Finding the average value of related structure keys

Issue:
I have a form structure which I need to find the value
averages of all the *AGE keys, *MINORS keys, and *ADULTS keys.
Here's my example form structure, after using
structkeyarray() of coarse:
1 RES_ROOM2_MINOR3_AGE
2 RES_ROOM1_MINORS
3 RES_ROOM2_MINOR1_AGE
4 RES_ROOM1_MINOR2_AGE
5 RES_ROOM3_MINOR1_AGE
6 RES_ROOM2_MINORS
7 RES_ROOM3_MINOR2_AGE
8 RES_ROOM3_ADULTS
9 RES_ROOM3_MINORS
10 RES_ROOM1_ADULTS
11 RES_ROOM2_ADULTS
12 RES_ROOM1_MINOR1_AGE
13 RES_ROOM2_MINOR2_AGE
Question:
How should I AT LEAST go about pulling out each set of keys
so i can procede to find the mean?

Such as...
cfset keys = structkeylist (form)
- cfloop index='x' list='keys'
- - cfif x contains AGE/MINORS/ADULTS blah
- - cfset blah
- /cfloop
I guess that should definitely work. Simple no less. I got
caught up
looking for a special function to run through the structure.
Thanks for
shaking my head up, and sending me on my way. ;-)
That's the idea. If you care, you can use the collection form
of the
<cfloop...> tag. Eliminates the need to pull out the
list of keys
separately.
<cfloop collection="#form#" item="field">
<cfif field contains "AGE|MINORS|ADULTS|Ect">
process
</cfif>
</cfloop>

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               catch(ClassCastException cce)
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     It compiles fine but when I try and run it I get a
Exception in thread "main" java.lang.NullPointerException
     at statistics.StoreValuesDouble.MinDouble(StoreValuesDouble.java:139)
     at statistics.TestStatDouble.main(TestStatDouble.java:37)
TestStatDouble 37 is
System.out.println("The lowest value is " + is.MinDouble());139 is
if (currentValue <= MinDouble) {I guess the problem's in my if loop but I'm not sure why. Any help would be appreciated.
Message was edited by:
Ali_D

Couple of points about your code:
1. Don't declare your instance variables as solid types, declare them using their interfaces (where applicable), so in your case don't specifiy that you are using Vector or Hashtable, use List and Map. This will allow you to easily change your code to use a different collection, if and when appropriate. Also the unnecessary overhead of Vectors synchronisation means that you should use ArrayList instead of vector (that means that you will have to use get(int) instead of elementAt() but that's a very small price to pay.
2. Declare local variables as close to their point of usage as possible. (Unless you need to do this for your course work, in which case you don't have a choice).
3. Use the appropriate data type. For your count of null values you should be using an int or a long (you can't have a fractional count value!) Also, this should have been obvious to you, when you had to cast the value to an int for use with your lists. (Using double as an index is a very bad idea... And before you go posting the question, do a search on why floating point precision may not give you the results you expect)
4. Code defencively... e.g. in your meanDouble() method, you set nonNull to 0, and then you do a division using that value. What do you think is going to happen if your loop doesn't execute once? Division by zero... You should handle these cases, rather than letting them fail ignominiously.
5. If you are doing code like this...    if (currentDouble != null) {
        // / nothing to do
    } else {
        nbNull++;
    } Why have the empty block? You should just do the inverse.
    if (currentDouble == null) {
        nbNull++;
    } Far simpler, and expresses exactly what you are trying to do, not what you are not trying to do.
6. Enumeration --- What version of java is that course being run in? I can see that you are using autoboxing, so it has to be 1.5 so, WHY is your lecturer encouraging the use of Vectors, Hashtables, and Enumerations!?!?!
Anyway, that should be enough to be going on with.

