Changing Chart Data Types

Hi,
I know this is a stupid question, but I can't figure for the life of me
how to do it. I want to create a histogram, so I stick a waveform chart
onto my VI. Fine, now I found the Moving Histogram PtByPt.vi example
(ships with LabView 7). It creates a histogram and the data it sends to
it is a cluster. This is very convenient because you just wrap your XY
data up into a cluster and send it into the chart. Right now I can cut
and paste the chart from this example, but if I didn't have the example
I'd create a waveform chat, create my cluster with my xy data and pass
it in. However, LabView complains about bad data types, because the
default input data type is a 2D array of doubles. HOW DO I CHANGE THE
DATA TYPE THE CHART ACCEPTS? I've been through every menu and property
that I can think of, what's the secret? I've had this problem happen a
couple of times and usually gotten around it by right clicking my lead
and then picking to create something from a list and when it's created
it's created with the right data type. However, it doesn't have that
option in this situation. So what do I do? I've included a junk of my
code for you to see if you want.
Thanks for any help,
Chris
Attachments:
Coincidence_v1.vi ‏53 KB

You've got two different types of graphs. You have the XY graph wired to the cluster and you have a regular (not XY) graph. The regular graph does not accept the same type of input as the XY graph. It accepts a 1D x array, 2D array (multichannel) a waveform data type, an array of waveforms (multichannels), and a cluster that contists of a y array, x0, and dx (essentially a waveform data type)

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Can we change the data type of a field based on the value of the field

HI Gurus,
My Requirement is as below -- Could you please guide me
in the Printable Adobe form -- for ex - as usual for dates fields in the Object Pallette the object type is a date/time field and for quantity/currency fields corresponding fields are taken
now in case the either the date, quantity or currency is initial in place of displaying 0.00 or empty date we need to display N/A (Not Applicable)
for this I would like to change the data type of the field
to put it simply --
we need to change the data type of date field from DATE&TIME to Char type to hold N/A or Quantity field to Char field to hold N/A
how can we realize this in SAP adobe forms
Thanks in Advace
Ramchander Rao.K

Hello Ramchander,
     You cannot change the data type of the field at run time in Adobe forms because the type of field you choose at the time of design level is associated with the data type itself.
If you want to achieve your requirement, then your main idea should be to set the data type as CHARACTER itself while designing the field in the adobe form itself. CHAR field will comfortably hold the value of Calculation/amount field, Currency field, Amount, Date, Time HHMMSS, Unit Accuracy, Currency key, Floating point number, Numeric text, Client, Language and many other data types.
After designing the field as TEXT field in Adobe form you have two options.
Option 1:
Select the Date field initially as type TEXT field or CHAR field in Adobe forms.
Suppose the name of the field is TEXTFIELD1, then write the Javascript code on this field in Initialize event as below.
if ( this.rawvalue == null )
     this.rawvalue = "N/A";
If the field is not blank, then it will show the date. Else it will show "N/A".
Option 2:
Select the Date field initially as type TEXT field or CHAR field in Adobe forms. Do the formatting part in ABAP itself. It will increase the performance. Avoid Javascript as much as possible.
Suppose you have a DATE variable l_dats of type DATS. Then take another variable l_date of type CHAR. Then write the below ABAP code.
MOVE l_dats TO l_date.
IF l_date IS INITIAL.
     l_date = 'N/A'.
ENDIF.
Bind the l_date to the TEXT field in the form.
Even in this case, if the field is not blank, then it will show the date. Else it will show "N/A".
But I will suggest you to use Option 2 of keeping the AMOUNT, QUANTITY, DATE, TIME fields etc as CHAR or TEXT fields in Adobe form and do the required formatting in ABAP itself.

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I have created an infoobject with data type as NUMC, i used in DSO as a key figure and i have loaded data up to PSA.
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I have a requirement in which one of the change is to convert the data type of the field 'USERF2_NUM' in the table 'ESLL' from 'QUAN' to 'CHAR'.
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Thanks for the reply Sowmya.
I would like to know 2 things.
1. Is it ok to change the data type of the field 'USERF2_NUM ' which is in the table ESLL. from quan to char.
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Hello Experts,
Need to know if is it possible to change the data type of a standard field. The field is marked as a required field.
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Activation error while changing the data type of a field of a table

hi friends,
i am facing one problem while changing a data type of a field of a table.
i just created one table(Yqm32) .i have assigned charcter data type to one field(ztotal_count) .now i want to change this charcter data type to numeric data type.
while changing to NUMC data type activation error is comming as below.
Table is not yet classified
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Check on table YQM32 resulted in errors
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Hi Pabitra......
From the SE11 change the table as u wanted and then from menubar select
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Change Cluster Data Type

I might be asking a really silly school boy question here and to some degree I hope I am but could somebody tell me if its possible to change the data type of a cluster element? Let me explain.
Here is a screen shot of my code:
I read back my test data as an array of strings which I convert to a cluster, bundle then send off on its merry way to do other stuff, however the first element in the cluster is actually a path. As you can see I currently unbundle all elements, change the first to a path then re-bundle with the correct data types. Whilst somewhat messy, this used to be acceptable as I only had two other strings in the cluster, however due to expansion I now look at it and think that there must be an easier, more elegant way to do this if I just want to change one element.
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Solved!
Go to Solution.

I have no idea what the rest of the code looks like and how much you can change so a few options:
1. Keep them all as strings, do the path conversion when you actually need the path. I'll show you the trick I use to convert arrays to nicely labelled clusters below.
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3. Make the cluster hierarchial, separate the path and have a second cluster which is all strings.
4. If you want you can jigger the string array and use some flatten and unflatten action.
The top of the snippet is one way to jigger the string array to get a path for the first element in a flat cluster (should wire seamlessly to the rest of your code). The lower code shows how I would convert a string array to a cluster so the labels are useful, same idea works for clusters which are given useless labels such as those from Array to Cluster. (Fixed sized clusters with brown wires are easier to handle, simply Type Cast to the cluster with the same types and appropriate labels).
Judging from your original post, you know when and how to Type Def the various clusters I show.

Problem regarding change of data type x to data type c

Hi,
Is there any way to change the data type x to data type c.
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Try following this peice of code.
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Hi Balakrishana,
Try this:
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copy the data in to the new column
drop the original column
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--Kirby

The output of my mathscript node is not changing the data type ?

hi
iam attaching my .vi iam having problem that my math script function is not changing it data type in its output
iam uisng labview 2009
what reason it will be?/
thanks
Attachments:
mathfunct.zip ‏4 KB

First off, there is a dedicated mathscript forum that might be better to get your problems answered. (I see if I can have this thread moved from the LabVIEW board, else you can re-post over there.)
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LabVIEW Champion . Do more with less code and in less time .

How to change the data type of an item in administrator

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You really don't need to sum the item before hand if you are going to create a summary!

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