I am new to spatial statistics. I am working on a project analyzing the spatio-temporal neonatal mortality. I have data for six year from 2012 to 2017 specified at district level per month.
How can I compare the spatial variation of neonatal mortality rate across the 6 years. I would want to be able to explain statistically the changes of the neonatal mortality rate either for each district or the country as a whole for the 6 year period.
Any assistance would be greatly appreciated. Thanks!
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First of all I'd like to make it clear, that I'm a total newbie to MDX and only grasp the absolute basics. I'll do my very best to try and describe my issue, and hope that some of you guys have time to help me. If it's to much to ask for, I totally understand, but not putting my question out there wouldn't get me anywhere either way, right.
I'm working with and Excel Olap Pivot table, and I'm looking to create a new MDX measure that multiplies the sum of expenditure in each of the last five years by a factor, like in the example below:
Year
Expediture
Factor
2018
100.000
1.05
2019
100.000
1.04
2019
100.000
1.03
2020
100.000
1.02
2021
100.000
1.01
I have an Excel Olap Pivot table with the measure [Measures].[Expected Expenditure] and the dimension [Date].[Year].[Year]). The dimension "[Date].[Year].[Year])" also holds data for other years than the five years I need to weight the expenditure in. The Factor is a set number and I'm looking to hard-code that into the calculation.
How do I go about creating a new MDX measure that weights the expenditure in each of the five years, but doesn't add a weight to the expenditure in the years outside the scope?
Please let me know if the above description is deficient or if there's anything I need to clarify further. English is not my native tongue and I apologize for anything incoherent writing.
Best regards,
Magnus
I'm putting together a monthly pro forma in Excel for a multifamily property where 10 units will be renovated and each unit renovation takes 45 days. After the unit is renovated, the unit will bring in an additional $100/mo. I managed to calculate the unit-months of vacancy per month via multiple rows of IFS statements and using the actual number of days for each renovation (I used 45 days in the calculation instead of having to roundup to 2 months).
I'm trying to come up with an algorithm to calculate the cumulative rent premium for renovated units in each month using 45 days of unit down time rather than rounding the down time to 2 months.
The solution is easy if I round the downtime to 2 months: The beginning of the row is summed until 2 cells before the current month and we simply multiply by the premium of $100. But I cannot come up with a solution that uses the actual days (45) as I did for unit-months of vacancy.
I'm not even sure if this can be done unless the pro forma is done daily. Is this correct or is there an algorithm to calculate this on a monthly basis as its laid out?
I'd appreciate any help. Thank you for your consideration.
I am currently trying to create an retirement withdrawal calculator in Microsoft Excel. Does anyone know a general formula that I can use to calculate my monthly withdrawal?
The following variables are given:
Amount saved at the beginning of retirement: y
Years of withdrawal: d
Rate of return: i
Frequency of withdrawals: monthly
After x years the initial amount should be used up.
For example:
Amount saved at the beginning of retirement: 100,000$
Years of withdrawal: 20 years
Rate of return: 5% per year
Frequency of withdrawals: monthly
After 20 years the initial amount should be used up.
I would like to calculate how much money I can withdraw per month. Does anyone know a formula behind the common calculators found on the Internet?
Thanks in advance.
I am able to use the PMT function in Excel for periods of 12, 24 and 36 months. But I am falling short of understanding how to use the function for 6 months periods.
Let's suppose I have a debt of 10 000$ and the annual interest from the bank is 10%.
If I pay monthly and I want to pay within the first year, I will do the following formula :
=PMT(10%/12;12;10000)
But what if I need to pay in 6 months?
At first I thought of doing
=PMT(10%/6;6;10000)
But this gives me more interest than paying over a year!
I searched various websites without luck.
My last resort was the official Excel website : they actually have an example of a payment over 10 months. Following their code, I would write :
=NPM(10%/12;6;10000)
The result is smaller than 12 months' interest (yay!), but why!?
Why do we calculate the interest over 12 months, and not 6? I can't seem to understand that part.
The issue is that you're adjusting an interest rate which is independent of the time you pay it off in. Technically PMT takes an interest rate equal to the period of time you are considering.
So if you're talking about paying over 6 months with an annual interest rate the correct formula is:
=PMT(10%/12;6;10000)
10%/12 is the 10% annual interest converted to a monthly period. 6 is the number of months, and 10000 is the value of the loan. 10%/6 is actually a bi-monthly interest rate.
Technically if you're compounding annually and pay off $10,000 in 5 years, at 10% p.a. the formula would be:
=PMT(10%;5;10000)
I'm currently looking at daily sales data of a specific brand over the course of the past year. My objective is to create a formula to roughly estimate the sales growth for future months.
My project isn't going very well, as the brand is very volatile in monthly sales, making it impossible to predict with a basic linear formula. I'm arriving at the conclusion that a single year's worth of sales isn't enough data, and I may have to result to provide a specific formula depending on the month. Is there anything I haven't thought of?
Note: Recording of sales start on the 15th of every month
Your sales are showing seasonality. Consider using sasonal ARIMA models.