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Hi there :)
I started learning Java a few days ago and have now run into my first problem :p
I am using Netbeans on Mac OS X.
I need to find the smallest value from an array. So far I've had no luck. Any suggestions would be fantastic.
The code so far:
* Math Problems
* Created on May 4, 2007, 10:54 AM
* PROJECT 1: - IN PROGRESS
* Create a program that allows you to create an integer array of 18 elements with the following values
* 3, 2, 4, 5, 6, 4, 5, 7, 3, 2, 3, 4, 7, 1, 2, 0, 0, 0
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* - The program computes the average and stores it in element 16                                              // COMPLETED
* - The program finds the smallest value from the array and stores it in element 17
* PROJECT 2: - TO DO
* Write a program that accepts from the command line and prints them out. Then use a for loop to print
* the next 13 numbers in the sequence where each number is the sum of the previous two. FOR EXAMPLE:
* - input>java prob2 1 3
* - output>1 3 4 7 11 18 29 47 76 123 322 521 843 1364
* PROJECT 3: - TO DO
* Write a program that accepts from the command line two numbers in the range from 1 to 40. It then
* compares these numbers against a single dimension array of five integer elements ranging in value
* from 1 to 40. The program displays the message BINGO if the two inputted values are found in the array
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* -        Bokya!      // This message if 3 and 29 are not found in the array
* -        The array was 7 5 25 5 19 30
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package mathproblems;
* @author Mohammad Ali
public class Main {
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            else { D = A[1]; }
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            else { D = A[2]; }
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}The code is incomplete, but it works so far. The problem is I know there must be an easier way. SAVE ME :)

OK :)
Just thought I should show you the output as to help anyone else with the same problem:
* Math Problems
* Created on May 4, 2007, 10:54 AM
* PROJECT 1: - IN PROGRESS
* Create a program that allows you to create an integer array of 18 elements with the following values
* 3, 2, 4, 5, 6, 4, 5, 7, 3, 2, 3, 4, 7, 1, 2, 0, 0, 0
* - The program computes the sum of elements 0 to 14 and stores it in element 15                              // COMPLETED
* - The program computes the average and stores it in element 16                                              // COMPLETED
* - The program finds the smallest value from the array and stores it in element 17                           // COMPLETED
* PROJECT 2: - TO DO
* Write a program that accepts from the command line and prints them out. Then use a for loop to print
* the next 13 numbers in the sequence where each number is the sum of the previous two. FOR EXAMPLE:
* - input>java prob2 1 3
* - output>1 3 4 7 11 18 29 47 76 123 322 521 843 1364
* PROJECT 3: - TO DO
* Write a program that accepts from the command line two numbers in the range from 1 to 40. It then
* compares these numbers against a single dimension array of five integer elements ranging in value
* from 1 to 40. The program displays the message BINGO if the two inputted values are found in the array
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* - input>java prob3 3 29
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* -        Bokya!      // This message if 3 and 29 are not found in the array
* -        The array was 7 5 25 5 19 30
* PROJECT 3 EXTENSION: - OPTIONAL
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package mathproblems;
* @author Mohammad Ali
import java.util.Arrays;
public class Main {
    /** Creates a new instance of Main */
    public Main() {
     * @param args the command line arguments
     public static void main(String[] args) {
              int A[]={3,2,4,5,6,4,5,7,3,2,3,4,7,1,2,0,0,0};
          Arrays.sort(A);
          System.out.println("The smallest value in the array is " + A[0] + ".");
          int num = A.length;
          System.out.println("There are " + num + " values in the Array.");
          int sum = 0;
          for (int i = 0; i < A.length; i++) {
               sum+=A;
          System.out.println("Those numbers add up to " + sum + ".");
          double d = (double)sum/num;
          System.out.println("The average value of those numbers is " + d + ".");
What Iearned:
1) How to create for loops properly
2) How to import java.util.Arrays ( =D )
3) How to get a more accurate average using double instead of int
4) This forum is the best and has very helpful people 24/7 ( =D)
Thanks Again,
Mo.

Finding the average between 2 cursors

Hi. I am using LabVIEW to produce a graph of force against time, and I am using cursors to locate specific points on this graph while the vi is running. I want to find the average force value between selected cursor points (either during or after the run) but I don't know how to do this - can anyone help?

