal.pone.0130571 PMID: 26110826 Fig 4. Correlation between dorsal overall conspicuousness of local frogs for avian eyes and avian predation on clay frogs across frog populations. The correlation is highly signi...
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