Collect  your data on digital marketing campaigns from bing Ads using the 'Windsor.ai' API <https://windsor.ai/api-fields/>.

Methods for estimation and hypothesis testing of proportions
 in group testing designs: methods for estimating a proportion in a single
        population (assuming sensitivity and specificity equal to 1 in designs
        with equal group sizes), as well as hypothesis tests and
        functions for experimental design for this situation. For
        estimating one proportion or the difference of proportions, a
        number of confidence interval methods are included, which can
        deal with various different pool sizes. Further, regression
        methods are implemented for simple pooling and matrix pooling
        designs.
        Methods for identification of positive items in group
        testing designs: Optimal testing configurations can be found 
        for hierarchical and array-based algorithms. Operating 
        characteristics can be calculated for testing configurations 
        across a wide variety of situations.

Methods for the group testing identification problem: 1) Operating 
    characteristics (e.g., expected number of tests) for commonly used 
    hierarchical and array-based algorithms, and 2) Optimal testing 
    configurations for these same algorithms. Methods for the group testing 
    estimation problem: 1) Estimation and inference procedures for an overall 
    prevalence, and 2) Regression modeling for commonly used hierarchical and 
    array-based algorithms.

Consider an at-most-K-stage group sequential design with only an upper bound for the last analysis and non-binding lower bounds.With binary endpoint, two kinds of test can be applied, asymptotic test based on normal distribution and exact test based on binomial distribution. This package supports the computation of boundaries and conditional power for single-arm group sequential test with binary endpoint, via either asymptotic or exact test. The package also provides functions to obtain boundary crossing probabilities given the design.