formula

问题 I have an lm object and want to get the formula extracted with coefficients. This object includes categorical variables like month, as well as interactions with these categorical variables and numeric ones. Another user helped with some code that works for all but the categorical variables, however when I add a categorical variable (eg. d here) it breaks down and gives the error "Error in parse(text = x) : :1:785: unexpected numeric constant": a = c(1, 2, 5, 13, 40, 29, 82, 22, 34, 54, 12, 31

问题 I have an lm object and want to get the formula extracted with coefficients. This object includes categorical variables like month, as well as interactions with these categorical variables and numeric ones. Another user helped with some code that works for all but the categorical variables, however when I add a categorical variable (eg. d here) it breaks down and gives the error "Error in parse(text = x) : :1:785: unexpected numeric constant": a = c(1, 2, 5, 13, 40, 29, 82, 22, 34, 54, 12, 31

问题 We are building a java code to read word document (.docx) into our program using apache POI . We are stuck when we encounter formulas and chemical equation inside the document. Yet, we managed to read formulas but we have no idea how to locate its index in concerned string.. INPUT (format is *.docx ) text before formulae **CHEMICAL EQUATION** text after OUTPUT (format shall be HTML ) we designed text before formulae text after **CHEMICAL EQUATION** We are unable to fetch the string and

问题 the user is able to enter either a number or a name into a cell. When i put a number, sumproduct is working fine, but when i want it to check if the name of a named range is inside the cell, it doesn't return anything. =SUMPRODUCT((Data!A:A=A7)*((Data!C:C=V7)+(Data!C:C=W7)),Data!H:H) Data!A:A is an accountnumber and Data!C:C is the countryID. Data!H:H is the sales that need to be added up. I have a few named ranges with number attached to them FirstRange: 4, 12, 15 SecondRange: 7, 38, 65 How

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 9 years ago . I got this formula from a data structure book in the bubble sort algorithm. I know that we are (n-1) * (n times), but why the division by 2? Can anyone please explain this to me or give the detailed proof for it. Thank you 回答1: See triangle numbers. 回答2: Start with the triangle... * ** *** **** representing 1+2

问题 I wanted to know if able to paste the result of the formula below into a value in VBA. I would like to copy the formula from my temporary workbook and paste it in another workbook. =LEFT(C32,SEARCH("invoice",C32,1)-1) 回答1: Yes. Here is an example Range("A32").Formula = "=LEFT(C32,SEARCH(""invoice"",C32,1)-1)" Range("A32").Value = Range("A32").Value '~~> This will convert the formula into value 来源： https://stackoverflow.com/questions/20119277/copy-and-paste-formula-result-as-value

问题 How can I write a modulus that will select the following iterations in sequence? 1, 4, 5, 8, 9, 12, 13 etc (+3+1r) I'm working within a loop and counting posts (iterations). So for example, I could catch every third post (1, 4, 7, 10) by:- if ($i % 3 == 1) { echo 'something here'; } But how can I write one that will catch 1, 4, 5, 8, 9, 12, 13? 回答1: I'm not quite sure about your algorithm, but it seems like you try to get every 3rd and 4th post not (starting at 0). The fitting code would be:

问题 I'm attempting to implement Vincenty's inverse problem as described on wiki HERE The problem is that lambda is simply not converging. The value stays the same if I try to iterate over the sequence of formulas, and I'm really not sure why. Perhaps I've just stared myself blind on an obvious problem. It should be noted that I'm new to Python and still learning the language, so I'm not sure if it's misuse of the language that might cause the problem, or if I do have some mistakes in some of the

问题 I'm trying to add a column which calculates percentages of different products in MS Access Query. Basically, this is the structure of the query that I'm trying to reach: Product | Total | Percentage Prod1 | 15 | 21.13% Prod2 | 23 | 32.39% Prod3 | 33 | 46.48% Product | 71 | 100% The formula for finding the percent I use is: ([Total Q of a Product]/[Totals of all Products])*100, but when I try to use the expression builder (since my SQL skills are basic) in MS Access to calculate it.. =

问题 I have a week number in Cell C13 and a year in Cell C14. I am using the below formula to convert this into the Thursday of that week number's date: =DATE(C14,1,-6)-WEEKDAY(DATE(C14,1,3))+C13*7 How could i do the same thing using VBA? 回答1: For a specific year , you can do it like this : DateAdd("ww", WeekNumber - 1, DateSerial(2017, 1, 5)) And to test it : Debug.Print Format(DateAdd("ww", WeekNumber - 1, DateSerial(YearNumber, 1, 5)), "ddd d MMM yy") If others are looking into this and don't