aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Data commit

Browse source
This commit is contained in:
Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
199093 changed files with 3378972 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

18
Task/Constrained-random-points-on-a-circle/R/constrained-random-points-on-a-circle.r Normal file
View file

@ -0,0 +1,18 @@
RMin <- 10
RMax <- 15
NPts <- 100
# instead of a for loop, we generate what should be enough points
# also take care to have enough range to avoid rounding inaccuracies
nBlock <- NPts * ((RMax/RMin) ^ 2)
nValid <- 0
while (nValid < NPts) {
X <- round(runif(nBlock, -RMax - 1, RMax + 1))
Y <- round(runif(nBlock, -RMax - 1, RMax + 1))
R <- sqrt(X^2 + Y^2)
Valid <- ( (R >= RMin) & (R <= RMax) )
nValid <- sum(Valid)
nBlock <- 2 * nBlock
}
plot(X[Valid][1:NPts],Y[Valid][1:NPts], pch=19, cex=0.25, col="blue",
xlab="x",ylab="y",main="Fuzzy circle", xlim=c(-RMax,RMax), ylim=c(-RMax,RMax) )