Google Spreadsheet Post #1312
Yogi Anand, D.Eng, P.E. ANAND Enterprises LLC -- Rochester Hills MI www.energyefficientbuild.com. Jul 30, 2013
user theillway (http://productforums.google.com/forum/?zx=gx080770b9kk#!mydiscussions/docs/dpamcy2XFwU)
Finding the current trend in a sheet
I keep a spreadsheet of how much I have charged a client, and how much time I spent on work for that client. I use this information to get the average of how much per hour I am charging. I then use the trend function to figure out whether I'm improving or holding steady. The problem is, everytime I enter in new information, I have to manually update which cells the trend should apply to (if I simply have the trend for the whole column, the formula breaks). I want to be able to lock the sheet so that I can have other (less tech savvy) staff use the spreadsheet without fear.
Yogi Anand, D.Eng, P.E. ANAND Enterprises LLC -- Rochester Hills MI www.energyefficientbuild.com. Jul 30, 2013
user theillway (http://productforums.google.com/forum/?zx=gx080770b9kk#!mydiscussions/docs/dpamcy2XFwU)
Finding the current trend in a sheet
I keep a spreadsheet of how much I have charged a client, and how much time I spent on work for that client. I use this information to get the average of how much per hour I am charging. I then use the trend function to figure out whether I'm improving or holding steady. The problem is, everytime I enter in new information, I have to manually update which cells the trend should apply to (if I simply have the trend for the whole column, the formula breaks). I want to be able to lock the sheet so that I can have other (less tech savvy) staff use the spreadsheet without fear.
I've tried messing around with lookup functions, but I haven't had any luck. Right now, my trend formula is =TREND(G34:G57,A34:A57). I just need a way for the "57" to update to "58" if there is data in 58.
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Here is a mock-up of the sheet I'm working on:
https://docs.google.com/ spreadsheet/ccc?key= 0AqvYpCphh7l9dDI0eXlQMmdJM1V4S TV6TnV3RXBJMVE&usp=sharing
As you can see, for the last two entries, the trend column hasn't updated itself.
Otávio, I tried your formula, but it said a circular dependency was detected.
Yogi:
a) I thought it would be a simple matter to change "F34:F56" to something like "F34:(formula)".
b) I'm looking to have the trend be in column G.
c) Expected result is to have the trend automatically calculate in the same way that I have the hourly rate calculate itself. So, a new client pays us, I put in the amount and the time worked, and the spreadsheet figures out the hourly rate and the trend.
Thanks in advance for the help.
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