Question

我想知道是否有人可以向我解释这个错误意味着什么，以及可能如何解决它。如果需要，我可以包含整个代码程序，但这里是我收到的错误消息，以及导致它的程序部分。

Meeting

这是错误

    for i =1:num_hitters
    if hitters[i,:Position] == "OF"
outfield=vcat(outfield,fill(1,1))
catchers=vcat(catchers,fill(0,1))
firstbase=vcat(firstbase,fill(0,1))
secondbase=vcat(secondbase,fill(0,1))
thirdbase=vcat(thirdbase,fill(0,1))
shortstop=vcat(shortstop,fill(0,1))
    elseif hitters[i,:Position] == "C"
        outfield=vcat(outfield,fill(0,1))
            catchers=vcat(catchers,fill(1,1))
        firstbase=vcat(firstbase,fill(0,1))
            secondbase=vcat(secondbase,fill(0,1))
            thirdbase=vcat(thirdbase,fill(0,1))
            shortstop=vcat(shortstop,fill(0,1))
    elseif hitters[i,:Position] == "1B"
        outfield=vcat(outfield,fill(0,1))
            catchers=vcat(catchers,fill(0,1))
        firstbase=vcat(firstbase,fill(1,1))
            secondbase=vcat(secondbase,fill(0,1))
            thirdbase=vcat(thirdbase,fill(0,1))
            shortstop=vcat(shortstop,fill(0,1))
elseif hitters[i,:Position] == "2B"
        outfield=vcat(outfield,fill(0,1))
            catchers=vcat(catchers,fill(0,1))
        firstbase=vcat(firstbase,fill(0,1))
            secondbase=vcat(secondbase,fill(1,1))
            thirdbase=vcat(thirdbase,fill(0,1))
            shortstop=vcat(shortstop,fill(0,1))
elseif hitters[i,:Position] == "3B"
        outfield=vcat(outfield,fill(0,1))
            catchers=vcat(catchers,fill(0,1))
        firstbase=vcat(firstbase,fill(0,1))
            secondbase=vcat(secondbase,fill(0,1))
            thirdbase=vcat(thirdbase,fill(1,1))
            shortstop=vcat(shortstop,fill(0,1))
elseif hitters[i,:Position] == "SS"
        outfield=vcat(outfield,fill(0,1))
            catchers=vcat(catchers,fill(0,1))
        firstbase=vcat(firstbase,fill(0,1))
            secondbase=vcat(secondbase,fill(0,1))
            thirdbase=vcat(thirdbase,fill(0,1))
        firstbase=vcat(firstbase,fill(0,1))
            shortstop=vcat(shortstop,fill(1,1))
    else
        outfield=vcat(outfield,fill(0,1))
            catchers=vcat(catchers,fill(0,1))
        firstbase=vcat(firstbase,fill(0,1))
        secondbase=vcat(secondbase,fill(0,1))
            thirdbase=vcat(thirdbase,fill(0,1))
            shortstop=vcat(shortstop,fill(1,1))
      end
    end

如果有人能够解释为什么会发生这种情况，或者指出我的一个愚蠢的错误，我会非常感激。

Answer 1

这意味着您的DataFrame至少包含一个NA。在尝试将数据与==进行比较之前，您需要确保数据不包含缺失值或明确处理它们。

为什么我收到＆＃34; TypeError：在布尔上下文中使用的非布尔值（DataArrays.NAtype）＆＃34;？

1 个答案: