Boucle while
R niveau intermédiaire
Filip Schouwenaars
DataCamp Instructor
boucle « while »
while(condition) {
expr
}
while(ctr <= 7) {
boucle « while »
while(condition) {
expr
}
while(ctr <= 7) {
print(paste("ctr is set to", ctr))
boucle « while »
while(condition) {
expr
}
while(ctr <= 7) {
print(paste("ctr is set to", ctr))
ctr <- ctr + 1
}
boucle « while »
while(condition) {
expr
}
while(ctr <= 7) {
print(paste("ctr is set to", ctr))
ctr <- ctr + 1
}
"ctr is set to 1"
boucle « while »
while(condition) {
expr
}
while(ctr <= 7) {
print(paste("ctr is set to", ctr))
ctr <- ctr + 1
}
"ctr is set to 2"
boucle « while »
while(condition) {
expr
}
while(ctr <= 7) {
print(paste("ctr is set to", ctr))
ctr <- ctr + 1
}
"ctr is set to 7"
boucle « while »
while(condition) {
expr
}
while(ctr <= 7) {
print(paste("ctr is set to", ctr))
ctr <- ctr + 1
}
- Aucun affichage
boucle « while »
ctr <- 1
while(ctr <= 7) {
print(paste("ctr is set to", ctr))
ctr <- ctr + 1
}
"ctr is set to 1"
"ctr is set to 2"
...
"ctr is set to 7"
ctr
8
boucle « while »
ctr <- 1
while(ctr <= 7) {
print(paste("ctr is set to", ctr))
ctr <- ctr + 1
}
Boucle while infinie
ctr <- 1
while(ctr <= 7) {
print(paste("ctr is set to", ctr))
}
"ctr is set to 1"
"ctr is set to 1"
"ctr is set to 1"
"ctr is set to 1"
"ctr is set to 1"
"ctr is set to 1"
"ctr is set to 1"
...
Instruction break
ctr <- 1
while(ctr <= 7) {
if(ctr %% 5 == 0) {
break
}
print(paste("ctr is set to", ctr))
ctr <- ctr + 1
}
"ctr is set to 1"
"ctr is set to 2"
"ctr is set to 3"
"ctr is set to 4"
Passons à la pratique !
R niveau intermédiaire
