Relative min and max of Waveform
I am wondering if I could get some help trying to capture a waveform measurement in LabView using an analog input. I attached a picture of the waveform I'm trying to capture and the values I'm trying to read. Would this type of measurement be possible in LabView
Attachments:
Measurement.png 33 KB
What rate is the waveform oscillating? What rate do you plan to sample at?
As far as measuring those value, it is a matter of finding the right ranges to sample at. What I have done for something somewhat simlar was to make a moving RMS on the entire waveform. This should result in something like a square wave. From there, you can look for the edges. That will give you the ranges to do your amplitude calculations on the original waveform.
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Similar Messages
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hello,
i need to know the min and max for my signal but only on parts that i want to define by a trigger. The question is to know how i could(in my while loop) only analyse a aprt of my signal but not the whole one. i can't use a for loop because i need to see my signal all the time.
thanksGuillaume Trager,
For the triggering part of your application, there are several tutorials and example programs available to you at NI Developer Zone >> Development Library >> Measurement Hardware >> Analog Input/Output >> Analog Input >> Triggering.
Once you have the proper triggering program, you can use the Waveform Min Max.vi or Waveform Peak detection.vi to analyze your peak data. The Trigger and Gate Express VI may also work as a software trigger.
Good luck with your application. -
Capturing min and max of a func. generated sine wave
I need to identify (in real time) the min and max values of a continuous sine wave (whose amplitude may vary). I need to capture the value of each min and max and the time of each such occurrence.
If the sine wave is in the form of a waveform data type, then all you have to use is the Waveform Min Max function. This does all that you want including returning the time values. There's even an example under Help>Fundamentals>Waveforms>Waveform Operations.
-
Min and MAx Value in a SELECT Statement
Hi,
I have a scenario where I am Selecting the values BETWEEN MIN and MAX values:
SELECT * FROM ABC WHERE CODE BETWEEN MIN(CODE) AND MAX(CODE)
ITS GETTING Error as:ORA-00934: group function is not allowed here
Any help will be needful for me.select substr(no,1,3)||to_char(substr(no,4,1)+1) "first missing number"
from
with t as
(select 'ABC1' no from dual
union select 'ABC2' from dual
union select 'ABC3' from dual
union select 'ABC5' from dual
union select 'ABC6' from dual
union select 'ABC8' from dual
select no, lead(no,1,0) over (order by no) next_no from t
where substr(next_no,4,1) - substr(no,4,1) > 1
and rownum = 1; -
Find more than one min and max in 2D array contain 0 rows
Hi
I have a 2D array and I would like to find the max and min elements between series of 0s. As you can see in the picture If I remove all 0s from the array and use the max and min function then I will have just one min and one max but I need to find min and max after every 0 rows so you can see from the picture ( just as an example) I will have 3 min and 3 max numbers. Would you please help me with this code. Do you now any algorithm that can find min and max between 0s?
I have also attached my code to remove 0s and then search for max and min numbers but as I mentioned I need min and max for every part
Many thanks
Attachments:
2.jpg 82 KB
3.jpg 27 KBThanks altenbach
I have attached the vi to this post. I would really apperciate if you help me with this example. The min values should be 100, 1500 and 4000 and the max values should be 1200,2600,5400 so as u mentioned the output should be this 2D array
100,1200
1500,2600
4000,5400
Attachments:
new.vi 6 KB -
Difference of value of a dimension based on min and max
Database: Oracle 10g
BO-BOXIr3
Let me explain the exact problem again.
As per the below code, I have the data in this format in my table:
Code:
Date Site ID KWH
1/2/2009 00:00 IN-1 22
1/2/2009 01:00 IN-1 28
1/3/2009 03:00 IN-2 25
1/3/2009 04:00 IN-2 46
1/4/2009 00:00 IN-3 28
1/4/2009 10:00 IN-3 34
1/5/2009 08:00 IN-4 31
1/5/2009 09:00 IN-4 55
1/5/2009 11:00 IN-4 77
1/6/2009 00:00 IN-5 34
Now want to build a report with following columns:
Site Count KWH
IN-1 2 6 (ex.-28-22)
IN-2 2 21
IN-3 2 6
IN-4 3 46 (ex.-77-31)
IN-5 2 34
SITE- distinct site name.
COUNT-count is number of repetitions of site id between min and max date.
KWH -(Delta between the min and max date)
To get the above result I have created 3 report from different queries since not able to get these al in a single report viz Count, Max Value and Min value. Well I have all these 3 reports or table on a single page.
