OpenBugs错误：预期集合运算符c错误pos 7515

Question

我正在尝试使用R2OpenBUGS库评估R中的层次模型。我已经看过类似问题的答案，但似乎没有任何效果。 如果有人可以提供帮助，我会非常高兴。

该模型如下。

model{
for (i in 1:n) {
    goals1[i] ~ dpois(lambda1[i])
    goals2[i] ~ dpois(lambda2[i])
    log(lambda1[i]) <- mu + home + a[ht[i]] + d[at[i]]
    log(lambda2[i]) <- mu + a[at[i]] + d[ht[i]]
}
for (i in 1:np) {
    pred[i, 1] ~ dpois(parh[i])
    pred[i, 2] ~ dpois(para[i])
    log(parh[i]) <- mu + home + a[pht[i]] + d[pat[i]]
    log(para[i]) <- mu + a[pat[i]] + d[pht[i]]
}
mu ~ dnorm(pmu, 0.01)
home ~ dnorm(phome, 0.01)
for (i in 2:k) {
    a[i] ~ dnorm(priora[i], 0.01)
    d[i] ~ dnorm(priord[i], 0.01)
}
mua <- -sum(a[2:k])
mud <- -sum(d[2:k])
a[1] ~ dnorm(mua, 100)
d[1] ~ dnorm(mud, 100)}

在日志中我得到：

model is syntactically correct
expected the collection operator c error pos 7515
variable n is not defined
model must have been compiled but not updated to be able to change RN generator
BugsCmds:NoCompileInits
model must be compiled before generating initial values
model must be initialized before updating
model must be initialized before monitors used
model must be initialized before monitors used
model must be initialized before monitors used
model must be initialized before monitors used
model must be initialized before monitors used
model must be initialized before monitors used
model must be initialized before DIC can be monitored
model must be initialized before updating
model must be initialized before monitors used
DIC monitor not set

当我尝试将先前平均值priora []和priord []的向量赋给a [i]和d [i]时，问题就开始了。如果我将这些方法设置为＆＃34; 0＆＃34;代码有效。