Standard Deviation In Oracle

Hi,
I have a set of values with me which is retrieved using a query.
I have to calculate mean,median and standard deviation of these values.
Please help me how to implement this in the query.
How do I find standard deviation with these values?
Thanks
Priya

How do I find standard deviation with these values?read about STDDEV in the documentation
oops, ... way too late

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Standard Costs In Oracle

Hello, I am attempting to learn more in regards to how standard costing works in Oracle. Specifically, can anyone tell me... Is there functionality in Oracle where the standard costs automatically adjust themselves and if so, under what conditions can this occurr. I am referring to standard labor hours.
We have this pesky issue where we believe something is causing our standard labor hours to auto update.
Any help would be greatly appreciated!

How do I find standard deviation with these values?read about STDDEV in the documentation
oops, ... way too late

I need to chart a standard deviation of a moving average in Numbers

In order to complete my statistical analysis of a large ammount of performance data- I was to graph a +/- 2 standard deviation of a moving average AS A SHADED region on my charts. I tried to do this today for Four hours. HELP! PLEASE and thank you SO Much!

You stated:
I have the above charted with the $ values of gains
BUT IT LOOKS LIKE THIS. "
implying it is not correct. Since I don't understand what you are trying to do in general terms I don't know what the problem is.
Can you post some of the data (at least the set you are showing) so we have something to work with?
I made a graph like this:
But since I don't really understand what you want I don't know if this is correct or not.
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How to calculate standard deviation of a certain number of points?

Hi, I have an application that I acquire force signals and pu then on a array.
I need to calculate the standard deviation and the mean each a certain number of points, 1000 for example.
I'm having problems with this, if you can help me I'd be thankful.
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Solved!
Go to Solution.

So you need something like this?
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
Unofficial Forum Rules and Guidelines
Attachments:
Std_Deviation.png ‏12 KB

Deviation in oracle 10g

Dear all,
how would we do deviation in oracle 10 g?
i search some links, they said for a folder name oraclehome\ocommon and lnt files, but i did'nt find it.
Thanks

sorry EdStevens
may be i am mis-spelling the word DEVIATION, somehow, for example,
i am here in saudi arabia, i need the saudi arabia governament calendar in the forms.
the saudi arabia local calendar is OMMOL QORA.
when i select this type of calendar, some dates are missing, because the OMMOL QORA calendar is
working on moon. so some months may have 29 days and some have 30.
Since Hijrah month is based on the moon complete revolution around the sun, Hijrah
Calendar has different number of days in a year than Gregorian; therefore some manual
deviation adjustement might be needed for the conversion to/from Gregorian. In other
words HIJRAH calendar is Lunar based, corrections need to be made every so often.
oracle give a solution for that which is called deviation. it is ;
Edit/create lxecal.nlt a file which is called lxecal.nlt , put it into for Oracle 8 up to 9i $ORACLE_HOME/ocommon/nls
for Oracle 10g and up $ORACLE_HOME/nls
shutdown the database
do correction to the deviation file, an example is available on
[http://www.club-oracle.com/forums/nls-setting-in-oracle-10g-database-t1370/]
Run the NLS Calendar Utility lxegen to register your modification to Oracle calendar
system, this utility generates lxecalah.nlb file in the same directory mentioned above.
startup the database.
Best Regards

Upgrading from Oracle 10G standard edition to Oracle 10G enterprise edition

Hi
I want to upgrade from Oracle 10G standard edition to Oracle 10G enterprise edition. Is there any script provided by oracle which I can run on existing Oracle 10G standard edition to upgrade to enterprise edition after completing the licensing formalities or do I need to install Oracle 10g Enterprise edition from scratch and then migrate my data.
Ramanbir S

You will not need to perform any data migration to upgrade to EE. The diffetence between standard en enerprise editions are the features offered. When you upgrade you can use the same set of files you used to install standard edition and just add the enterprise edition features you want to use in the 'Custom' section of the Universal Installer.

