row

问题 I've got a DataTable in which there could be values in a column which looks like x:1 x:2 a:1 a:2 etc... but they could also look like x* or a* . In my code I'm getting a full value to search for (for example x:1 ), but the row itself can contain a value like x* in that column. can i somehow use the Select method to search for the row? for now it looks something like this: strSelect = string.Format("[{0}]='{1}'", colName, ValueToSearch); rows = tempTable.Select(strSelect); but of course that

问题 My question is how can I find an intersecting cell of a specific column and row number? My situation is this: with some calculations I find two cells, lets say B6 and E1 . I know that I need a row of the first one and a column of the second one. So I could just use ROW and COLUMN functions to get the numbers. After that, I need to find an intersecting cell. Which would be E6 in this example. I would just use INDEX(A1:Z100;ROW;COLUMN) but I don't know the exact area that I'm going to need - it

问题 I am wanting to set up an excel spreadsheet for data entry with a barcode scanner. The barcode scanner sends the barcode then a tab OR an enter key depending how its programmed. Basically I want to set up an excel sheet that we can scan 6 barcodes for each item, with the scanner tabbing to the next column each time, then when it reaches the 6th column the next tab will make it move to a new line for the next product. I hope this makes sense. It can be done in MS word... e.g if you create a

问题 I am wanting to set up an excel spreadsheet for data entry with a barcode scanner. The barcode scanner sends the barcode then a tab OR an enter key depending how its programmed. Basically I want to set up an excel sheet that we can scan 6 barcodes for each item, with the scanner tabbing to the next column each time, then when it reaches the 6th column the next tab will make it move to a new line for the next product. I hope this makes sense. It can be done in MS word... e.g if you create a

问题 Say I have an an array of numbers: int[] that = new [] {1, 2, 3, 2, 4, 8, 9, 7}; I'm trying to display them so that the numbers that are increasing have their own line. For example the result would be: 1 2 3 2 4 8 9 7 I'm able to do the first row using, for (int i = 1; i < that.Length; i++) { if (that[i-1] < that[i]) { Console.Write(that[i-1] + " "); } } The thing is this works for the first row because 1-3 are increasing but stops after that. I'm not exactly sure how to continue so that 2 4

问题 How can I delete a certain row from a matrix depending on the 1st column value? For example: A=[1 2 3;3 4 5;5 6 7] where the values of the first column represent the ids and I want to delete the row that has 5 as an id. I already know that A(3,:)=[] deletes the third row, but what if I have the id and don't know the row number? 回答1: You can use find : id=5; A(find(A(:,1)==id),:)=[] A = 1 2 3 3 4 5 Note that, as mentioned by Divakar, thanks to logical indexing you can even omit the find : A(3,

问题 I need to produce mailing labels for my company and I thought I would do a query for that: I have 2 tables - tblAddress , tblContact . In tblContact I have " addressNum " which is a foreign key of address and " labelsNum " column that represents the number of times the address should appear in the labels sheet. I need to create an inner join of tblcontact and tbladdress by addressNum , but if labelsNum exists more than once it should be displayed as many times as labelsNum is. 回答1: I suggest

问题 I am trying to take a csv, and read it as a Pandas Dataframe. This Dataframe contains 4 rows of numbers. I want to pick a specific row of data from the Dataframe. In a While Loop, I want to select a random row from the Dataframe, and compare it to row that I picked. I want it to continue to run through the while loop until that random row, is 100% equal to the row I picked prior. Then I want the While Loop to break and I want it to have counted how many tries it took to match the random

问题 I understand that pandas is designed to load completely filled dataframes, but I want to add single rows to to the data frame under specific condition. Following is the df I am dealing with ProjID Xcoord Ycoord 0 2 some_val some_val 1 2 some_val some_val 2 2 some_val some_val 3 2 some_val some_val 4 2 some_val some_val 5 3 some_val some_val 6 3 some_val some_val 7 5 some_val some_val 8 5 some_val some_val 9 5 some_val some_val What I want is to insert a row in the df with value 0 for every

问题 i have the following excel file, and i would like to clean specific rows/columns so that i can further process the file. I have tried this, but i have not managed to remove any of the blank lines, i ve only managed to trim from those containing data. Here, i was trying to only save the data from the third row and on. xl = pd.ExcelFile("MRD.xlsx") df = xl.parse("Sheet3") df2 = df.iloc[3:] writer4 = pd.ExcelWriter('pandas3.out.no3lines.xlsx', engine='xlsxwriter') table5 = pd.DataFrame(df2)