-- Forwarded message -
From: javad bayat
Date: Fri, Apr 16, 2021 at 9:00 AM
Subject: Create new polygon from a polygon
To:
Dear all;
I have a polygon and I want to divide it into 2 new polygons. The first one
must be 54 percent of the initial polygon area and the remaining area
Simpler, and no loops needed per column:
## this makes the idea clear
> x <- 1:12
> (x %% 12) %/% 3 ## first modulo, then integer divide
[1] 0 0 1 1 1 2 2 2 3 3 3 0
## add 1 if you prefer 1 to 4. Better yet, probably, is to turn it into a
factor:
> f <- factor(c("win","spr","sum","fal")[x+1])
> f
Does this happen when you start R with the --vanilla flag? When you remove
or rename ./.RData?
-Bill
On Tue, Apr 20, 2021 at 8:37 PM N. Jordan Jameson
wrote:
> I have a 64-bit Windows machine and I've installed R versions 4.0.0 through
> 4.0.5 and only versions 4.0.2 and below will successfull
Hi Ani,
Before the for loops add the following line
when[,-1] <- when[,-1]%%12 + 1
This changes the month numbering so that Dec becomes 1, Jan becomes 2, etc
Then your for loop does what you want.
HTH,
Eric
On Wed, Apr 21, 2021 at 11:09 AM ani jaya wrote:
> Dear r community,
>
> I have a d
Dear r community,
I have a data frame that shows the month of occurrence of the maximum
value on let say 10 stations in 30 years. I want to make percentages
based on seasons (DJF, MAM, JJA, and SON). I can do that by the code
below but only when we put season by JFM, AMJ, ...(or 123; 456;
789;..)
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