IsNan() function

Hi All,
I would like to ask regarding the IsNan() function. How is it used and what is its output?
I am using it in an if statement and cant seem to get a result. It only outputs #error in my report.
I am using it in a matrix report which displays the percentage(%) calculation for project hours of a department.
There might be where a department has no project hours clocked and I would like to output 0%
Can anyone help?
Thanks & Regards,
Fadzli

Hi Fadzli,
The Double.ISNaN(Expression) method returns boolean value, which is True or False. True if the Expression evaluates to not a number; otherwise, false. For example, one expression of report definition language like this: =Double.IsNaN(12.03) , which returns false.
we often use the IsNumeric() function to evaluate an expression as a number. This function also returns a Boolean value indicating whether an expression can be evaluated as a number. For example, the expression: =IsNumeric(12.03) , which returns true.
If the above information still can’t help you, please POST what you want to do with the IsNan() in your report project and better with sample data.
Regards,
Jerry

Similar Messages

Using isnan

I want to use isnan() function in a fortran code which I am compiling with mpif77/mpif90 or mpf95. I am getting error message
mpf95 -c main.F -xO3 -Bstatic -e -Iinclude -I/opt/SUNWhpc/HPC7.1/include -I/home/hpc2073/SPfft/SPfft_32/include
if (isnan(utau).or.isnan(ubulk)) then
^
"main.F", Line = 190, Column = 14: ERROR: IMPLICIT NONE is specified in the local scope, therefore an explicit type must be specified for function "ISNAN".
if (isnan(resid)) then
^
"main.F", Line = 2063, Column = 11: ERROR: IMPLICIT NONE is specified in the local scope, therefore an explicit type must be specified for function "ISNAN".
f90comp: 3810 SOURCE LINES
f90comp: 2 ERRORS, 0 WARNINGS, 0 OTHER MESSAGES, 0 ANSI
gmake: *** [main.o] Error 1
why is it not recognizing isnan() as intrinsic function.

I am having the same problem. I am using ISNAN() on the pc. When I ported my code to the Sun Solaris Fortran I wrote a little function:
FUNCTION HEC_ISNAN (X)
LOGICAL HEC_ISNAN
REAL X
INTEGER isn
isn = 0
isn = IR_ISNAN(X)
HEC_ISNAN = .FALSE.
IF (isn /= 0) HEC_ISNAN = .TRUE.
RETURN
That worked fine. I copied everything over to a Sun Linux Fortran and now I am getting:
hec_lib_call.o(.text+0x5b6): In function `hec_isnan_':
: undefined reference to `ir_isnan_'
make: *** [steadyx] Error 1
I tried the above suggestion about using ieee_is_nan,
FUNCTION HEC_ISNAN (X)
USE, INTRINSIC :: IEEE_ARITHMETIC, IEEE_EXCEPTIONS
~code not shown
isn = ieee_is_nan(X)
and I get the following:
USE, INTRINSIC :: IEEE_ARITHMETIC, IEEE_EXCEPTIONS
^
"hec_lib_call.f", Line = 205, Column = 58: ERROR: Unexpected syntax: "=>" was expected but found "EOS".
isn = ieee_is_nan(X)
^
"hec_lib_call.f", Line = 218, Column = 12: ERROR: Assignment of a LOGICAL expression to a INTEGER variable is not allowed.
If I take the USE... statement out, it does not find the ieee_is_nan call. Am I missing something? I'm not familiar with either the Sun or the Linux environment.
I'm using Sun Studio 12 for Linux.
Thanks for any help.

IsNaN

Hi,
I am new to Java and have no idea how to use the isNaN function to determine whether a double value is not a number?
My idea would be to use an if statement..
if (isNaN(somenumber))
do something
}Where am I going wrong?
Thanks
Message was edited by:
Jim2580

if (Double.isNaN(someDouble))because that method is defined in the Double class. If you don't prefix it with a classname (static methods) or reference (non-static), then it implies that method or member variable is defined in your current class.

Drawing API animate??