Count-this report will give the count between the dates
Max Value-this report will give me the values of kwh for max dates for each site id
Min Value-this report will give me the values of kwh for min dates for each site id
Now want to create a single report based on these 3 reports which contains the column
Site|Count|KWH
IS IT POSSIBLE?
Or
Is it possible to build such report in a single one with all the required column which I mentioned?
The variables which I created to get the max & min dates,
Mx_dt= =Max([Query 2].[Hourly]) In ([Query 2].[SITE_ID])
Mn_dt= =Min([Query 3 (12)].[Hourly]) In ([Query 3 (12)].[SITE_ID])
For filtering on report used following variables:
if_st_mn=If([mn_dt])=[Hourly] Then "ok" Else "no"
if_st_mx =If([mx_dt])=[Hourly] Then "ok" Else "no"
will filter on "ok" to get the max and min date values.
rest of the variable in the snap are not usable.Yes, you can do it in one report.
I created a sample report from efashion:
Year | Lines | Sales Revenue
2001 | Accessories | $250
2003 | Accessories | $550
2001 | City Skirts | $1050
2003 | City Skirts | $1150...........
Create 2 variables 1) Count and 2) Difference:
1) Count as formula - =Count([Lines]) In Report
2) Difference as formula - =Sum([Sales revenue]) Where (Max([Year]) In Report = [Year]) - Sum([Sales revenue]) Where (Min([Year]) In Report = [Year])
You can replace the formula with your report variables. Then just drag Site ID, Count and Difference variables to your report.
Thanks
Jai -
I shutdown Zone Alarm, and deleted the contents of the file, which contained the "exe" file, then reinstalled Firefox version 5.0. I still get the XUL Runner error message about incompatibility of Version 5.0 with min and max 5.0.1. What next?
The updater wasn't able to update all the files and some were left as older versions.<br />
You need to do a clean reinstall.
Download a fresh Firefox copy and save the file to the desktop.
* Firefox 5.0.x: http://www.mozilla.com/en-US/firefox/all.html
* Uninstall your current Firefox version.
* Do not remove personal data when you uninstall the current version.
Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.
* It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.
* http://kb.mozillazine.org/Profile_folder_-_Firefox
* http://kb.mozillazine.org/Profile_backup -
Performance Issue using min() and max() in one SQL statement
I have a simple query that selects min() and max() from one column in a table in one sql statment.
The table has about 9 Million rows and the selected column has a non unique index. The query takes 10 secs. When i select min() and max() in separate statements, each takes only 10 msecs:
This statement takes 10 secs:
select min(date_key) , max(date_key)
from CAPS_KPIC_BG_Fact_0_A
where date_key != TO_DATE(('1900-1-1' ),( 'YYYY-MM-DD'))
This statement takes 10 msecs:
select min(date_key)
from MYTABLE
where date_key != TO_DATE(('1900-1-1' ),( 'YYYY-MM-DD'))
union all
select max(date_key) from MYTABLE
Because the first statement is part of an autmatic generated SQL of an application, i can't change it and i have to optimize the data model. How can i speed up the first statement?I've ran similar query on a table that has 10 milliion rows, with an index on the date column
This is what I have found:
SQL> set timing on
1 SELECT MIN(ID_DATE) MIN_DATE, MAX(ID_DATE) MAX_DATE
2 FROM MY_DATE
3* WHERE ID_DATE != TO_DATE(('1900-1-1' ),( 'YYYY-MM-DD'))
SQL> /
MIN_DATE MAX_DATE
03-APR-76 06-JAN-02
real: 43383
SQL> SELECT MIN(ID_DATE) MIN_DATE FROM MY_DATE
2 WHERE ID_DATE != TO_DATE(('1900-1-1' ),( 'YYYY-MM-DD'))
3 UNION ALL
4 SELECT MAX(ID_DATE) MAX_DATE FROM MY_DATE
5 WHERE ID_DATE != TO_DATE(('1900-1-1' ),( 'YYYY-MM-DD'))
6 /
MIN_DATE
03-APR-76
06-JAN-02
real: 20
SQL> SELECT MIN_DATE, MAX_DATE FROM
2 (SELECT MAX(ID_DATE) MAX_DATE FROM MY_DATE
3 WHERE ID_DATE != TO_DATE(('1900-1-1' ),( 'YYYY-MM-DD')) ) A,
4 (SELECT MIN(ID_DATE) MIN_DATE FROM MY_DATE
5 WHERE ID_DATE != TO_DATE(('1900-1-1' ),( 'YYYY-MM-DD')) ) B
6 /
MIN_DATE MAX_DATE
03-APR-76 06-JAN-02
real: 10
SQL> My conculsion, there is nothing you can do to the tables that will improve that particular statement.
