formula

问题 I've done a fair amount of reading here on SO and learned that I should generally avoid manipulation of formula objects as strings, but I haven't quite found how to do this in a safe manner: tf <- function(formula = NULL, data = NULL, groups = NULL, ...) { # Arguments are unquoted and in the typical form for lm etc # Do some plotting with lattice using formula & groups (works, not shown) # Append 'groups' to 'formula': # Change y ~ x as passed in argument 'formula' to # y ~ x * gr where gr is

问题 Once again I have a question concerning Domino Designer. There are newsletters which should be assigned to several contacts. Therefore I built a form containing a combo box to select the newsletter. Beneath, there is an embedded view containing all available contacts. Combobox: _______________________ | ComboBox Newsletter ⇓| ----------------------- Embedded View: __________________________________ | Name | Lastname | Company | ----------------------------------- John Smith ABC • Anna Tylor

问题 I am trying to group my data based on age. I use the following database select: select * from ( select 0 range_start, 11 range_end, '0-10 days' date_description from dual union select 11, 21, '11-20 days' from dual union select 21, 31, '21-30 days' from dual union select 31, 99999, '31+ days' from dual) date_helper left outer join table on table.date <= date_helper.range_start*-1 + sysdate and table.date > date_helper.range_end*-1 + sysdate I then make a group based on the date_description

问题 When i map columns from the inspected table, i do this: <property name="InstanceName" type="MyNameUserType, MyApp.MyNamespace"> <column name="Name"/> <column name="Name2"/> </property> How can I make property mapping initialize a UserType with data retrieved by the formula's sql query? <property name="InstanceName" type="MyNameUserType, MyApp.MyNamespace" formula="(...)"/> fails with an exception "wrong number of columns". Thanks in advance! 回答1: MyUserNameType should be a class level mapping

问题 Inside my stored function I have : formula := "(10+10 * 1000)/12"; (a simple math formula, with numbers only, dynamically created as a string) How do I eval this, and return the result ? I can't use EXECUTE (not possible inside a stored function) and if I make it a stored procedure and call it from a stored function, I get "Dynamic SQL is not allowed in stored function or trigger" -as if I would have the eval directly inside the function. I need a stored function, and not a procedure, because

问题 I am using Inkscape 0.91 and trying to add Latex math formula inside my graphics. After several hours of tying and fixes from the I am still not able make it work. I am on Windows 7 with the following, 1) pstoedit (pstoeditsetup_win32.exe) 2) GSview 5.0 (gsv50w32.exe) 3) Ghostscript 9.18 (gs918w32.exe) 4) miktex 2.59 64 bit version I have added the PATHs and did all the stuff. I can see the Latex extension as well but whenever I try to use it I face the following error: "Problem during

问题 I am trying to lookup a col4 value when, in the same row, col1, col2 and col3 each match. I referenced this SO Post as it is a similar question but that solution is not working for me. I am searching for specific Source s, on specific Date s, with specific Status s and want to return the corresponding Count s. My data with examples of output required: 回答1: May not be preferred approach and might not even give the correct answer but for anyone new to PivotTables the sooner they are comfortable

问题 I have a conditional formatting with cells like =COUNTIF(A3:H2663;R5) If the value entered into R5 is found elsewhere, the box will then turn red. However, sometimes it's not an exact match, and then it doesn't recognize it. That may be because of an extra figure at the end of the entered number. So my question is: can I change the formula to make a match, if the cells from A3:H2663 simply contain the value in R5 , and isn't an exact match? 回答1: With the COUNTIF() function, you can use

问题 I had a quick question, I have 2 cells in a spreadsheet row. If their difference, expressed as a percentage, is greater than zero but less than 9, I would like them to be yellow. Anything over 9 would be shaded in red. I looked at conditional formatting and this appears to be correct, but I can't seem to nail down the syntax. I also would like both the cells to be tested for zero values. If the cells are zero, I do not want to apply a format. Can anyone get me started with this? I had

问题 i have a specific problem to solve. I dont know how to do it but want to do it without macro or worse without VB script. I will explain what i have and then what i want to do. I have (plan to have) many sheets in worksheet. first sheet is some intro sheet, where i have also one column containing name of sheets in every cell. i am using formula "=MID(CELL("filename",A1),FIND("]",CELL("filename",A1))+1,256)" so i can change name of sheet and it will change also name of sheet in intro sheet cell