Topology creation in standard edition of oracle

I am creating topology in standard edition of oracle and getting error
Please suggest
SQL> EXECUTE SDO_TOPO.ADD_TOPO_GEOMETRY_LAYER('city_data1','LAND_PARCELS1','FEATURE','POLYGON');
BEGIN SDO_TOPO.ADD_TOPO_GEOMETRY_LAYER('city_data1','LAND_PARCELS1','FEATURE','POLYGON'); END;
ERROR at line 1:
ORA-13111: cannot add topo_geometry layer [NSA_TRAINING.LAND_PARCELS1.FEATURE] to topology
ORA-06512: at "MDSYS.MD", line 1723
ORA-06512: at "MDSYS.MDERR", line 17
ORA-06512: at "MDSYS.SDO_TOPO", line 758
ORA-06512: at "MDSYS.SDO_TOPO", line 994
ORA-06512: at line 1

Hi,
For Your information : Topology is licensed only with Spatial option to Enterpise Edition.
BR,
Tomek

Help on standard deviation please

I am writing a program to find standard deviation. Below is what I have so far "not much I know" but I have tried so don't get flame happy. It errors out and I have tried to fix it. I know the formula for standard deviaition but I can't seem to program it right. I also need to program the code to have three methods the main, an Average method, and a standard deviation method. I know how to make a method but I am having trouble on how to call them. Any help would be appreciated. I am not asking anyone to do my work for me just give me some tips. I would rather take a 0 on the assignement and learn later than turn in someone else's work becaue I will never pass my final if I do that.
import java.text.*;
import javax.swing.*;
class StandardDeviation{
     public static void main(String [] args){
     DecimalFormat df = new DecimalFormat("0.00");
     //Average Code Segment
          double [] values = {10,20,30,4,2}; //Assigns numbers to values
          double valueAverage,square, sum = 0;
          for(int i = 0; i < values.length; i ++){
               sum += values;
          valueAverage = sum / 5; //Computes Average
          System.out.println("Average is: " +valueAverage); //Displays average of values to test to see if it worked
//Deviation Code Segment
for (int i = 0; i < values.length; ++i)
double diff = values - valueAverage;
sum+= diff*diff;
System.out.println(+ Math.sqrt(sum/(values.length - 1))); // here I was trying to test to see if my formula worked
I get the following error
java:20: operator - cannot be applied to double[],double
double diff = values - valueAverage;

Okay this code works. Duffymo can you give me some pointers of writing this code using multiple methods? I can write the methods. I just have a hard time grasping the concept of calling them. I have had a hard time learning this in java. I also looked at some of your past posts on Standard Deviation I see what you are saying about the multiple methods. I know that I need a main method that would probably include the values. Then I would have a average method which would call the values to compute the average. Then I would have the StdDev method to compute the Standard deviation method. Any tips on where to begin on this?
mport java.text.*;
import javax.swing.*;
class StandardDeviation{
     public static void main(String [] args){
     DecimalFormat df = new DecimalFormat("0.00");
     //Average Code Segment
          double [] values = {10,20,30,4,2}; //Assigns numbers to values
          double valueAverage,square, sum = 0;
          for(int i = 0; i < values.length; i ++){
               sum += values;
          valueAverage = sum / 5; //Computes Average
          System.out.println("Average is: " +valueAverage); //Displays average of values
          //return valueAverage;
     //Deviation Code Segment
for (int i = 0; i < values.length; ++i)
double diff = values[i]- valueAverage;
sum+= diff*diff;
System.out.println("The Standard deviation is: "+ df.format(Math.sqrt(sum/(values.length - 1))));

Standard deviation in abap

Dear Freinds,
I want to calculate standard deviation of my internal table columns in abap code , please help me how to calculate it .
Thanks,
Naveen

hi,
try this code for calculating it:-
REPORT abc.
DATA : BEGIN OF itab OCCURS 0,
num TYPE i,
END OF itab.
data : std type p decimals 2.
itab-num = 8. APPEND itab.
itab-num = 25. APPEND itab.
itab-num = 7. APPEND itab.
itab-num = 5. APPEND itab.
itab-num = 8. APPEND itab.
itab-num = 3. APPEND itab.
itab-num = 10. APPEND itab.
itab-num = 12. APPEND itab.
itab-num = 9. APPEND itab.
PERFORM stdev changing std..
write :/ std.
FORM stdev CHANGING std.
DATA : mn TYPE p DECIMALS 2.
DATA : sm TYPE i.
DATA : sm2 TYPE i.
DATA : dev TYPE p DECIMALS 2.
DATA : cnt TYPE i.
LOOP AT itab.
sm = sm + itab-num.
cnt = cnt + 1.
sm2 = sm2 + ( itab-num * itab-num ).
ENDLOOP.
mn = sm / cnt.
dev = ( sm2 - ( ( ( sm * sm ) / cnt ) ) ) / ( cnt - 1 ) .
dev = SQRT( dev ).
std = dev.
ENDFORM. "stdev
Edited by: ricx .s on May 2, 2009 1:50 PM
Edited by: ricx .s on May 2, 2009 1:51 PM

Standard deviation in graph (bar chart)