Why can't you modify the application? -
In my database design and implementation module I'm at the implementation stage. I've set up all of my tables with PK and FK constraints and I'm wondering if you can enforce min and max column constraints. One of the rules of my DB is for my staff table there has to be a minimum of 10 and a maximum of 50, how would I enforce this rule as a constraint on the staff table or isn't this possible?
We have only been learning database design and SQL fundamentals so I don't think I'd be allowed to use triggers or procedures.
Many thanks
Mikemharper wrote:
thanks guys these commands were accepted
alter table staff
add constraint chk_staff_max check (staff_id <= 50);
alter table staff
add constraint chk_staff_min check (staff_id >= 10);
Thing is my staff_id's are in the format 'S110001' will these constraints only check for integers 10 - 50? maybe I need to use a count function on the column or something?
thanks again for your help!
MikeCheck constraint can also be used to check a list of values.
example:
ALTER TABLE <table_name>
ADD CONSTRAINT <constraint_name>
CHECK (<column_name> LIKE <condition>);
ALTER TABLE <table_name>
ADD CONSTRAINT <constraint_name>
CHECK (<column_name> NOT LIKE <condition>);
ALTER TABLE <table_name>
ADD CONSTRAINT <constraint_name>
CHECK (<column_name>
IN (<comma delimited list of values>);
ALTER TABLE <table_name>
ADD CONSTRAINT <constraint_name>
CHECK (<column_name>
NOT IN (<comma delimited list of values>);
ALTER TABLE <table_name>
ADD CONSTRAINT <constraint_name>
CHECK (<column_name> BETWEEN <lower_value>
AND <higher_value>);
ALTER TABLE <table_name>
ADD CONSTRAINT <constraint_name>
CHECK (<column_name>
NOT BETWEEN <lower_value> AND <higher_value>);
ALTER TABLE <table_name>
ADD CONSTRAINT <constraint_name>
CHECK (<column_name>) > (<condition>); -
Formula for MIN and MAX per range required in BW
Good day
Please assist with the following? I need to create a formula (CKF) in BW Query which will give me the same result as the following formula in Excel.
What I have is one Key Figure and want to calculate a Score on that key figure.
Score =Key figure/(MAX(range of ie. column B1 to B50 which contains data for the same KF)-MIN(range of ie. column B50 which contains data for the same KF).
In excel it's easy, ie" Score =TD completed/(MAX(B28:B130)-MIN(B28:B130)
If more information is required to assist, please let me know?
Always appreciated.
CorneliusThank U so much for responding so fast.
I did the MIN and MAX formula, but it is only taking the MIN or MAX from the single cell of the applicable key figure and not from a 'range' of cells. This is a further example of what I want to do:
Cell: B1 = 10
B2 = 12
B3 = 15
B4 = 0
I want to display the MIN as '0' and the MAX as '15' and then do the calculation per row.
We are in 3.2x. I want to stay away from structures as I have not done that before.
Any other assistance will be highly appreciated.
Cornelius -
To find out the min and max memory been used by each parameter under SGA_MA
Hi,
Can any please tell me how to find out the min and max memory been used by each parameter under SGA_MAX and SGA_TARGET ? below is the db CRMS65T. If any such script is there please provide me
SQL> select name from v$database;
NAME
CRMS65T
SQL> show parameter sga
NAME TYPE VALUE
lock_sga boolean FALSE
pre_page_sga boolean FALSE
sga_max_size big integer 1000M
sga_target big integer 1000MThanks in advanceCan any please tell me how to find out the min and max memory been used by each parameter under SGA_MAX and SGA_TARGET ? below is the db CRMS65T. If any such script is there please provide meI guess your question is, each memory components of SGA? if so
SQL> select * from v$sgainfo;
NAME BYTES RES
Fixed SGA Size 2088504 No
Redo Buffers 18882560 No
Buffer Cache Size 616562688 Yes
Shared Pool Size 301989888 Yes
Large Pool Size 4194304 Yes
Java Pool Size 4194304 Yes
Streams Pool Size 0 Yes
Granule Size 4194304 No
Maximum SGA Size 947912704 No
Startup overhead in Shared Pool 125829120 No
Free SGA Memory Available 0Also check
SQL> select COMPONENT,CURRENT_SIZE,MIN_SIZE,MAX_SIZE,USER_SPECIFIED_SIZE from v$sga_dynamic_components;
shared pool 301989888 301989888 0 209715200
large pool 4194304 4194304 0 4194304
java pool 4194304 4194304 0 4194304
streams pool 0 0 0 0
DEFAULT buffer cache 616562688 616562688 0 603979776
KEEP buffer cache 0 0 0 0
RECYCLE buffer cache 0 0 0 0
DEFAULT 2K buffer cache 0 0 0 0
DEFAULT 4K buffer cache 0 0 0 0
DEFAULT 8K buffer cache 0 0 0 0
DEFAULT 16K buffer cache 0 0 0 0
DEFAULT 32K buffer cache 0 0 0 0
ASM Buffer Cache 0 0 0 603979776
13 rows selected.
