小编Fug*_*gue的帖子

R新手问题在这里.我有一个名单dbdata.通常我会这样使用它:

myresults <- rlm(V001 ~ V002+V003, data=dbdata)

但是,我想让这些参考动态化.我需要这样的东西:

var1 <- "V001"
var2 <- "V002"
var3 <- "V003"
myresults <- rlm(var1 ~ var2+var3, data=dbdata)

我如何在上下文中引用变量rlm()？我想也许是这样的eval(),但那不起作用.

谢谢!

我的Android应用启动时会出现以下错误:

09-06 12:40:56.787 12976-13134/com.company.MyApp.debug W/chromium: [WARNING:xwalk_external_extension.cc(58)] Error loading extension '/data/app-lib/com.company.MyApp.debug-10/libavformat-55.so': couldn't get XW_Initialize function.
09-06 12:40:56.792 12976-13134/com.company.MyApp.debug W/chromium: [WARNING:xwalk_extension_server.cc(412)] Failed to initialize extension: /data/app-lib/com.company.MyApp.debug-10/libavformat-55.so
09-06 12:40:56.792 12976-13134/com.company.MyApp.debug W/chromium: [WARNING:xwalk_external_extension.cc(58)] Error loading extension '/data/app-lib/com.company.MyApp.debug-10/libxwalkdummy.so': couldn't get XW_Initialize function.
09-06 12:40:56.792 12976-13134/com.company.MyApp.debug W/chromium: [WARNING:xwalk_extension_server.cc(412)] Failed to initialize extension: /data/app-lib/com.company.MyApp.debug-10/libxwalkdummy.so
09-06 12:40:56.797 12976-13134/com.company.MyApp.debug W/chromium: [WARNING:xwalk_external_extension.cc(58)] Error loading extension '/data/app-lib/com.company.MyApp.debug-10/libswresample-0.so': couldn't get XW_Initialize function.
09-06 12:40:56.797 12976-13134/com.company.MyApp.debug W/chromium: [WARNING:xwalk_extension_server.cc(412)] Failed to initialize extension: /data/app-lib/com.company.MyApp.debug-10/libswresample-0.so
09-06 12:40:56.802 12976-13134/com.company.MyApp.debug W/chromium: [WARNING:xwalk_external_extension.cc(58)] Error loading extension '/data/app-lib/com.company.MyApp.debug-10/libgnustl_shared.so': couldn't …

我使用window.location.href有一个奇怪的JavaScript问题,它显然只影响Firefox(我使用的是3.6).

通常window.location.href不是只读的,这在FF中完美运行:

window.location.href = "http://google.com/";

但是,当我调用函数来响应onunload事件()时,这不能按预期工作:

function testThis() {
    alert ("1: " + window.location.href);
    window.location.href = "http://google.com/";
    alert ("2: " + window.location.href);
    return false;
}

在这两种情况下,警报都会在FF中显示页面的当前位置,而不进行更改.没有JavaScript错误,onunload事件成功调用该函数,因此问题似乎是编辑或替换window.location.href的值.

我尝试过使用window.location,document.location.href,甚至尝试更改window.location.search.事件(特别是onunload事件)是否可能导致window.location.href变为只读？