OK, here's a downconverted version. (I have not tested it in 8.2, hopefully it is still intact. ))
(It might need a tweak or two, depending on if you want to include or exclude the cursor positions in the mean calculation. Modify as needed)
Message Edited by altenbach on 11-10-2008 11:55 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
GetCursors82.vi ‏26 KB

How to assign the two values for constant (same key)

How to assign the two values for constant (same key)
CONSTANTS: c_pstkey TYPE bschl VALUE '09',
           c_splgl TYPE umskz VALUE 'I',
           c_buzei TYPE buzei VALUE '001'.
using BSCH1 again i have two asign vaue
can you just let me know
Edited by: sravya_se38 on Nov 23, 2010 12:14 AM

You can create a structure for that constant .
You can define in this way
CONSTANTS : BEGIN OF c_pstkey,
                         01 TYPE bschl VALUE '01',
                         02 TYPE bschl VALUE '02',
                      END OF c_pstkey.
and can access using...
c_pstkey-01, c_pstkey-02 ........

How to find the RGB Values of a Color for Hyperion

When customizing your Hyperion forms, we come across situations where we need the exact RGB value of a given color. This article explains a simple technique to find the RGB values using MS Paint and the Calculator applications that come as standard applications with your operating system.
Here are the steps to find the exact RGB value of a given color.
1) View your Hyperion form using IE, scroll down until you see the color you want to find the RGB value and press the "Print Screen" button (in your keyboard).
2) Open MS Paint and click Edit -> Paste or simply Ctrl+V. What you saw in the browser will be copied as a new untitled image.
3) Select the Color Picker tool and click on an area that has the color you want to match.
4) Now go to Edit Colors... option and click on the "Define Custom Colors >>" button. The color you picked will be selected on this palette. At the bottom right hand corner you will see the Red, Green and Blue values you need. Note down the R,G,B values (given in decimal).
5) Now we need to find out the hexa-decimal values that correspond to those decimal values. This is where we use the simple Calculator. Open the Calculator application from Program -> Accessories. Switch to the scientific mode by clicking View ->Scientific.
6) By default it will be in the decimal number mode. Enter the R value (238 in this example) and click on the Hex radio button. The corresponding hexa-decimal value (EE in this case) will be shown in the dial.
The selected color in this case has the same value for R, G and B. (In fact, all shades of gray has the same values for R, G and B.) Therefore, the RGB value of the background color that we need is #eeeeee. Repeat step 6 to find out the hex value for the Green and Blue elements, if they are different.
Tip:
If you find it difficult to pick a color, zoom the image by pressing Ctrl+PageDown or using View -> Zoom -> Custom... option.

These tips are to find the RGB color of HFM default row where row is text and text lines in data columns are also visible to business users as Yellow as an input cell. By applying the same RGB color you can apply the same color to your data cells or rows. This post shows how to identify color from any web view-able object.
Regards,
Manaf

How to find the PREVIOUS value of a non-DB item?

I want to do a simple thing but found it impossible.
I want to find the previous value of a non-DB item in a form.
I tried creating a text item and populating it using PRE-TEXT-ITEM but that does not work.
WHEN-VALIDATE-ITEM does not work either because WVI fires only after item value has changed.
Any suggestions will be greatly appreciated.
Edited by: Channa on Apr 2, 2010 4:34 AM

Channa wrote:
I want to do a simple thing but found it impossible.
I want to find the previous value of a non-DB item in a form.
I tried creating a text item and populating it using PRE-TEXT-ITEM but that does not work.
WHEN-VALIDATE-ITEM does not work either because WVI fires only after item value has changed.
Any suggestions will be greatly appreciated.
Edited by: Channa on Apr 2, 2010 4:34 AMPlease make it clear what is your requirement then possibly we can provide you a better answer
You can use Global variables for to store old values also on Post-query populate a value in separate field or Parameter

How do I find the closest value to a constant in an array

I have an array of floating numbers and I want to find a value in that array that is closest to a floating constant. For example if I have the array 5.9, 2.8, 3.7, 5.8, 6.9, and if I have the constant 5.4, how would I find the closest value to 5.4 in the array, which in this case would be 5.8. The only approach I can think of is to subtract each value in the array from 5.8 and find the minimum value of an array which would be created from the differences. Is there a better approach?
Thank you.

Just be sure to take the absolute value of the difference and your proposed method is fine.

Finding the average value of related structure keys

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