UN pool

1. In diagnostic research, we often use AUC, that is, area under the curve, which reflects the overall diagnostic value of a diagnostic indicator. We also often compare the AUC size of two different indicators and whether the difference is statistically significant to reflect the stronger diagnostic ability of the two indicators
in diagnostic research, we may propose a new diagnostic index, whose diagnostic accuracy may be higher than that of previous diagnostic methods. In order to study whether the diagnostic value of this new diagnostic index is better than that of the previous diagnostic index, we need to design an experiment to explore, so how to calculate the sample size of this experiment? In addition to the AUC of the previous diagnostic method, we may also encounter the situation that we need to test whether the AUC of a new diagnostic method is greater than 0.5 and the difference is statistically significant. This time we use pass 11.0 software to estimate the sample size in these two cases
in pass 11.0, you need to open the calculation process of "testsfor one ROC curve", as shown in the red circle in the figure below:

after opening, the dialog box is as follows:

example 1: you need to check whether the diagnostic AUC of a continuity index is greater than 0.5. According to the previous information, we know that the AUC is 0.75, take beta = 0.1, alpha = 0.05, and the sample number of case group and control group is equal, Bilateral test. Then fill in the above figure in turn: power = 0.9, alpha = 0.05, N - = use R, r = 1, auc0 = 0.5, AUC1 = 0.75, lower fpr = 0.00, upper fpr = 1.00, type of data = continuous, alternative hypothesis = two sided test.
then click run, and the calculation results are shown in the figure below, indicating 25 subjects in each group

case 2: it is necessary to test whether the diagnostic AUC of a continuity index is greater than 0.7 (0.7 is the AUC of previous diagnostic methods). According to the previous information, the AUC is 0.85, and the beta = 0.1, alpha = 0.05, the sample number ratio of case group and control group is 1:2, and the two-sided test is used. Then fill in the above figure in turn: power = 0.9, alpha = 0.05, N - = use R, r = 2, auc0 = 0.7, AUC1 = 0.85, lower fpr = 0.00, upper fpr = 1.00, type of data = continuous, alternative hypothesis = two sided test.
then click run, and the calculation results are shown in the figure below, indicating that 43 cases need to be studied in the case group and 86 cases need to be studied in the control group

2. Error: bad_ POOL_ CALLER
If this is the first time you' ve seen this stop error screen,restart your computer,If this screen appears again,follow these steps:
Check to make sure any new hardware or software is properly installed.
If this is a new installation, ask your hardware or software manufacturer for any windows undates you might need.
If problem continue, disable or remove any newly installed hardware or software,disable BIOS memory options such as caching or shadowing.
If you need to use safe mode to remove or disable components, restart your computer, press F8 to select Advanced start up options,and then select safe mode.
Technical information
STOP: 0*000000C2, 0*00000007, If this is the first time you see this error screen, restart the computer. If it appears again, follow these steps: check that the newly installed hardware or software is installed correctly. If you have just installed it, you may need to get an update from your hardware or software manufacturer. If the problem persists, it is better to remove or disable the newly installed hardware or software, and disable the memory option in BIOS than cache or map. If you want to use safe mode to remove or disable components, restart the computer, press F8 to select the Advanced Startup menu and select safe mode

a 0x000000c2 error indicates that the kernel program or the driver of the hardware device is trying to perform an incorrect memory operation. This error is usually caused by a bug in the application software or hardware device driver

if you encounter an error of 0x000000c2, it is recommended to check whether new application software or hardware device drivers have been installed recently. If so, please uninstall the recently installed applications or drivers one by one to see if the problem can be solved; Secondly, please use the "replacement method" to check whether the computer's memory and motherboard work normally

if the security mode can't go in, the replacement method will be used directly<

to solve this problem, close Kaspersky Anti Virus NDIS filter in the network connection properties.
first check whether new software and hardware have been installed recently, whether the installation is correct, and whether the driver has new patches, and try to remove or uninstall the software and hardware
whether the BIOS has been set recently, you can restore the BIOS factory settings, or check the BIOS mapping and close it
if the above methods do not work, you can try to change the root memory. If there are two, just plug in one first, it is likely that the memory is not compatible.

