小编mul*_*lla的帖子

我正在尝试创建 R 标记文档以进行一些分析。

但我的代码的特定部分给了我一个错误，如下所示：

“eval(expr、envir、enclos) 中的错误：未找到对象“False”调用：... process_group.block -> call_block -> eval_lang -> eval -> eval 执行已停止”

该代码实际上独立工作，但不在标记中，我尝试在此处运行的代码位于以下行中：

suppressMessages(library(reshape2))
suppressMessages(library(ggplot2))
suppressMessages(library(gridExtra))

Customer.Code <- c("200091", "200092", "200093", "200094","200091", "200092", "200093", "200094")
variable <-c("Company.Customer.service","Company.Customer.service","Company.Customer.service","Company.Customer.service", "Competitor.Customer.service", "Competitor.Customer.service", "Competitor.Customer.service", "Competitor.Customer.service")
value <- c("5","4","5","5","3","4","4","4")

pmelt <- data.frame(Customer.Code, variable, value, stringsAsFactors=F)

pmelt$Status <- ifelse(pmelt$variable %in% c("A.E.Customer.service","A.E.Delivery","A.E.Product.Availability") , "ANE" , "Competitor")

p <- ggplot(pmelt, aes(x = variable, y=value)) + geom_boxplot(aes(colour = Status))  + geom_jitter(width = 0.2) + ggtitle("ANE Vs Competitor") + xlab("Aspects") + ylab("Ratings") + theme(axis.text.x = element_text(face="bold", …

我正在使用我自己的 BLE 设备。在听完这些设备后我想使用时ScanFilter，所以我只得到我感兴趣的设备。我现在的解决方案是在回调内部进行过滤，但如果这种过滤可以更早发生并且根据规范应该会更好成为可能。我正在尝试过滤制造商的特定数据，但无法使其正常工作。这是我的代码：

BluetoothLeScanner bleScanner = bluetoothAdapter.getBluetoothLeScanner();
ScanFilter filter = getScanFilter();
List<ScanFilter> scanFilters = new ArrayList<>();
scanFilters.add(filter);
ScanSettings scanSettings = getScanSettings();
bleScanner.startScan(scanFilters, scanSettings, scanCallback);

这是创建过滤器和设置的函数：

private ScanSetting getScanSettings(){
    ScanSettings.Builder builder = new ScanSettings.Builder();
    builder.setReportDelay(0);
    builder.setScanMode(ScanSettings.SCAN_MODE_LOW_POWER);
    return builder.build();
}

private ScanFilter getScanFilter(){
    ScanFilter.Builder builder = new ScanFilter.Builder();
    ByteBuffer manData = ByteBuffer.allocate(6); //The sensors only sends 6 bytes right now
    ByteBuffer manMask = ByteBuffer.allocate(6);
    manData.put(0, (byte)0x50);
    manData.put(1, (byte)0x41);
    manData.put(2, (byte)0x43);
    manData.put(3, (byte)0x4b);
    manData.put(4, (byte)0x45);
    manData.put(5, (byte)0x54);
    for(int i = 0; …

vbscript中以下的值是什么？

1)x=1+"1" 2)x="1"+"1" 3)x=1+"mulla" 注意:在以上三种情况中,我使用第一个变量作为字符串或整数,第二个作为字符串使用.

情况1:在操作期间作为数字和自动转换为数字

enter code here
y=inputbox("Enter a numeric value","") Rem I am using 1 as input
x=1
msgbox x+y Rem value is 2
msgbox x*y Rem value is 1

情况2:作为一个字符串,在操作期间没有转换为数字,它失败了

enter code here
y=inputbox("Enter a numeric value","") Rem I am using 1 as input
x=1
if y= x then
    msgbox "pass"
else
    msgbox "fail"
end if

情况3:在操作过程中作为字符串和显式转换为数字

enter code here
y=inputbox("Enter a numeric value","") Rem I am using 1 as input
x=1
if Cint(y) = x …