862 2006-05-19 6.241603 5.774208
863 2006-05-20 NA NA
864 2006-05-21 NA NA
865 2006-05-22 6.383929 5.906426
866 2006-05-23 6.782068 6.268758
867 2006-05-24 6.534616 6.013767
868 2006-05-25 6.370312 5.856366
869 2006-05-26 6.225175 5.781617
870 2006-05-27 NA NA
I have a da...
Short version:
How can I map two columns from table A and B if they both have a common identifier which in turn may have two values in column C
Lets say:
A
---
1 , 2
B
---
? , 3
C
-----
45, 2
45, 3
Using table C I know that id 2 and 3 belong to the same item ( 45 ) and thus "?" in table B should be 1.
What query could do ...
I am having a problem with data not updating on the CRM at my wife's office.
Scenario:
User loads the app.
Data from the DB populates the master view.
User opens edit screen.
Data is populated for the correct detail item.
User changes a value (on any field).
The save button becomes active with
the data change.
The user clicks ...
Is there a variant of lag somewhere that keeps NAs in position? I want to compute returns of price data where data could be missing.
Col 1 is the price data
Col 2 is the lag of price
Col 3 shows p - lag(p) - the return from 99 to 104 is effectively missed, so the path length of the computed returns will differ from the true.
Col 4 shows...
I have a very simple page that is displaying canned data. I experienced this problem with data from a DB so I made this simple example and still have the issue. When this page is navigated to for the first time for a session, the first column in the first row shows no data.
It doesn't matter if I change the scope to request or session...
Given these tables
table Channel
--------------
ChannelID int IDENTITY
<other irrelevant stuff>
table Program
--------------
ProgramID int IDENTITY
ChannelID int
AiringDate datetime
<other irrelevant stuff>
and this query
SELECT C.ChannelID, t.AiringDate
FROM
Channel C
LEFT JOIN (
SELECT distinct ChannelID
FROM Pr...
I hope I am not missing something very simple here. I have done a Google search(es) and searched through stackoverflow.
Here is the situation: For simplicity's sake let's say I have a table called "PeoplesDocs", in a SQL Server 2008 DB, that holds a bunch of people and all the documents that they own. So one person can have several ...
I have the following table which records a value per day. The problem is that sometimes days are missing. I want to write a SQL query that will:
Return the missing days
Calculate the missing value using linear interpolation
So from the following source table:
Date Value
--------------------
2010/01/10 10
2010/01/11 ...
I have a remote that is the same, or similar, to the rails project in my current directory. To sync the two, I do
git init
git remote add origin blah@blah
git pull
The problem is that some of the files I had in my working copy were added (ie not in the remote), so when I do
git status
it should show a bunch of untracked files. Ins...
I am attempting to take a screenshot of a window using C# .NET by calling Windows API. I came up with the following code:
public void ScreenshotWindow(IntPtr windowHandle) {
Rect Rect = new Rect();
GetWindowRect(windowHandle, out Rect);
int width = Rect.right - Rect.left;
int height = Rect.bottom - R...
Hello,
I have cell array each containing a sequence of values as a row vector. The sequences contain some missing values represented by NaN.
I would like to replace all NaNs using some sort of interpolation method, how can I can do this in MATLAB? I am also open to other suggestions on how to deal with these missing values.
Consider t...