Average value for waveform chart

Hello everyone.
Can i make a time interval, where i can measure average value for a waveform chart ?
for example fom 0:30 to 0:45
I have uploadet my VI
Thanks in advance
Oesen
Best regards
Oesen
Solved!
Go to Solution.
Attachments:
Trykmaaling.vi ‏83 KB

Oesen,
When you are displaying data on a chart, the newest data is appears at the right of the previous data. When the chart history buffer is full (default length = 1024), adding a new point deletes the oldest point. Visually it appears that the data slides to the left as new data is added to the right end.
My question relates to how the user would "tell" the program what data to average. In the image you posted you marked a segment of the data to be averaged. Suppose the user marks point "A" as the beginning of the segment. While the user is deciding where to put mark "B" additional data is acquired and point "A" disappears because it is beyond the history length. What does the program do in such a case? A slight variation is the situation where both "A" and "B" have been marked but some of the data is deleted from the history before the averaging or other processing has begun.
Lynn

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Why would an XY graph be preferable to using a Waveform Chart where the "t0" is the time of the measurement?
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Posting an example ussually help us nail these types of issues fast.
I am therfore forced to guess.
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In the attached VI diagram the "To more specific class" gives an error messag:
LabVIEW: Type mismatch: Object cannot be type casted to the specified type.
so it can not work for my waveform chart. I think I changed some properties or some thing similar for my chart that can not work with this routine because it works for new instances of waveform charts but whatever I try to find the difference between my waveform chart and a new instance of waveform chart I don't not find any difference.
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Attachments:
VI2.JPG ‏59 KB

Try to use the "Controls[]" and the "ClassName" property instead. See attachment.
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Solved!
Go to Solution.
Attachments:
tralala2.vi ‏34 KB

I haven't the toolkit but I think you juste have to do this and put the good picture (or you juste make a pictures selector, like a table that you can find in the vision fonctions).
Attachments:
tralala2 (1).vi ‏28 KB

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Please help me in the Logic to find out Average for the below scenario:
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Customer
Period
Payment Timeliness
Cust-001
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Cust-001
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2
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3
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Cust-001
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Display the Average of all the Payment Timeliness for a particular Month as shown above.
My Code is:
*&      Form fetch_data
FORM fetch_data .
SELECT bukrs
         belnr
         gjahr
         blart
         bldat
         budat
         monat
   FROM bkpf
   INTO TABLE g_t_bkpf
   WHERE bukrs EQ '0470'
   AND   gjahr EQ p_year
   AND ( blart EQ 'EZ'
   OR    blart EQ 'DZ' )
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IF sy-subrc EQ 0.
    SELECT bukrs
           belnr
           gjahr
           augdt
           buzei
           shkzg
           kunnr
           zfbdt
           zbd1t
           zbd2t
           zbd3t
           rebzg
     FROM bseg
     INTO TABLE g_t_bseg
     FOR ALL ENTRIES IN g_t_bkpf
     WHERE bukrs EQ g_t_bkpf-bukrs
     AND   belnr EQ g_t_bkpf-belnr
     AND   gjahr EQ g_t_bkpf-gjahr
     AND   kunnr IN s_kunnr.
    IF sy-subrc EQ 0.
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ENDIF.
ENDFORM.                    " fetch_data
FORM display_paystats .
DATA: l_due_date     TYPE faedt_fpos,
        l_timeliness   TYPE p,
        l_kunnr        type kunnr,
        l_counter      type i,
        l_period       type char5,
        l_tot_timeli   type p.
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          i_zbd1t       = g_wa_bseg-zbd1t
          i_zbd2t       = g_wa_bseg-zbd2t
          i_zbd3t       = g_wa_bseg-zbd3t
          i_shkzg       = g_wa_bseg-shkzg
          i_rebzg       = g_wa_bseg-rebzg
       IMPORTING
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ENDIF.
ENDFORM.                    " display_paystats
Where should I check the condition?
I thought of assigning the Period / KUNNR in a Variable; then compare from the second record.
But then how can I skip the check for 1st time inside a Loop?
Since this is BSEG/BKPF entries; it is slow. So, please suggest some logic that doesn't affect the performance.
Is it possible to write this logic within BSEG LOOP?
Appreciate your help.
Thank you!
Thanks & Regards,
Sowmya

Found out by myself
Closing the thread.
SORT g_t_paystat BY kunnr period.
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      l_period = g_wa_paystat-period.
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      IF sy-tabix NE 1.
        READ TABLE g_t_paystat INTO g_wa_paystat1 WITH KEY kunnr = l_kunnr
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          l_tot_timeli = l_tot_timeli + 1.
        ELSE.
          g_wa_paystat-timeli = l_tot_timeli / l_counter.
          MODIFY g_t_paystat FROM g_wa_paystat TRANSPORTING timeli WHERE kunnr = l_kunnr
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            l_counter,
            l_tot_timeli.
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    DELETE ADJACENT DUPLICATES FROM g_t_paystat COMPARING kunnr period.
    LOOP AT g_t_paystat INTO g_wa_paystat.
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