Type I error vs. Type II error (statistics) 统计里面在区分样本时,需要拒绝或接受一个null hypothesis(H0),比如H0是某样本为真,经过试验,研究者觉得无法拒绝该样本为真这一假设,而事实是该样本为 false。这种情况模型没有拒绝 false positive,引发的错误称为 type 1 error, 翻译出来就是“假阳性”。 同理,...
Type 1 error: reject the null but null is true # since type 1 error is equal to Alpha we get to choose exactly how often we are willing to make this error when we choose our Alpha # essentially false positive: we think we've detected an effect, but there isn't one Type 2 error:...
Atype 1 erroris when you incorrectly reject a true null hypothesis. It’s also called a false positive. Atype 2 erroris when you don’t reject a false null hypothesis. It’s also called a false negative. Be sure tosubscribe hereor to myexclusive newsletterto never miss another ...
方法/步骤 1 使用exp导出dmp文件，报exp-00091 2 产生公共引用文件，修改NLS_LANGmore ~/.bash_profile > /home/oracle/common.sh查询数据服务端编码格式select userenv('language') from dual;查询结果：编码格式vi common.sh修改：export NLS_LANG="查询到的编码格式"3 编写exp脚本化vi exp_orac...
<HUAWEI>system-view[~HUAWEI]diagnose[~HUAWEI-diagnose]display mfe slot9mfe-id 0 device error-statistics allCntGroup929: Error [Type: 1 ResFlag: 0 SvcType: 2 Sid: 1 Num: 1 ] CntGroup930: Error [Type: 1 ResFlag: 1 SvcType: 80 Sid: 65535 Num: 4000 ] ...
<HUAWEI>system-view[~HUAWEI]diagnose[~HUAWEI-diagnose]display mfe slot9mfe-id 0 device error-statistics allCntGroup929: Error [Type: 1 ResFlag: 0 SvcType: 2 Sid: 1 Num: 1 ] CntGroup930: Error [Type: 1 ResFlag: 1 SvcType: 80 Sid: 65535 Num: 4000 ] ...
Table typeTable cardinality (n)Recompilation threshold (# modifications) Temporary n < 6 6 Temporary 6 <= n <= 500 500 Permanent n <= 500 500 Temporary or permanent n > 500 MIN ( 500 + (0.20 * n), SQRT(1,000 * n) ) For example if your table contains 2 million rows, then the...
SQL_SUCCESS、SQL_SUCCESS_WITH_INFO、SQL_STILL_EXECUTING、SQL_ERROR或SQL_INVALID_HANDLE。 诊断 当SQLStatistics返回SQL_ERROR或SQL_SUCCESS_WITH_INFO时,可以通过调用 SQLGetDiagRec 来获取关联的 SQLSTATE 值,该SQLGetDiagRec的HandleType为 SQL_HANDLE_STMT,句柄为StatementHandle。 下表列出了通常由SQLStatistics返回...
If your variances are unequal, this can affect the Type I error rate. The assumption of homogeneity of variance can be tested using Levene's Test of Equality of Variances, which is produced in SPSS Statistics when running the independent t-test procedure. If you have run Levene's Test of ...
1 StatisticsType string 是 指定要查看的统计值类型。取值: exposureType:暴露在互联网中的网关资产。 exposurePort:暴露在互联网中的端口。 exposureComponent:暴露在互联网中的系统组件。 exposureIp:暴露在互联网中的 IP 地址。 exposureType StatisticsTypeInstanceValue string 否 StatisticsType 为exposureType 时,...