Heteroskedasticity is an important concept in regression modeling, and in the investment world, regression models are used to explain the performance of securities and investment portfolios. The most well-known of these is theCapital Asset Pricing Model (CAPM), which explains the performance of a st...
The easiest way to explain how the fractional encoder (with B = 2) works is through a simple example. Consider the rational number 5.8125. It has a finite binary expansion 5.875 = 22 + 20 + 2−1 + 2−2 + 2−4 . First we take the integer part and encode it as usual with ...
While face validity has been criticized for being a “loose concept”, it has also been praised as a way to establish whether data is “fit for purpose” (OECD, 2017, p60). We therefore believe that our proposed diagnostic check, while possibly an over-simplification, can play a role in...
allows the integration of multiple omics, i.e., it includes exploratory analysis able to explain the typology of individuals described by omics and/or characters simultaneously obtained at different levels of the living organisms; does not only include a single and straight analysis workflow but allo...
Using a kernel is not the only way to create a nonlinear classifier based on the perceptron. In fact, kernel functions are a recent development in machine learning. Previously, neural network proponents used a different approach for nonlinear classification: They connected many simple perceptron-like...
One-way repeated measures analysis of variance (ANOVA) was applied to analyze VA and reading performance parameters. Bonferroni corrected post-hoc multiple comparisons between refractive conditions were used and were corrected. Statistical analysis was performed using SPSS (SPSS 26.0, IBM Corp., New ...
Explain the role of inferential statistics in research design and hypothesis testing. When doing regression analysis, do we need to consider outliers? Why or why not? Describe how the mean, mode, median, range, and standard ...
What are the assumptions, sufficient to guarantee that the market portfolio is an efficient portfolio? In the CAPM, is there any way to identify the investors, who are more risk averse? Explain. How w Why is the CAPM's assumption that investors can borrow and lend at the...
If the best hit using Px as a query happens to be P, then both P and Px are selected as orthologous proteins in step four. If orthologs were detected for an interacting P and target gene then the interaction is transferred in GoI in the final step. Note that this automated way of ...
That is not the right way to think about it. Let me explain. In Python, you normally get the count of columns to reference the column by column index or do some iterations. Whereas in SQL, we reference the columns by the respective column names. All the operations we do is vectorised...