Hi guys, i have only recently started with Drawing API, and
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Sketchsta,
> Hey David, i only just saw your post after i replyed..
uum,
> could you give be the basis of how to use the
setInterval ?
The setInterval() function can be run in more than one way.
The basic
way is to provide it two parameters: a) another function to
run, and b) a
time interval at which to run this other function. That's
really all there
need be to it.
> cuz i only used it once, but i didnt know how to stop
it, it
> kept going forever, till my com was struggling.. then i
found
> clear() ... now my comp has no problem, but i still cant
> stop the line.. anyway, off the point...
That's not off the point. ;) Sounds like that's exactly what
you need
to figure out now. The clearInterval() function stops a
particular
setInterval() loop. How does it know which loop to stop? The
answer is,
you provide clearInterval() with a number. This works a bit
like those
lines at the deli section where you "take a number" and they
eventually call
it.
setInterval() provides a return value, just like many (but
not all)
functions. The getTimer() function, for example, returns a
number that
represents how many milliseconds have passed since the Flash
movie began.
The isNaN() function returns a Boolean (true or false) value
that tells
whether a given value is "not a number." Well, setInterval()
returns a
value that indicates the number of its latest usage. The
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setInterval(), it sets up a scenario whereby it repeatedly
calls the
function you pass it at the time interval you pass it. This
is the first
such scenario, and so the number it returns is 1. The next
time you use
setInterval(), it sets up a second scenario -- calling some
other function
you provide, or the same one -- and this time it returns 2.
The third time,
3, and so on.
Conveniently, you don't have to keep track of this. You can
store the
return value of setInterval() in a variable and use the
variable as a
parameter to clearInterval().
> could you give me an example of how to set it up?
var id:Number = setInterval(drawingFunctionHere, 30);
In the above line, an arbitrarily named variable id (which
will be a
number) is set to the return value of setInterval(), which in
this case
calls an arbitrarily named function, drawingFunctionHere
every 30
milliseconds. Whenever you see fit (such as when your drawing
is finished,
and only you'll know that), you can call clearInterval() and
pass in that id
variable.
clearInterval(id);
That stops the repeated call to drawingFunctionHere(). Of
course, the
first time around, you could use clearInterval(1) -- but
again, there's just
no reason to keep track of the interval numbers yourself. You
can re-use
that id variable as often as you need.
David Stiller
Adobe Community Expert
Dev blog,
http://www.quip.net/blog/
"Luck is the residue of good design."

Comparing NaN

I need to compare two big arrays of double which may contain items set to not-a-number (NaN).
When both arrays contain NaN items, the comparison should yield "equal" if all NaN elements are placed at the same index position and, of course, if all numeric items (elements that are not NaN) are equal.
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Isn't there a more elegant way in LabVIEW to obtain the same result?

> I need to compare two big arrays of double which may contain items set
> to not-a-number (NaN).
> When both arrays contain NaN items, the comparison should yield
> "equal" if all NaN elements are placed at the same index position and,
The equals node in LV act the way it does because that is the way IEEE
defines it. The string comparison is a good idea, but most of the time
is being spent converting the data into a string and possibly swapping
bytes.
Another approach, that will probably be faster is to do a simple
comparison first, but when it returns false, look at the elements that
are FALSE and see if both are NaNs. If there aren't that many NaNs, it
should go pretty quick. To get the more detailed equals data, popup on
the equals node and turn
on Compare Aggregates. This will now return an
array of Booleans instead of a single one. You can either loop through
or search for FALSE. The index returned can be used to index the input
elements and see if they are both NaN using the IsNan function.
Of course if you want to use a DLL and C code to do the comparison, that
will work too and will probably be even faster.
Greg McKaskle

Capture something like '0 '

Hello All,
I need to validate a field value if its a number or not in javascript.
I used the isNaN function & it validates correctly for inputs like *, 'a' etc..
But it doesnt work for an input like '0 '. Please note that the 0 is followed by a single space. How to validate such entries?
Regards,
Sharat

Javascript doesn't natively provide trim functionality to the String object.
To solve this, place the following code near the top of your Javascript file to add trim() functionality
String prototype.trim = function() {
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Hello and thank you in advance for your time. I am looking for a formula that will count the number of fields containing text.
Example:
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Field2 = "text"
Field2 = "text"
TotalCount = 3
Any assistance will be greatly appreciated.
Thank you again and have a great day!

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There is no non-constrictor function of "NaN()' , it is "isNaN()' or is Not A Number function.
Core Function
Evaluates an argument to determine if it is not a number.
Syntax
isNaN(testValue)
Parameters
testValue
The value you want to evaluate.
Description
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isNaN attempts to convert the passed parameter to a number. If the parameter can't be converted, it returns true; otherwise, it returns false. CAVEAT : if the parameter is null or an empty string or unicode spaces, it returns false !
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Price validation........