SQL>Edited by: CKPT on Sep 19, 2011 8:55 AM -
Highlighting Min and Max Values on each line
Hello,
Is it possible to highlight the Min and Max values on each row of a Query. For example I have sales below by product line for the last seven quarters. The user
would like the Max value (150) for Product Line ABC Highlighted as Green and the Min value (1055) color coded as Red. Like wise for each line - DEF 200 as green and 100 as red and GHI - 400 as green and 100 as red.
FYQ Q207 Q307 Q407 Q108 Q208 Q308 Q408
ABC 1500 1200 1400 1050 1100 1100 1100
DEF 1550 1000 1560 1220 1340 1640 2000
GHI 1000 2000 3000 4000 3250 2220 3750
Is this possible using Exceptions? or may be any other means? We are on Bex 7.0
Best Regards,
SanjivHello Sanjiv,
I think it can be done by JavaScript, but needs more effort
[Use of JavaScript Functions|http://help.sap.com/saphelp_nw04/helpdata/en/d9/4a853bc623c075e10000000a114084/content.htm]
Try the exception available in the BW[BW Stylesheets|http://help.sap.com/saphelp_nw04/helpdata/en/3f/ca453afbf37b54e10000000a11402f/content.htm]
SAPBEXformats - Formatting cell (scaling factors)
SAPBEXexcGood1 - Exception with priority good 1
SAPBEXexcGood2 - Exception with priority good 2
SAPBEXexcGood3 - Exception with priority good 3
SAPBEXexcCritical4 - Exception with priority critical 4
SAPBEXexcCritical5 - Exception with priority critical 5
SAPBEXexcCritical6 - Exception with priority critical 6
SAPBEXexcBad7 - Exception with priority bad 7
SAPBEXexcBad8 - Exception with priority bad 8
SAPBEXexcBad9 - Exception with priority bad 9
See this thread,
Change the colour of a cell text depending on the value Web Reports (NW04s)
Thanks
Chandran
Edited by: Chandran Ganesan on Mar 19, 2008 4:27 PM -
Global Change or filter based on Min and Max dates
Hi Guys,
Hopefully there is a genius out there that is an expert with filters and or global changes, I am after a solution and can’t work out if it is possible to do in P6.
Based on a filter (using codes to select a group of activities) I want to write a value into two date UDF Fields can I:
Run a global change to give the earliest and latest date in the group and write the result to all tasks in the group? or
Is there a mindate maxdate option in Global change or filter? Or
If these tasks were grouped in the activity view can a global change be written to fill down the dates that the summary level is displaying, which are essentially the min and max dates of the groups.
I could do this pretty easily in excel but I have over a 100 projects and doing the import one at a time is not feasible.
I could create LOE’s but as my variables are constantly changing and due to the volume also not an option.
Summary bars are not an option eithers as I am writing the UDF’s to get all the bars I want on one line,
An option for me might be to do it using Legare but I would prefer to see if I can get it done in P6 first.
Cheers
RobYes, you can do it in one report.
I created a sample report from efashion:
Year | Lines | Sales Revenue
2001 | Accessories | $250
2003 | Accessories | $550
2001 | City Skirts | $1050
2003 | City Skirts | $1150...........
Create 2 variables 1) Count and 2) Difference:
1) Count as formula - =Count([Lines]) In Report
2) Difference as formula - =Sum([Sales revenue]) Where (Max([Year]) In Report = [Year]) - Sum([Sales revenue]) Where (Min([Year]) In Report = [Year])
You can replace the formula with your report variables. Then just drag Site ID, Count and Difference variables to your report.
Thanks
Jai -
Hi,
I need to perform a calculation:
(max(min(C,2.375),0)+max(min(Y,2.375),0))/6
if the value of c is less than 2.375 then it has to accept the value of C else 2.375.
on it i need to perform the max operation.
