我有一个包含54675行和226列的数据框。在此数据帧中，前183（new_data [，1：183]）列来自单个组，后43（new_data [，184：226]）来自另一组。运行t.test
时出现此类错误NoFailure=data[which(data$outcome==0),-1]
Failure=data[which(data$outcome==1),-1]
new_data=cbind(t(NoFailure),t(Failure))
p.vals = apply(new_data, 1, function(x) { t.test(x[1:183], x[184:226]) $p.value } )
NoFailure=data[which(data$outcome==0),-1]
Failure=data[which(data$outcome==1),-1]
new_data=cbind(t(NoFailure),t(Failure))
p.vals = apply(new_data, 1, function(x) { t.test(x[1:183], x[184:226]) $p.value } )
p.vals = apply(new_data, 1, function(x) { t.test(x[1:183], x[184:226]) $p.value } )
Error in t.test.default(x[1:183], x[184:226]) :
data are essentially constant
Called from: t.test.default(x[1:183], x[184:226])