摘要: Use the barplot function. The first argument is a&nbs[阅读全文:]
摘要: You have paired observations: (x1, y1), (x2, y2), ...[阅读全文:]
摘要: If the variables came from normally distributed popu[阅读全文:]
摘要: You want to know if the two populations could&n[阅读全文:]
摘要: you want to form a confidence interval for the p[阅读全文:]
摘要: You have a sample from a population. Given that [阅读全文:]
摘要: select columns from a data frame according to their&n[阅读全文:]
摘要: select columns from a data frame according to t[阅读全文:]
摘要: If your data is captured in several vectors and/or&nb[阅读全文:]
摘要: Use one of these functions as appropriate, assuming t[阅读全文:]