3. Error: bad_ POOL_ CALLER
If this is the first time you' ve seen this stop error screen,restart your computer,If this screen appears again,follow these steps:
Check to make sure any new hardware or software is properly installed.
If this is a new installation, ask your hardware or software manufacturer for any windows undates you might need.
If problem continue, disable or remove any newly installed hardware or software,disable BIOS memory options such as caching or shadowing.
If you need to use safe mode to remove or disable components, restart your computer, press F8 to select Advanced start up options,and then select safe mode.
Technical information
STOP: 0*000000C2, 0*00000007, If this is the first time you see this error screen, restart the computer. If it appears again, follow these steps: check that the newly installed hardware or software is installed correctly. If you have just installed it, you may need to get an update from your hardware or software manufacturer. If the problem persists, it is better to remove or disable the newly installed hardware or software, and disable the memory option in BIOS than cache or map. If you want to use safe mode to remove or disable components, restart the computer, press F8 to select the Advanced Startup menu and select safe mode

a kernel process or driver incorrectly attempts to enter memory for operation. It is usually caused by the driver or the software with bug
1. If it is not the latest system patch package, please upgrade the latest system patch package
2. If it is generated after installing the driver or software, please disable or uninstall
3. If the above operation is invalid, it is recommended to repair and install or re install the system<

4, turn off Kaspersky Anti Virus NDIS filter in the network connection properties.
first check whether new software and hardware have been installed recently, whether the installation is correct, and whether the driver has new patches, and try to remove or uninstall the software and hardware
whether the BIOS has been set recently, you can restore the BIOS factory settings, or check the BIOS mapping and close it
if the above methods do not work, you can try to change the root memory. If there are two, just plug in one first, it is likely that the memory is not compatible.

4. Entity里面： class stockPoolHistoryTo(){ private String attHisId; get... set... } Action里面： private List<Map<String, Object>> stockPoolHistoryList; public String stockPoolHistoryList() { stockPoolHistoryList = stockPoolHistoryService.stockPoolHistoryList(); return SUCCESS; } Jsp里面： <c:forEach items="${stockPoolHistoryList}" var="item" varStatus="s"> <tr> <td> <fs:property value="stockPoolHistoryTo.ATTHISID" /> </td> </tr> </c:forEach> Js里面： var id=document.getElementById('reterte'); if(confirm('确定要删除吗?')){ var url='${ctx}/promotionManage/promotionManageUnTop.action?promotionManageTo.id='+id; openURL(url); } Sqlmaps里面： <select id="stockPoolHistory.stockPoolHistoryList" parameterClass="java.util.HashMap" resultClass="java.util.HashMap"> select h.att_his_id as attHisId from jqy.tzjc_t_attpool_his h </select>

5. 1. Install genuine anti-virus software, check and kill trojan virus, rogue software
2. If not, enter the safe mode to kill the virus
3. If the above two methods do not work, you need to re install the system
4. After installing the system, it's better to install a "one click recovery". After backup, if the system has problems, you can avoid the trouble of re installing the system.

6. Are these records taken from the database? If so, add ID as the parameter when generating the delete link< br />< a href=" delete.jsp?id="+& lt;%= rs.getString(id)%>& gt;& lt;/ a> In this way, each deleted connection will have its corresponding ID number. When you click delete, you can get it in the jump page< br />String id = request.getParameter(" id");
then you can delete this record with SQL statements
I don't know if I can help you.

7. How to solve the problem that the created objects are not displayed in the polygons mole of Maya? Maya menu file file file new scene create new scene open scene open scene save scene save scene as renamed save import import export all export selection export selected object create reference import scene file reference editor import scene editor project new create new project edit current Edit current project set specify current project exit edit edit undo cancel last operation redo restore last operation repeat repeat last operation keys keys cut keys cut keys keys paste keys delete keys delete keys scale keys scale keys baby simulation delete by type delete his Construction history channels static channels motion paths expressions constraints rigid bodies rigid bodies delete all by type delete all history construction history channels static channels motion paths Motion paths expressions constraints unused transformations join IK handle with deformed joints S reverse motion handles lattices turning clusters family sculpt objects wires meshes lights cameras image planes image boards shading groups and materials particles rigid bodies rigid objects rigid constraints rigid constraints select all select all by type select all joints to connect IK handles reverse motion controls Making handles lattices turning clusters family sculpting objects wires mesh transformations geometry NURBS geometry polygon geometry lights lights lights cameras image planes image board particles rigid bodies rigid objects rigid constraints quick select set layers layers new layers creating new layers rename Layer change layer name remove current layer remove current layer layer editor Layer Editor transfer to layer select all on layer select all objects on layer hide layer hide all layers show layer show all layers template layer temporary layer template layer inactive layer Hide inactive layer templat E inactive layers temporary inactive layers plicate group ungroup

