row

问题 I have a matrix lets say: A=[1 2 1; 5 6 7; 7 8 9] and I want to extract its rows in the following format: x_1=[1 2 1] x_2=[5 6 7] x_3=[7 8 9] I want to know how I can write x_1 , x_2 , x_3 . I know how to extract the rows but I don't know how to make my x_1 , x_2 and x_3 . I want this to be automatic , because my real matrix has a very large size and I don't want to make x_1 x_2 .. x_100 by hand. 回答1: You can try the following: m = size(A,1); for i=1:m % set the variable name varName =

问题 I am quite the noob at MySQL and PHP/Cron Jobs so if you all could explain it easily as in where to put the event, etc, that'd be great, anyways, on with the question. Question: I have a table called my_Table and it has an entry with 3 fields: name,age,timestamp. So one row has this for instance. Sam | 20 | whateverthetimeis. Now, when that row reaches 30 minutes old, I want it to be deleted, same with any other rows that hit 30 minutes, thank you all for the help, I have read the other

问题 I am quite the noob at MySQL and PHP/Cron Jobs so if you all could explain it easily as in where to put the event, etc, that'd be great, anyways, on with the question. Question: I have a table called my_Table and it has an entry with 3 fields: name,age,timestamp. So one row has this for instance. Sam | 20 | whateverthetimeis. Now, when that row reaches 30 minutes old, I want it to be deleted, same with any other rows that hit 30 minutes, thank you all for the help, I have read the other

问题 I want to create a table into variable something that looks like actual csv file: Length Price Code 10.05 0.78 AB89H 20 5 HB20K This is something that What I do to every function I am working with So maybe I can do it once perhaps... tree_file.readline() # skip first row for row in tree_file: field=row.strip() field=field.split(",") #make Into fields price=int(field[1]) I want a function that create a table from csv file so I can use this table for all my other function. So I don't have to

问题 I am working on a simple order system. the peice of code I am stuck on is the following: if (isset($_GET['cart'])) { $cart = array(); $total = 0; foreach ($_SESSION['cart'] as $id) { foreach ($items as $product) { if ($product['id'] == $id) { $cart[] = $product; $total += $product['price']; break; } } } include 'cart.html.php'; exit(); } This is the code is build on a preset array. I am working with a table with a few columns in mysql. I have decided on the following: if (isset($_GET['cart'])

问题 I took an html table that I am applying alternative row colors to, and I added jquery table sorter on it so users can sort the table. The issue is that the alternative row colors are all messed up now as (based on the sorting) there are multiple rows with the same background color. Is there any way to reset the alternative row color with jquery table sorter? 回答1: There's already a default widget zebra , built into the core, which applies the classes odd and even to alternate rows. It works

问题 I can find lots of information about merging two DataTables and dropping duplicate rows, but I need the opposite. I need to know if anyone has an easy way to merge two DataTables where the result of the merge is a DataTable with only rows that exist in both tables. 回答1: Like this: var intersection = table1.AsEnumerable() .Intersect(table2.AsEnumerable(), DataRowComparer.Default); DataRowComparer compares rows by their column values. 来源： https://stackoverflow.com/questions/6833454/c-sharp

问题 I want to ask you guys, how to change color of a row to red in Excel table if the cell 1 isn't null. XX YY ZZ ----------------- aa bb cc aa1 bb1 cc1 aa2 cc2 aa3 bb3 cc3 aa4 Excel.Application xlApp; Excel. Workbook xlWorkBook; Excel.Worksheet xlWorkSheet; I'm very thankfull 回答1: Give this a shot, I have tested it and it works: Excel.Application application = new Excel.Application(); Excel.Workbook workbook = application.Workbooks.Open(@"C:\Test\Whatever.xlsx"); Excel.Worksheet worksheet =

问题 I use this CSS code to display a database output in rows where the colors repeat in every 2nd row tbody tr:nth-child(2n) td, tbody tr.even td { background: none repeat scroll 0 0 #E5ECF9; } If I open it in my IE it won't work. Any advice? I am using IE 8. 回答1: IE8 does not support the :nth-child CSS property. You can make it work in IE8 with this script: https://github.com/roylory/ie7-js How to use it: You can Include it via conditional comments, e.g.: <!--[if lte IE 9]> <script src="IE9.js">

问题 I need to lookup the value of something in a table and then return the row that it's in. The value can be in any column, so Match doesn't seem ideal. What's the best way to do this? As an example, say the table has 2 columns. Column 1 has A, B, C, D. Column 2 has E, F, G, H. I want to find out which row "G" is in, so I want to somehow return "3" without knowing beforehand that "G" is in column 2. 回答1: Please try: =IFERROR(MATCH("g",A:A,0),MATCH("g",B:B,0)) and so on if more columns. 回答2: