I had a look for this question before I asked, but sorry if it's a repeat.
In a spreadsheet, I want to employ a date sequence.
eg. Stock Arrives - Friday 22nd February 2013
then, on the 22nd of Feb, that date CHANGES to the next 7 days.
eg. Stock Arrives - 1st March 2013
and then repeats this indefinitely.
Is there any way to do this?
If you want to always show the next Friday you can use this formula
=TODAY()+8-WEEKDAY(TODAY()+2)
That will show Friday 15th Feb 2013 right now.....but on 15th feb it will change to showing 22nd Feb
For other days just change the +2 at the end, e.g. +3 will give you next Thursday, +4 will give you next Wednesday, +5 will give you next Tuesday etc.
This is some way you could do this though I am not sure if this is what you want.
=B1+FLOOR((TODAY()-B1)/7,1)*7
Basically, have a cell hold the start date of the stock inventory (first date in the past where you received this stock). You need to have also the number of days between restocking (here I hardcoded 7). Then you can just use the floor of the difference between today and that date divised by the restocking time. This will give you a step-function-style behaviour.
Related
I have some calculations that are strongly dependent on "this week", "next week", etc.
Let's say I have a date (Column A). I can use WEEKNUM((A1), 2) in Column B to get the week number.
In Column C, I can enter this formula to check if the event is this week or next week.
=IF(B1=WEEKNUM((TODAY()),2),"this week",IF(B1=WEEKNUM((TODAY()+7),2),"next week","way in the future"))
This all works great until I have events that cross into next year. So December 31, 2019, will be week 53 and December 31, 2020, will be week 53.
This is an issue because I need a way to account that December 31, 2020 happens later than December 31, 2019.
How do I account for change in years in this formula?
Update:
Adding YEAR as an additional condition will allow me to compare if the date HAS a different year but it still won't let me dynamically calculate, this week, next week.
In this second example, I set two dates and set my computer time as December 31 2019. The result is that instead of reporting 1/1/2020 as "next week" the formula returns "way in the future" which is incorrect.
Is there basically a way to subtract or add weeks using serial week number since epoch time?
Eh, I think I figured it out. Instead of comparing week numbers, we extract the Monday of each week and perform a similar comparison like before. Except we now have the entire date instead of just the week number.
=IF(A2-MOD(A2-2,7)=TODAY()-MOD(TODAY()-2,7),"this week",IF(A2-MOD(A2-2,7)=TODAY()-MOD(TODAY()-2,7)+7,"next week","way in the future"))
For a backtesting trading system, I need to rotation my positions every 2 weeks, BUT if the day is a Saturday or Sunday, I need to take the Friday.
Semi-Monthly updates are made twice a month; mid-month and month end.
Mid-month updates are on the 15th calendar day of each month. Should the 15th be a weekend or holiday, the update will occur on the last trading day prior to the 15th.
For example, if the 15th is a Saturday then the update will occur on the close of Friday the 14th.
I need to return a list of dates of rotation based on a start date and end date.
Let's say, I need every 15 days from January 1st 2018 to 31st December 2018, it should return only the valid dates based on the rules described above.
The formula should be for Google Sheet or Excel.
I tried the following:
It is not returning exactly what I need, since the google sheet googlefinance formula allows to use daily and weekly intervals (1 or 7). See below the googlefinance definition (https://support.google.com/docs/answer/3093281?hl=en):
"interval - [ OPTIONAL ] - The frequency of returned data; either "DAILY" or "WEEKLY".
interval can alternatively be specified as 1 or 7. Other numeric values are disallowed."
You need to be more precise in your specifications. You've provided multiple inconsistent intervals. eg: Two weeks (which would be every 14 days and will always fall on the same weekday); every 15 days (which will NOT be mid-month and EOM over most time periods); mid-month and end-of-month.
I suggest developing formulas for each of your desired intervals.