Dear Community,
I am looking for a solution for my measurement analysis software, programmed in LabVIEW 8.5:
I have an array (1D, double) with some data. This data is shown in an graph as a bar chart (attachment 1 & 2).
Aditionally, there is an other array (also 1D, double) with the standard deviation of my data in the upper array (both calculated via standard deviation and variance VI)
How can I integrate this standard deviation in my graph to be shown as (colored) error bars (attachment 3)
Thanks for your help!
Best regards,
Iwo
Attachments:
Graph_in_vi.jpg ‏38 KB
Bar_chart_without_std_dev.jpg ‏853 KB
Bar_chart_std_dev.jpg ‏54 KB

Dear lwo,
You can add two more channels.
One with mittelwert+standardabweichung/2
and one with mittelwert-standardabweichung/2 .
Then configure them to show only symbols and no line.
Color them red and choose a cross as symbol.
Be sure, the mittelwert channel is the first one in the array,
or the bars will hide the crosses.
Best regards,
Stefan Heinzl
Message Edited by Stefan Heinzl on 03-09-2009 09:56 AM
Attachments:
Block Diagram.jpg ‏17 KB
Front Panel.jpg ‏40 KB

Standard Deviation

I was wondering how you get the standard deviation to show up on the graph. I know where the button is to activate the standard deviation for a simple bar chart, however it doesn't show the actual deviation, it gave me uniform for each bar in the chart. How can I fix this? Also I know that the standard deviation isn't the same because I have seen what the chart I am making is supposed to look like.

cgord wrote:
... I know that the standard deviation isn't the same because I have seen what the chart I am making is supposed to look like.
cgord,
The problem is that Numbers doesn't know what your chart is supposed to look like. It's doing the best it can. There is no such thing as a standard deviation for a single point. Numbers considers that your series is a data set and calculates a mean and standard deviation for the set. It then applies this mean and deviation to the error bars, in a proper way, the same for each member of the set.
If your data set is actually a collection of dataset averages, each with a standard deviation of its own, then it might be appropriate to show each bar with it's own custom error bar, calculated elsewhere.
To make this work, you would display each bar's corresponding StdDev in the same row as the mean you are charting and then you would indicate to Numbers which column this custom error bar data is located.
Hope this helps.
Jerry

Standard Deviation in Graph

Does anyone know how insert standard deviation into a bar graph??
Thanks.

Ah. The key point that I was missing was that this works (for points or bars) only when the series is selected in the graph. Otherwise the boxes are not enabled.
See also http://discussions.apple.com/thread.jspa?messageID=9256703 for related info.

Adding standard deviation bars to graphs

I have composed a bar graph on numbers, and have already calculated the standard deviation of my data. How do I add the standard deviation lines to each bar on my graph? Thank you.

Details available in *_Numbers User Guide_*, page #148 in the English version.
Yvan KOENIG (VALLAURIS, France) lundi 6 décembre 2010 16:44:20

Display of standard deviation in graphs

Hello,
I am trying desperately to find out how to present standard deviation within adobe illustrator generated graphs. Can anyone please help me with this problem?
p.s
I am using adobe-illustrator CS2 and winXP
tnx

Dear lwo,
You can add two more channels.
One with mittelwert+standardabweichung/2
and one with mittelwert-standardabweichung/2 .
Then configure them to show only symbols and no line.
Color them red and choose a cross as symbol.
Be sure, the mittelwert channel is the first one in the array,
or the bars will hide the crosses.
Best regards,
Stefan Heinzl
Message Edited by Stefan Heinzl on 03-09-2009 09:56 AM
Attachments:
Block Diagram.jpg ‏17 KB
Front Panel.jpg ‏40 KB

Making a Bell Curve in Numbers or MS Office for MAC: I already have mean and standard deviation

I hope my question is a simple one with a simple answer: I have the results of a mid-term and the professor gave us the mean and standard deviation of the results of the exam from which he based our grades. I am a visual person and (to be honest) without having to put forth a lot of effort, I would like to see visually where I fall on this, admittedly, artificial curve. I have both Numbers and MS Office on my MacBook Pro. Is there an easy way to create a bell curve using these numbers? It seems like there should be since those are usually the only numbers needed. I just, honestly, don't want to do the tedious work myself.

Statistical functions including several which deal with normal distribution, are discussed in Chapter 10, Statistical Functions, of the iWork Formulas and Functions User Guide. This useful guide may be downloaded via the Help menu in Numbers '09. Go to chapter 10, or for a direct route, search 'normal distribution'
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Regards,
Barry

Standard Deviation In Oracle

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