Sum expression in report Buildr - visual-studio

I got this expression
=iIF(Isnothing(Fields!Saldo_contable.Value) or (Fields!Saldo_contable.Value)<0,0,Fields!Saldo_contable.Value)
That works fine, I need to sum the result of the whole expression
=sum(iif(Isnothing(Fields!Saldo_contable.Value) or (Fields!Saldo_contable.Value)<0,0,Fields!Saldo_contable.Value)),
i dont get an actual error but the field just show the result: #Error,
What im doing wrong?

If Saldo_contable is not an integer, you need to use CDEC(0) for the zero value (2nd argument) of the IIF.
=SUM(IIF(Isnothing(Fields!Saldo_contable.Value) or (Fields!Saldo_contable.Value) < 0, CDEC(0), Fields!Saldo_contable.Value))
SUMming values like 0 and 2.25 results in a Can't sum different data type error.
Your detail line works because it isn't using SUM - just displaying the values.

Related

np.where() with np.linspace()

I am trying to find index of an element in x_norm array with np.where() but it doesn' t work well.
Is there a way to find index of element?
x_norm = np.linspace(-10,10,1000)
np.where(x_norm == -0.19019019)
Np.where works with np.arange() and can find the index either first or last element of array creating by linspace.
The numbers generated by np.linspace contains more decimal places than the one you are pasting to np.where (-0.19019019019019012).
So it might be better to use np.argmin to find the nearest value and avoid rounding errors:
x_norm = np.linspace(-10,10,1000)
yournumber=-0.19019019
idx=np.argmin(np.abs(x_norm-yournumber))
You can then go further and add np.where(x_norm==x_norm[idx]) to your code in case if you'll have array with duplicates.
Set the level of precision to 8 using np.round then use np.where to filter data as a mask then apply the mask to the array.
x_norm = np.round(np.asarray(np.linspace(-10,10,1000)),8)
results=x_norm[np.where(x_norm==-9.91991992)]
print(results)

SQL Server Reporting: How calculate value based on the previous calculated value int the same column?

I'm trying to calculate a row value based on the previous row value in the same column within a report expression. I can't precalculate this from database since starting point of calculation is dependent from input parameters and values in a table should be recalculated dynamically within report itself.
In Excel analogical data and formula look like as it is shown below (starting point is always 100):
B C D E
Price PreviousPrice CalcValue Formula
1 NULL NULL 100
2 2.6 2.5 104 B2/C2*D1
3 2.55 2.6 102 B3/C3*D2
4 2.6 2.55 104 B4/C4*D3
5 2.625 2.6 105 B5/C5*D4
6 2.65 2.625 106 B6/C6*D5
7 2.675 2.65 107 B7/C7*D6
I tried to calculate expected values ("CalcValue" is the name of column where expression is set) like this:
=Fields!Price.Value/ PreviousPrice.Value * Previous(reportitems("CalcValue").Value))
but got an error "Aggregate functions can be used only on report items contained in page headers and footers"
Can you please advice whether expected result is achievable in my case and suggest a solution?
Thank you in advance!
Sadly I'm still facing with issue: calculated column does not consider previous calculated value. E.g., I added CalcVal field with 100 as default and tried to calculate using above approach, like: =previous(runningValue(Fields!CalcVal.Value, sum, "DataSet1") ) * Fields!Price.Value/Fields!PreviousPrice.Value.
But in this case it always multiples Fields!Price.Value/Fields!PreviousPrice.Value by 100..
For example CalcVal on Fly always show 200
=previous(runningValue(Fields!CalcVal.Value, sum, "DataSet1")) * 2
https://imgur.com/Wtg3Wsg
I tried with your sample data, here is how I achieved the results
Formula to use, You might have to take care of null values
=Fields!Price.Value/(Fields!PreviousPrice.Value*Previous(Fields!CalcValue.Value))
Edit: Update to answer after Op's comment
CalcValue is caluated with below formula i.e on the fly
=RunningValue(CountDistinct("Tablix6"),Count,"Tablix6"*100
and then Final value as below
=Fields!Price.Value/(Fields!PreviousPrice.Value*
Previous(RunningValue(CountDistinct("Tablix6"),Count,"Tablix6"))*100)

