Keep it simple, stupid. https://irdya.top/ 2026-05-06T11:59:32+00:00 https://irdya.top/ https://irdya.top/_media/wiki/logo.png text/html 2026-03-29T15:16:51+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/ja/misc/digital_transceiver?rev=1774797411&do=diff デジタル小電力コミュニティ無線の周波数一覧 チャンネル周波数1142.934375MHz2142.940625MHz3142.946875MHz4142.953125MHz5142.959375MHz6142.965625MHz7142.971875MHz8142.978125MHz9142.984375MHz10146.934375MHz11146.940625MHz12146.946875MHz text/html 2024-05-14T22:17:14+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/en/misc/qemu?rev=1715725034&do=diff Setup QEMU with Network Make /etc/rc.d/rc.ip_forward executable. The command below is unneeded since reboot. /etc/rc.d/rc.ip_forward start Create /usr/local/bin/qemu-ifup /usr/sbin/brctl addbr br0 /usr/sbin/ip addr add 172.20.0.1/16 dev br0 /usr/sbin/ip link set br0 up /usr/sbin/dnsmasq --interface=br0 --bind-interfaces --dhcp-range=172.20.0.2,172.20.255.254 /usr/sbin/tunctl -t tap0 -u 500 /usr/sbin/ip link set tap0 up promisc on /usr/sbin/ip link set tap0 master br0 /usr/sbin/iptables -t n… text/html 2024-02-16T14:37:47+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/ja/sidebar?rev=1708094267&do=diff メインページ ja index その他 * Nextcloud * JupyterLab ブログ * フクロウの暇つぶし text/html 2024-02-16T14:36:56+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/zh-tw/sidebar?rev=1708094216&do=diff 起始頁 zh-tw index 其他功能 * Nextcloud * JupyterLab text/html 2024-02-16T14:36:36+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/en/sidebar?rev=1708094196&do=diff Homepage en index Others * Nextcloud * JupyterLab text/html 2024-02-16T14:36:09+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/zh/sidebar?rev=1708094169&do=diff 首页 zh index 其他功能 * Nextcloud * JupyterLab 友情链接 * 张叔阳的blog text/html 2023-12-25T01:26:38+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/zh/black_18r?rev=1703467598&do=diff text/html 2023-12-25T01:26:21+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/zh/black_18r/socialism?rev=1703467581&do=diff text/html 2023-10-14T09:32:25+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/zh/med/calc?rev=1697275945&do=diff 流行病学计算 患病对照合计阳性aba+b阴性cdc+d合计a+cb+da+b+c+d * 敏感度=$\frac{a}{a+c}$ * 特异度=$\frac{d}{b+d}$ * 阳性预测值$\frac{a}{a+b}$ * 阴性预测值=$\frac{d}{c+d}$ * 假阳性率=$\frac{b}{b+d}$=1-特异度 * 假阴性率=$\frac{c}{a+c}$=1-敏感度 * 阳性似然比=$\frac{敏感度}{假阳性率}$=$\frac{敏感度}{1-特异度}$=$\frac{a(b+d)}{b(a+c)}$ * 阴性似然比=$\frac{假阴性率}{特异度}$$\frac{1-敏感度}{特异度}$$\frac{c(b+d)}{d(a+c)}$$\frac{a+c}{a+b+c+d}$$\frac{a}{a+b}$$\frac{检查前概率\times敏感度}{1+检查前概率\times(敏感度+特异度-1)-特异度}$$\frac{c}{c+d}$$\frac{检查前概率\times(1-敏感度)}{特异度-检查前概率\times(敏感度+特… text/html 2023-10-14T09:08:41+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/ja/med/calc?rev=1697274521&do=diff 疫学計算 疾患対照合計陽性aba+b陰性cdc+d合計a+cb+da+b+c+d * 感度=$\frac{a}{a+c}$ * 特異度=$\frac{d}{b+d}$ * 陽性的中率$\frac{a}{a+b}$ * 陰性的中率=$\frac{d}{c+d}$ * 偽陽性率=$\frac{b}{b+d}$=1-特異度 * 偽陰性率=$\frac{c}{a+c}$=1-感度 * 陽性尤度比=$\frac{感度}{偽陽性率}$=$\frac{感度}{1-特異度}$=$\frac{a(b+d)}{b(a+c)}$ * 陰性尤度比=$\frac{偽陰性率}{特異度}$=$\frac{1-感度}{特異度}$=$\frac{c(b+d)}{d(a+c)}$ ---------- $\frac{a+c}{a+b+c+d}$$\frac{a}{a+b}$$\frac{検査前確率\times感度}{1+検査前確率\times(感度+特異度-1)-特異度}$$\frac{c}{c+d}$$\frac{検査前確率\times(1-感度)}{特異度-検査前確率\times(… text/html 2022-07-14T06:20:24+00:00 鮑誠 (tc@undisclosed.example.com) https://irdya.top/zh/funny/accident?rev=1657779624&do=diff 车祸 * 鬼探头：视野被一侧车辆或建筑遮挡时，视野盲区突然窜出一个人或一辆车。 * 迷踪步：过马路时似过非过，走到半路又突然折返，容易造成双方互相预判对方的预判，发生事故。