Counting number of days for each season

[Miss A!]

I am complete Filemaker beginner (self practice), i am working on something that i am struggling with big time

 

I need to sort two seasons(High and Low) number of days depending on a given duration between two dates(start & end date). Each season has the following months, Low Season(Dec, Jan, Feb, Mar, May, June, July) the other months are for High Season.

 

I want the following order such that if i enter a start date of 27/07/2015 and End date of 08/08/2015, i must be able to get for Low season 5 days and for High Season 8 days.

 

Do you have any idea, sample script steps, calculation anything to go about on this problem, please help, i am a complete struggle, i can not even start ((( immensely will appreciate your attention.

Edited September 24, 2014 by Lee Smith
Font color and style

[comment]

Assuming a duration will never span more than two seasons, try:

 

HighSeasonDays (result is Number)  =

Let ( [
highSeasonStart = Date ( 8 ; 1 ; Year ( StartDate ) + ( Month ( StartDate ) = 12 ) ) ;
highSeasonEnd = Date ( 11 ; 30 ; Year ( highSeasonStart ) )
] ;
Max ( Min ( EndDate ; highSeasonEnd ) - Max ( StartDate ; highSeasonStart ) + 1 ; 0 )
)

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P.S. Please don't make your posts "pretty". The default font is already difficult enough to read, thank you.

[Miss A!]

Oh Ohh pardon my font - thank you for your response.......

actually the case of the matter is that, the solution should satisfy possibility that duration may span two seasons, so as i have described in the second last paragraph - Also for each season, already the specific months are there, e.g High Season(April, August, September, October & November) and Low Season(December, January, February, March, May, June & July)..........Really feel like i am on wrong career platform and filemaker is abusing me please help!!!

[comment]

the solution should satisfy possibility that duration may span two seasons

 

I said "more than two seasons".

 

 

Also for each season, already the specific months are there, e.g High Season(April, August, September, October & November) and Low Season(December, January, February, March, May, June & July)..........

 

Have you tried the calculation I posted?

[Lee Smith]

Hi Smalapi, and welcome to the FM Forums.

 

I changed the Font in your post for you.

[Miss A!]

Hi Smalapi, and welcome to the FM Forums.

 

I changed the Font in your post for you.

Thank you Lee - Do you think a possible solution exist for my problem? Help.....

 

I said "more than two seasons".

 

 

 

Have you tried the calculation I posted?

i tried without luck - I can not get around the code, at the moment i only have this fields: StartDate, EndDate, HighSeasonDays, LowSeasonDays....i do not know if i have to define extra 4 fields (HighSeasonStart&HighSeasonEnd and same 2 fields for low season) and the reason behind this fields - sorry i am a terrible learner especially with programming........I try!!!

[comment]

i tried without luck

 

Luck has nothing to do with this. Define the HighSeasonDays field as a calculation field and paste the formula given above into the Specify Calculation window.

[Miss A!]

ohhhh'k, i seem to be getting something for it, but you see the April month belongs to high season but it lies between low season months, so when a duration is spanning March and April for example, all this days are being calculated for Low Season.......

[comment]

you see the April month belongs to high season

 

Ah. Sorry, I didn't see that. Try this, then:

Let ( [
y = Year ( StartDate ) + ( Month ( StartDate ) = 12 ) ;
aprilStart = Date ( 4 ; 1 ; y ) ;
aprilEnd = Date ( 4 ; 30 ; y ) ;fallStart = Date ( 8 ; 1 ; y ) ;
fallEnd = Date ( 11 ; 30 ; y ) ;daysInApril = Max ( Min ( EndDate ; aprilEnd ) - Max ( StartDate ; aprilStart ) + 1 ; 0 ) ;
daysInFall = Max ( Min ( EndDate ; fallEnd ) - Max ( StartDate ; fallStart ) + 1 ; 0 )
] ;
daysInApril + daysInFall
)

This will work fine for a duration that begins in say December and lasts until the following December (counting both high season periods), but not for a duration that begins in November (or earlier) and lasts until the following April.

[Miss A!]

Ah. Sorry, I didn't see that. Try this, then:

Let ( [
y = Year ( StartDate ) + ( Month ( StartDate ) = 12 ) ;
aprilStart = Date ( 4 ; 1 ; y ) ;
aprilEnd = Date ( 4 ; 30 ; y ) ;fallStart = Date ( 8 ; 1 ; y ) ;
fallEnd = Date ( 11 ; 30 ; y ) ;daysInApril = Max ( Min ( EndDate ; aprilEnd ) - Max ( StartDate ; aprilStart ) + 1 ; 0 ) ;
daysInFall = Max ( Min ( EndDate ; fallEnd ) - Max ( StartDate ; fallStart ) + 1 ; 0 )
] ;
daysInApril + daysInFall
)

This will work fine for a duration that begins in say December and lasts until the following December (counting both high season periods), but not for a duration that begins in November (or earlier) and lasts until the following April.

Yeeaah, i sure did - thank you so much.

[Miss A!]

Hi Comment, this me again

 

Thank you for your solution, i took time to define all the variables in the table and after doing some reading on the LET() function i realised i needed to clean up that mess, so now.......please i need help to decipher some part of that solution, i do not understand what the value of y is going to be for this variable declared as:

 

 

y=Year(StartDate) + (Month(StartDate) = 12);

 

Could you please break it down a little in explaining what is going on here, i tried i could not get it........

[comment]

y = Year ( StartDate ) + ( Month ( StartDate ) = 12 ) ;

 is a short way to write:

y = Year ( StartDate ) + If ( Month ( StartDate ) = 12 ; 1 ) ;

By default, the formula calculates the dates of the two high-season periods in the year of StartDate. However, when StartDate is in December, both high-season periods have already elapsed, so the calculation moves to the following year.

[Miss A!]

Sorry am so lost - can we use an example two dates, start: 28/11/2014 End: 15/01/2015, in this case what is the year or value for the variable y = ?

[bruceR]

What is the numerical value of month 11? Is 11 = 12 or not?

[comment]

Sorry am so lost - can we use an example two dates, start: 28/11/2014 End: 15/01/2015, in this case what is the year or value for the variable y = ?

 

You should be able to find this out for yourself - for example, by using the Data Viewer.

[Miss A!]

Given the start date 28/11/2014, the numerical value of month is 11 and my confusion does not clear here, assigning 11 a value of 12 then adding that to 2014 or what is going on really............feeling dumb big time!

[comment]

assigning 11 a value of 12

 

In Filemaker, = does not assign a value*; it compares and returns a True or False (1 or 0) result.

 

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(*) except within the Let() function, when used in the appropriate place.

[LaRetta]

Put this portion of Comment's calc in your data viewer: 

 If ( Month ( StartDate ) = 12 ; 1 )

You will get a 1 or empty.  This means that "if the month of the start date equals 12 (is December) then return '1' ... which adds a 1 to the year of the start date if the month is 12.  

 

And don't feel bad about your confusion, Miss A ... you are willing to ask the questions so you understand instead of using a calculation which makes no sense and then just moving on.  :-)

[Miss A!]

Thank you LaRetta for coming through to me - i seem to be getting somewhere slowly but surely, with a bit more practice.........thanx