Displaying Max/Min values with time for analog signals.

I am sampling analog inputs. I simply want to display the max and min values with the time they occurred. This seems simple but I am new to LabView and can't find a Vi to do this.

Here's the code. When you run the demo program, you'll see three traces: Green is the max so far, Red is the min so far, and White is the current signal value.
As the input value cycles, you'll see the two limit values track its extremes. If you have any questions about how it works, just holler.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps
Attachments:
min-max_plotter.vi ‏82 KB
min-max_tester.vi ‏37 KB

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#import <Foundation/Foundation.h>
int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSMutableArray * array = [[NSMutableArray alloc]init];
NSMutableArray * another = [[NSMutableArray alloc]init];
NSNumber * num1 = [NSNumber numberWithFloat:1.1];
NSNumber * num2 = [NSNumber numberWithFloat:1.2];
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[another addObject:num1];
[another addObject:num2];
[another addObject:num3];
[array addObject:another];
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NO at the bottom of the screen ..
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Max & min value date wise

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name     value     values_date
A     40     01/08/2010
A     10     02/08/2010
A     10     03/08/2010
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A     20     03/08/2010
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B     100     01/08/2010
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B     20     03/08/2010
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B     100     11/08/2010
B     100     12/08/2010
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insert into test values('A','40','1/8/2010');
insert into test values('A','10','2/8/2010');
insert into test values('A','10','3/8/2010');
insert into test values('A','10','4/8/2010');
insert into test values('A','20','3/8/2010');
insert into test values('A','50','2/8/2010');
insert into test values('A','50','3/8/2010');
insert into test values('A','50','4/8/2010');
insert into test values('B','100','1/8/2010');
insert into test values('B','10','2/8/2010');
insert into test values('B','20','3/8/2010');
insert into test values('B','10','1/8/2010');
insert into test values('B','100','11/8/2010');
insert into test values('B','100','12/8/2010');
insert into test values('B','100','13/08/2010');
I want OP like
name     min_value     min_value_date     max_value     max_value_date
A     10          02/08/2010     50          04/08/2010
B     10          01/08/2010     100          13/08/2010

Santosh.Minupurey wrote:
Hi.....
try dis,
SQL> SELECT A.NAME,A.VALUE,MIN(A.V_DATE),B.VALUE,MAX(B.V_DATE)FROM TEST A,TEST B WHERE
2 (A.NAME,A.VALUE) IN (SELECT NAME,MIN(VALUE) FROM TEST GROUP BY NAME) AND
3 (A.NAME,B.VALUE) IN (SELECT NAME,MAX(VALUE) FROM TEST GROUP BY NAME) GROUP BY A.NAME,A.VALUE,B.VALUE;
NAME            VALUE MIN(A.V_DATE)        VALUE MAX(B.V_DATE)
A                  10 2/8/2010                50 4/8/2010
B                  10 1/8/2010               100 13/08/2010Regards,
Santosh.MinupureyHere is another way using the FIRST and LAST functions
SQL>select name,
2 min(value) min_value,
3 min(v_date) keep (dense_rank first order by value) min_value_date,
4 max(value) max_value,
5 max(v_date) keep (dense_rank last order by value) max_value_date
6 from test
7 group by name;
N        MIN_VALUE MIN_VALUE_D        MAX_VALUE MAX_VALUE_D
A               10 02-AUG-2010               50 04-AUG-2010
B               10 01-AUG-2010              100 13-AUG-2010For more info, check http://download.oracle.com/docs/cd/B19306_01/server.102/b14223/analysis.htm#i1007059

Min Value with all column

Oracle 10g database
I have 2 rows in table
at_id
emp_id
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time_out
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00041
14/06/2013
0925
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25
00041
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1400
02
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if I write this query all row shows:-
select at_id,emp_id,at_date,min(time_in) timein,time_out,status from t
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I need
at_id
emp_id
at_date
time_in
time_out
status
00041
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You could try analytics as well:
with xx as ( select at_id,emp_id,at_date,time_in,time_out,status,
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i am created one report.
my column name is offshore & on shore i want display 3 values with % symbol, then i want show 4 th value as $ 2000,
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Try the following :
give a name to the following formula like @getvalue
Numbervar x;
if
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GridValueAt(CurrentRowIndex, GetColumnPathIndexOf("Offshore Other"), CurrentSummaryIndex) = 0 and
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x:=0
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(GridValueAt(CurrentRowIndex, GetColumnPathIndexOf("ANI"), CurrentSummaryIndex) +
GridValueAt(CurrentRowIndex, GetColumnPathIndexOf("Offshore Other"), CurrentSummaryIndex) +
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GridValueAt(CurrentRowIndex, GetColumnPathIndexOf("Employee"), CurrentSummaryIndex) +
GridValueAt(CurrentRowIndex, GetColumnPathIndexOf("Contractor"), CurrentSummaryIndex) +
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Now create a new formula and check the value of the above formula :
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"$"&{@getvalue}
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{@getvalue}&"%"
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Hi all
create table temptable(MSISDN int,topupvalue float,topupdate date)I want to fetch msisdn,max(topupvalue),topupdate,min(topupvalue),topupdate from temptable
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try this [not tested]
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But it seems not correct, why?

Hi Hu,
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Attachments:
Time delay.JPG ‏37 KB

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Also see some links below:-
http://forums.ni.com/t5/LabVIEW/Finding-the-time-delay-between-two-signals/td-p/2125100
http://forums.ni.com/t5/LabVIEW/calculating-time-delay-between-two-signals-aquired-from-DAQ/td-p/849...
Thanks as kudos only

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Displaying Max/Min values with time for analog signals.

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