Matlab subscript error

I am writing a simple code in matlab which has the purpose of creating the histogram of a grayscale image without using the function hist. I am stuck at the point in which mathlab displays the error "Subscript indices must either be real positive integers or logicals." Can you help me finding where is the wrong indices?
indirizzo='file.jpg';
immagine=imread(indirizzo);
immaginebn=rgb2gray(immagine);
n=zerps(0,255);
for x=0:255;
numeroennesimo=sum(sum(immaginebn==x));
n(x)=numeroennesimo;
end
plot(x,n)
you cant use 0 as index. Either make n(x+1) or for x = 1:256 and substract the 1 in your comparison. And there is a typo, I guess it means zeros instead of zerps, which also doesnt work with a 0. And one more, your plot will also not work as the x has only a size of 1 while n is an array of 266 and for a histogram I would use a barplot instead.
indirizzo='file.jpg';
immagine=imread(indirizzo);
immaginebn=rgb2gray(immagine);
n=zeros(1,256);
for x=0:255;
numeroennesimo=sum(sum(immaginebn==x-1));
n(x+1)=numeroennesimo;
end
bar(0:255,n)
or
indirizzo='file.jpg';
immagine=imread(indirizzo);
immaginebn=rgb2gray(immagine);
n=zeros(1,256);
xplot=zeros(1,256);
for x=1:256;
numeroennesimo=sum(sum(immaginebn==x-1));
n(x)=numeroennesimo;
xplot(x) = x-1;
end
plot(xplot,n)

Subtracting Expressions (Report Builder 3.0)

I have 2 expressions to fill in the column for the current amount and prior amount:
Current Amount: =IIf(Fields!ACCOUNTING_PERIOD.Value = Parameters!AP.Value, Fields!DEPR.Value, "")
Prior Amount: =IIf(Fields!ACCOUNTING_PERIOD.Value = Parameters!PRAP.Value, Fields!DEPR.Value, "")
What I need to is complete a 3rd column (called "Diff) by subtracting the value in the prior amount field from the value in the current amount field.
I tried to use the following expression that subtracts 1 from the other to get the difference:
=(=IIf(Fields!ACCOUNTING_PERIOD.Value = Parameters!AP.Value, Fields!DEPR.Value, 0)) – (=IIf(Fields!ACCOUNTING_PERIOD.Value = Parameters!PRAP.Value, Fields!DEPR.Value, 0))
However, I get the following errorm message:
The Value expression for the textrun ‘Textbox6.Paragraphs[0].TextRuns[0]’ contains an error: [BC30037] Character is not valid.
FYI, Textbox6 is the cells where this expression resides. Any help in correcting this expression would be greatly appreciated. Thanks for your help.
I think there are two Problems with your diff expression.
First i would take away some equal signs:
=IIf(Fields!ACCOUNTING_PERIOD.Value = Parameters!AP.Value, Fields!DEPR.Value, 0) – IIf(Fields!ACCOUNTING_PERIOD.Value = Parameters!PRAP.Value, Fields!DEPR.Value, 0)
The second thing is, that according to the error message your Fields seem to formatted as characters not doubles. So you will need to convert them before substracting them. You should already do this in your sql-code with:
CONVERT(Fields!DEPR.Value AS numeric)
Hope this helps

What makes Crystal ignore record selection formula?

Crystal 2008. Have record selection formula ending with
and
( ( "Zero" in {?Credit_Debit} and {V_ARHB_BKT_AGING_DETAIL.AMOUNT} = 0)
or ( "Credit" in {?Credit_Debit} and {V_ARHB_BKT_AGING_DETAIL.AMOUNT} < 0)
or ( "Debit" in {?Credit_Debit} and {V_ARHB_BKT_AGING_DETAIL.AMOUNT} > 0) )
but no matter what combination of values is selected for Credit_Debit the result set is the same.
Also without success, I tried joining the parameter array into a single string and using lines like
or ( {#Cred_Deb_Choices} like "*Credit*" and {V_ARHB_BKT_AGING_DETAIL.AMOUNT} < 0)
Using the first method works in the same formula when the parameter values are integers, as:
and ({?Location ID} = 0 or {V_ARHB_BKT_AGING_DETAIL.LOC_ID} in {?Location ID})
I examined the generated SQL, and saw that the part at the beginning that had no effect was not shown.
I changed a part that tested for a hard-coded value to instead test for a parameter value, and looked at the SQL again. No change.
When you try to create a filter that doesn't fit with the datatype of the field then that doesn't get reflected in record selection formula.
For Integer field give integers in record selection for text give text.
E.g:
ID=0 and Name='XXX' works
ID='Zero' and Name='XXX' doesn't
This should solve your issue

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