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Dear Md Kamruzzaman, I've copied this response to the r-help list, where you originally asked your question. That way, other people can follow the conversation, if they're interested and there will be a record of the solution. Please keep r-help in the loop See below: On 2024-01-17 9:47 p.m., Md. Kamruzz...

Well, something like: LAP <- ifelse(gender =='male', (WC-65)*TG, (WC-58)*TG) The exact code depends on whether your variables are in a data frame or list or whatever, which you failed to specify. If so, ?with may be useful. Cheers, Bert On Fri, Nov 3, 2023 at 3:43?AM Md. Kamruzzaman <mkzaman.m at gmail.com> wrote: > Hello Everyone, > I have three variables: Waist circumference (WC), serum triglyceride (TG) > level and gender. Waist circumference and serum triglyceride is numeric and > gender (male and female) is categorical. From these three variables, I wan...

Dear Md Kamruzzaman, To answer your second question first, you could just use the svychisq() function. The difference-of-proportion test is equivalent to a chisquare test for the 2-by-2 table. You don't say how you computed the confidence intervals for the two separate proportions, but if you have their stand...

...0.1 (95%CI 9.4-10.9) Diff: 0.9% (95%CI: ??) Proportion Z test P Value: ?? Your cooperation will be highly appreciated. Thanks in advance. With Regards *--------------------------------* *Md Kamruzzaman* *PhD **Research Fellow (**Medicine**)* Discipline of Medicine and Centre of Research Excellence in Translating Nutritional Science to Good Health Adelaide Medical School | Faculty of Health and Medical Sciences The University of Adelaide Adelaide SA 5005 [[alternative HTML version deleted]]

...C-65)*TG, (WC-58)*TG)) That will do both calculations and merge the two vectors appropriately. It will use extra memory, but it should be much faster than a 'for' loop. Regards, Jorgen Harmse. ------------------------------ Message: 8 Date: Fri, 3 Nov 2023 11:10:49 +1030 From: "Md. Kamruzzaman" <mkzaman.m at gmail.com> To: r-help at r-project.org Subject: [R] I need to create new variables based on two numeric variables and one dichotomize conditional category variables. Message-ID: <CAGbxoeGjsxZKQ6qijEMq-X-5doqnQQS1jjPDDrGT6hH5xWqOKQ at mail.gmail.com> C...

...females. I am giving both equations below. LAP for male = (WC-65)*TG LAP for female = (WC-58)*TG My question is 'how can I calculate the LAP and create a single new column? Your cooperation will be highly appreciated. Thanks in advance. With Regards *--------------------------------* *Md Kamruzzaman* *PhD **Research Fellow (**Medicine**)* Discipline of Medicine and Centre of Research Excellence in Translating Nutritional Science to Good Health Adelaide Medical School | Faculty of Health and Medical Sciences The University of Adelaide Adelaide SA 5005 [[alternative HTML version deleted]]

...C-65)*TG, (WC-58)*TG)) That will do both calculations and merge the two vectors appropriately. It will use extra memory, but it should be much faster than a 'for' loop. Regards, Jorgen Harmse. ------------------------------ Message: 8 Date: Fri, 3 Nov 2023 11:10:49 +1030 From: "Md. Kamruzzaman" <mkzaman.m at gmail.com> To: r-help at r-project.org Subject: [R] I need to create new variables based on two numeric variables and one dichotomize conditional category variables. Message-ID: <CAGbxoeGjsxZKQ6qijEMq-X-5doqnQQS1jjPDDrGT6hH5xWqOKQ at mail.gmail.com> C...

...C-65)*TG, (WC-58)*TG)) That will do both calculations and merge the two vectors appropriately. It will use extra memory, but it should be much faster than a 'for' loop. Regards, Jorgen Harmse. ------------------------------ Message: 8 Date: Fri, 3 Nov 2023 11:10:49 +1030 From: "Md. Kamruzzaman" <mkzaman.m at gmail.com> To: r-help at r-project.org Subject: [R] I need to create new variables based on two numeric variables and one dichotomize conditional category variables. Message-ID: <CAGbxoeGjsxZKQ6qijEMq-X-5doqnQQS1jjPDDrGT6hH5xWqOKQ at mail.gmail.com> C...