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Hi,
I am using jfreechart to draw the graphs. I need to show the value when the cursor is placed on the graph.
Thanks in advance
Answer Snippets (Read the full thread at stackoverflow):
For example, using a XyToolTipGenerator with an XYItemRenderer may do ... .
There a series of chart specific tooltip interface/classes in the org.jfreechart.labels package .
I've never used jfreechart tooltips before, but that maybe what you're looking for .
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Using numpy or python's standard library, either or. How can I take a value with several decimal places and truncate it to 4 decimal places? I only want to compare floating point numbers to their first 4 decimal points.
Started by Chris on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Round(a_float, 4)
>>> help(round) Help on built-in....
You can use decimal module, especially the part on getcontext().prec
If you want to compare two floats, you can compare on abs(a-b) < epsilon where epsilon is your precision requirement .
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I understand that when we insert values into the STL map, a copy is made and stored. I have code that essentially does a find on the map and obtains an iterator.
I then intend to use the iterator to change the value in the map. The results are not what...
Started by Pradyot on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
The thing you want is the thing refered to by it->second, so you need something... .
Get<3>(it->second) = value ;
This would seem to make a cast/function/constructor call and then assign to the return value, which would be a temporary.
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Newbie programmer question - When displaying the value of a decimal currently (with .ToString()..), it's accurate to like 15 decimal places, and since I'm using it to represent dollars and cents, I only want the output to be 2 decimal places. Do I use...
Started by wows on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
Decimal value = 1.2345; string rounded = value.ToString("d2");
See .NET Format String Cheat Sheets.
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I an using Session for storing UserName for whole project. But it always time out before 20 min. I want set value in properties and want to use in project but when my page is loading again its showing null value.
How can i save this value in this?
Code...
Started by Pankaj Mishra on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Return Session["UserName"] as string; } set { Session["UserName"] = value; } }.
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Hi all,
Using PHP, and MySql, I am trying to implement this rather snazzy in-place editor available here:
tutorial: http://www.davehauenstein.com/code/jquery-edit-in-place/
js file: http://davehauenstein.com/code/scripts/jquery.inplace.min.js
OK what ...
Started by Lea on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Your forgot something in the update.php :) Every In Place Editor does an AJAX request to the update/functions.php'); $name = $_POST[update_value]; $update = mysql_query("UPDATE profilevalues SET['update_value']; //add this to your....
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This is a Java related question. If I create a new HashMap and a new List, and then place the List inside the Hashmap with some arbitrary key and then later call List.clear() will it affect what I've placed inside the hashmap? The deeper question here...
Started by Diego on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
Geeze people...everything in Java is pass by value....
Adding the list to the hash map simply adds the reference see http://javadude.com/articles/passbyvalue.htm for details on pass-by-value in Java.
Java is pass-by-reference-by-value.
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Hi,
I want to ask if anybody know the query to drop the 0 value in decimal..
E.g : A field name percent have these values
Percent 770. , 340.67 , 96. , 4400.56 , 109.89 , 109. , 37. ,
Currently I'm using the query "select cast([Percent] as decimal(9,2...
Started by rathu on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
I think you should postpone that representation to where it makes more sense (report .
For a value...
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In C++ you can use std::numeric_limits<FloatingPointType>::digits10 to find out exactly how many places of precision you can get before the decimal place. How do I find out how many decimal places I can get following it, if I know the number will...
Started by Geoff on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
The C++.
For the number of exact digits, so there is no distinction between before and after the decimal place.
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Hi,
I am extracting double data from sqlite3 database. But I want to display it only upto two decimal places. So how to truncate it.
Started by rkbang on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
It formats numbers..
Use sprintf formatting with NSString: [NSString stringWithFormat: @"%.2f", myValue];
See NSNumberFormatter .
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