How can i do this?Hi,
MIN and MAX, like all the aggrgate functions, take only one argument.
Perhaps you're thinking of the row functions LEAST and GREATEST, which can take one or more arguments.
For example:
GREATEST ( LEAST ( c
, 2.375
, 0
)will return
2.375 if c is greater than 2.375,
0 if c is less than 0, or
c otherwise.
CAUTION: Unlike the aggregate functions, that ignore NULLs, GREATEST and LEAST will return NULL if any of their arguments are NULL. -
MIN and MAX datetimes ti find range
I am using Oracle 11g version
create table re(Name char(20),Datetime char(45),val1 number);
insert into re values('abc','10/29/2012 13:00','1.5')
insert into re values('abc','10/29/2012 13:05','1.5')
insert into re values('abc','10/29/2012 13:10','1.5')
insert into re values('abc','10/29/2012 13:15','1.5')
insert into re values('abc','10/29/2012 13:20','0.00')
insert into re values('abc','10/29/2012 13:25','0.00')
insert into re values('abc','10/29/2012 13:30','0.00')
insert into re values('abc','10/29/2012 13:35','0.00')
insert into re values('abc','10/29/2012 13:40','2.1')
insert into re values('abc','10/29/2012 13:45','2.3')
insert into re values('abc','10/29/2012 13:50','2.1')
insert into re values('abc','10/29/2012 13:55','2.1')
insert into re values('abc','10/29/2012 14:00','2.2')
O/P:
In this way data is stored in database.Needed output is, I want the datetime column data range with min and max values where val1>0 only.
Expected result while we consider the above data is::
Name mintime maxtime
abc 10/19/2012 13:00 10/19/2012 13:15
abc 10/29/2012 13:40 10/29/2012 14:00
For this I tried something like this,
select name, min(to_date(Datetime ,'mm/dd/yyyy hh24:mi')) start, max(to_date(Datetime ,'mm/dd/yyyy hh24:mi')) end from (
select name, Datetime ,to_date(Datetime ,'mm/dd/yyyy hh24:mi') - rank() over (partition by loc_name order by t1 asc) Val_col from re where val1 > 0
) group by lname, Val_col
but I am getting the output like this for above query.
name start end
abc 10/29/2012 13:00 10/29/2012 13:00
abc 10/29/2012 13:05 10/29/2012 13:05
so.on.
Edited by: 913672 on Apr 3, 2013 3:07 AM913672 wrote:
I am using Oracle 11g version
create table re(Name char(20),Datetime char(45),val1 number);
insert into re values('abc','10/29/2012 13:00','1.5')
insert into re values('abc','10/29/2012 13:05','1.5')
insert into re values('abc','10/29/2012 13:10','1.5')
insert into re values('abc','10/29/2012 13:15','1.5')
insert into re values('abc','10/29/2012 13:20','0.00')
insert into re values('abc','10/29/2012 13:25','0.00')
insert into re values('abc','10/29/2012 13:30','0.00')
insert into re values('abc','10/29/2012 13:35','0.00')
insert into re values('abc','10/29/2012 13:40','2.1')
insert into re values('abc','10/29/2012 13:45','2.3')
insert into re values('abc','10/29/2012 13:50','2.1')
insert into re values('abc','10/29/2012 13:55','2.1')
insert into re values('abc','10/29/2012 14:00','2.2')
O/P:
In this way data is stored in database.Needed output is, I want the datetime column data range with min and max values where val1>0 only.
Expected result while we consider the above data is::
Name mintime maxtime
abc 10/19/2012 13:00 10/19/2012 13:15
abc 10/29/2012 13:40 10/29/2012 14:00
For this I tried something like this,
select name, min(to_date(Datetime ,'mm/dd/yyyy hh24:mi')) start, max(to_date(Datetime ,'mm/dd/yyyy hh24:mi')) end from (
select name, Datetime ,to_date(Datetime ,'mm/dd/yyyy hh24:mi') - rank() over (partition by loc_name order by t1 asc) Val_col from re where val1 > 0
) group by lname, Val_col
but I am getting the output like this for above query.
name start end
abc 10/29/2012 13:00 10/29/2012 13:00
abc 10/29/2012 13:05 10/29/2012 13:05
so.on.Firstly and most importantly do NOT store dates as char columns: that's what the DATE type is for.
Secondly, i'm not sure how you get your output from the input, particularly as your SQL contains 'partition by loc_name' which
doesn't even exist in your example table.
Why has the same name got two rows with those min/max times. Are you partitioning by val1?
Maybe you are looking for
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