Once you have developed those relevant formulas, depending on your desired interval, to avoid a date falling on a weekend (or holiday if required for your system), you can use the WORKDAY function:
=WORKDAY(computedDate+1,-1, [holiday])
If your computedDate is on a Saturday, or Sunday; by adding 1 day and then subtracting to the previous workday, Friday will result.
If your trading interval is every Two weeks, you only need to ensure that the First date is not on a Saturday or Sunday. For other intervals, you may have to apply the formula to every computedDate.
I have the following two functions in different columns and I need to apply a function to both :
=DATE(YEAR(E5);MONTH(E5);DAY(E5))
=TRUNC([#CAT]-TIME(10;0;0))
For both of them I need to default to a Friday if the date falls over the weekend. if date date is during the week it needs to keep the weekday date.
e.g: Sunday 2018/03/11 needs to be 2018/03/09
e.g: Monday 2018/03/5 needs to stay the same 2018/03/05
I have tried using an IF statement with a Weekday (1-7) but when its false it minus a day or two from the date (So on a Thursday it goes to Tuesday)
=WORKDAY(your_formula +1;-1)
will do what you want.
If your_formula resolves to a Sat or Sun, and we add one(1) day, then subtract one (1) workday, the preceding Fri will be the result, Since either Sun or Mon minus one workday --> Friday.
To literally get what you're after, I used this formula:
=IF(WEEKDAY(A2)=1,A2-2,IF(WEEKDAY(A2)=7,A2-1,A2))
On my machine Sunday is 1, and Saturday is 7.
I'm wondering if this is possible. I am creating a spreadsheet to track project due dates. Each project must be completed by the 30th calendar day, but must be turned in on a business day.
Currently, I am just adding 30 days to the start date but this means some due dates aren't always accurate. For example, if the 30th day is Saturday, April 2nd, then the real due date would be Friday April 1st.
Is there a way to construct a conditional such that the due date equals the 30th calendar day, unless that falls on a weekend / holiday, where it then falls on the next earliest business day?
I've been struggling to figure out a way to do this.
For English settings in Excel, with a date in A1, in B1 enter:
=IF(TEXT(A1+30,"DDDD")="Sunday",A1+28,IF(TEXT(A1+30,"DDDD")="Saturday",A1+29,A1+30))
This simple-minded approach only handles Saturdays and Sundays, not arbitrary holidays.
I would prefer more elegant way like using WORKDAY.INTL
=WORKDAY.INTL(A2+31,-1,1,E2:E)
Explanation: start date + 31 days (1 day more than maximum calendar days)
then subtract 1 working day - going to last previous working day
Reason: because this formula does know when are weekends (by using variables) and also knows to skip hollydays by a custom list.
here is an example sheet you can use
Revised after comment:
Try this:
=(A4+30)+CHOOSE(WEEKDAY(A4+30),1,0,0,0,0,0,-1)
Your date, in A4, + 30 days, then add an amount of days until the next workday. If A4 + 30 is a Saturday it will subtract 1 day, a Sunday will add 1.
I'm looking for a way to specify return 2015 for a date within this week, but in Calendar Year 2014.
This current week according to the Thursday system is Week 01/2015. But the Year function will still return 2014.
Something like:
IF(AND(WEEKNUM(TODAY(),21)=52,WEEKNUM(TODAY()+7,21)<>53),YEAR(TODAY())+1,YEAR(TODAY())
but a little bit more reliable and elegant.
Anybody got something?
Happy Happy
Ben-san
The "Year" of the week is determined by the year of the Thursday of that week (assuming ISO week numbers) so you can just find the Thursday and then get the year of that date, i.e. for any date in A1
=YEAR(A1-WEEKDAY(A1,3)+3)
or, similarly, for today's date
=YEAR(TODAY()-WEEKDAY(TODAY(),3)+3)
This works for any date in any year.......and might put days in Jan in the previous year also, e.g. 3rd Jan 2016 is in the last week of 2015