Meet Jim West: How we help our AML customers succeed
Meet Jim West in our first post in the new Humans of SAS Services series.
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Demand Planning in Life Sciences During COVID-19
The COVID-19 pandemic has revealed the vulnerability of pharmaceutical supply chains. Pharma companies are focusing on risk management to improve the resilience of their networks. Most of the measures they will take, including on-shoring, over capacities and redundancies, will lead to higher costs. To decrease inventory levels across these new
Pooled, within-group, and between-group covariance matrices
A previous article discusses the pooled variance for two or groups of univariate data. The pooled variance is often used during a t test of two independent samples. For multivariate data, the analogous concept is the pooled covariance matrix, which is an average of the sample covariance matrices of the