Hi All,
Anybody please tell me what is wrong with the folllowing code.
it is giving javascript error.
isNaN() is not working.
Well I have placed the same code in java script forum but nobody have answered.
Please reply soon.
<html>
<head>
</head>
<script language="javascript">
function validation() {
var price=document.name1.price.value;
if(price.isNaN()) {
alert("hello");
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<form name="name1" method="post" action="a1.jsp" onsubmit="return
validation()">
<input type="text" name="price">
<input type="submit" value="submit">
</form>
</html>

two second goggle for isNaN gets
The isNaN function is used to determine if the argument, testvalue, is a NaN.
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The classic example of a NaN is zero divided by zero, 0/0.
bloody amazing things is computiers

Weight calculator

I am trying to create a very simple calculator. Basically the
user places in the height, weight and length and then this will
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However, I have no idea whatsoever. I know a bit about flash
but this is a little bit advanced. Dopes anyone know any serial
numbers or templates that I could modify? The guy ho wants it has
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Any help would be really really appreciated.
Thanks
George

you can use the onChanged() method of the textfield to check
if the text property of your textfields are numbers using the
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Need to count the number of checked boxes. I'm using the script below and its not working. What I'm I doing wrong? It's driving me crazy.
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function Sum(aFieldNames) {
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if(!isNaN(this.getField(aFieldNames[i]).value) )
sum += Number(this.getField(aFieldNames[i]).value);
return sum;
} // end of Sum function
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Then why are you checking if they're a number by using the isNaN function, and then trying to add that number to the sum variable? It looks like you just copied the code from somewhere else, even though it doesn't apply to your situation.
Replace those two lines of the code with this:
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Restricted numbers

Hello,
I need to create an input text field that allowes numbers to
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if N is a number and L is a letter, both your allowed
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Urgent javascript function is not being called

I have the code as below html and jsp and i want the validation to be done before submission of the form can anybody help me how to solve.
thanks in advance.
regards,
srikanth
----(NPV.html code)----
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msg += '\Fourth\n';
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<td>
<INPUT type=SUBMIT ></TD></TR>
</TABLE>
</FORM>
</BODY>
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<%@page contentType="text/html"%>
<%@page import="java.util.*"%>
<html>
<head><title>JSP Page</title></head>
<body>
<%!int one,two,three,four,five=0 ;
double NPV=0;
ArrayList al;
boolean flag=true;
public void Calculation(ArrayList al1)
double r = .06;
double no=1;
double no1=0;
double total = 1+r;
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total =no *total;
no=1+r;
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%>
<%
al =new ArrayList();
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al.add(1,request.getParameter("second"));
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<a href= NPV.html>Click here to reenter Pl.. </A>
<%}
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ya, i got my problem solved not only by making parseDouble to parseFloat but also making the input type = button (instead of submit) and submiting the form through javascript. i don't know why it is not working when it is a submit button.
thanks..

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I am one of users of HP LaserJet Enterprise 500 Color MFP M575.
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There is no change to this problem after 6 months since the last post. Put simply, and as stated in the previous posts, there is no way to scan a document and receive the image on your PC. If you are working with graphics for any length of time or want to create an image for inclusion as an image in a document or web page using this piece of equipment will not allow you to do so.
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Hi,
Is it possible to do Logical Operations in SQL decode function
like
'>'
'<'
'>='
'<='
'<>'
not in
in
not null
is null
eg...
select col1 ,order_by,decode ( col1 , > 10 , 0 , 1)
from tab;
select col1 ,order_by,decode ( col1 , <> 10 , 0 , 1)
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Regards,
infan
Edited by: user780731 on Apr 30, 2009 12:07 AM
Edited by: user780731 on Apr 30, 2009 12:07 AM
Edited by: user780731 on Apr 30, 2009 12:08 AM
Edited by: user780731 on Apr 30, 2009 12:08 AM
Edited by: user780731 on Apr 30, 2009 12:09 AM

example:
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from tab;
select col1 ,order_by,case when col1 <> 10 then 0 else 1 end
from tab;
select col1 ,order_by,case when col1 not in (10,11,12) then 0 else 1 end
from tab;As for testing for null, decode handles that by default anyway so you can have decode or case easily..
select col1 ,order_by,decode (col1, null , 0 , 1)
from tab;
select col1 ,order_by,case when col1 is null then 0 else 1 end
from tab;

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