by saspower | Feb 19, 2024 | SAS Online Course in India
Statistical analysis of clinical trial data with SAS often consists of many phases. First, data cleaning and validation are performed to verify data accuracy. The data is then summarised using descriptive statistics. Next, inferential statistics, such as hypothesis...
by saspower | Feb 17, 2024 | Data Science Online Course
There are various approaches for identifying outliers in time series data. One typical strategy is to employ statistical approaches like the z-score or modified z-score method, in which data points that exceed a given threshold are marked as outliers. Another...
by saspower | Feb 16, 2024 | SAS Online Course in India
Logistic regression is a statistical approach used for binary classification problems in which the result variable is categorical and has two alternative outcomes, usually recorded as 0 and 1. Unlike linear regression, logistic regression predicts the likelihood of...
by saspower | Feb 15, 2024 | SAS Online Course in India
Skewness in data happens when the value distribution is asymmetric, with one side having a larger tail than the other. Outliers can contribute to skewness, but they are not the only source. Skewness can also be caused by inherent data properties, such as non-normality...
by saspower | Feb 14, 2024 | SAS Online Course in India
There are various model options for nonlinear regression problems, with selection determined on data attributes and modelling aims. Polynomial regression extends linear regression by include polynomial terms that can capture non-linear connections. Generalised...