8. <? xml version=" 1.0" encoding=" UTF-8" ?& gt;< br /><! DOCTYPE configuration PUBLIC "-// mybatis.org//DTD Config 3.0//EN" & quot; http://mybatis.org/dtd/mybatis-3-config.dtd"& gt; < br />< configuration> < br /> <!-- Parameter setting -- & gt< br /> < settings> < br /> <!-- This configuration enables the global mapper to enable or disable caching -- & gt< br /> < setting name=" cacheEnabled" value=" true" /& gt; < br /> <!-- Globally enable or disable deferred loading. When disabled, all associated objects are loaded immediately -- & gt< br /> < setting name=" lazyLoadingEnabled" value=" true" /& gt;< br /><!-- When enabled, objects with delayed loading properties will be fully loaded with any properties when called. Otherwise, each property will be loaded as needed -- & gt< br /> < setting name=" aggressiveLazyLoading" value=" true" /& gt; < br /><!-- Allow or disallow multiple result sets to be returned from a single statement (need appropriate drivers) - & gt< br /> < setting name=" multipleResultSetsEnabled" value=" true" /& gt; < br /><!-- Use column labels instead of column names. Different drivers perform differently here. Refer to the driver documentation or fully test the two methods to determine the driver to use -- & gt< br /> < setting name=" useColumnLabel" value=" true" /& gt; < br /><!-- Allow JDBC to support generated keys. Need the right driver. If it is set to true, this setting forces the generated key to be used. Although some drivers refuse to be compatible, it is still valid (such as Derby) - & gt< br /> < setting name=" useGeneratedKeys" value=" true" /& gt; < br /><!-- Specifies how mybatis automatically maps columns to fields / properties. Partial will only automatically map simple, no nested results. Full automatically maps any complex result (nested or otherwise) - & gt< br /> < setting name=" autoMappingBehavior" value=" PARTIAL" /& gt; < br /><!-- When the unknown column (or unknown attribute) is detected, how to deal with it? By default, there is no prompt, which is very inconvenient in the test, and it is not easy to find the error
none: no processing (default)
warning: details in the form of warning log
failing: mapping failed, exception and details thrown
-- & gt< br />< setting name="& quot; value=" WARNING"/& gt;< br /><!-- Configure the default actuator. There is nothing special about the simple actuator. Reuse executors reuse preprocessing statements. Batch executor reuse statements and batch update -- & gt< br /> < setting name=" defaultExecutorType" value=" SIMPLE" /& gt; < br /><!-- Set the timeout, which determines how long the driver will wait for a database response -- & gt< br /> < setting name=" defaultStatementTimeout" value=" 25000" /& gt; < br /><!-- Set the number of query return values, which can be overridden by the query value -- & gt< br />< setting name=" defaultFetchSize" value=" 100"/& gt;< br /><!-- Allow pagination in nested statements -- & gt< br />< setting name=" safeRowBoundsEnabled" value=" false"/& gt;< br /><!-- Do you want to start the automatic camel case mapping, that is, from the classic database column name a_ A similar mapping from column to the classic java property name acolumn--& gt;< br />< setting name=" mapUnderscoreToCamelCase" value=" false"/& gt;< br /><!-- Mybatis uses local cache mechanism to prevent circular references and speed up repeated nested queries. The default value is session, in which case all queries executed in a session are cached. If the value is set to state, the local session is only used for statement execution, and different calls to the same sqlsession will not share data--& gt;< br />< setting name=" localCacheScope" value=" SESSION"/& gt;< br /><!-- When no specific JDBC type is provided for the parameter, specify the JDBC type for a null value. Some drivers need to specify the JDBC type of the column. In most cases, the general type can be used directly, such as null, varchar
other--& gt;< br />< setting name=" jdbcTypeForNull" value=" OTHER"/& gt;< br /><!-- Specifies which object's method triggers a delayed load--& gt;< br />< setting name=" lazyLoadTriggerMethods" value=" equals,clone,hashCode,toString"/& gt; < br /> </ settings> < br />
<!-- Alias definition -- & gt< br /> < typeAliases> < br /> < typeAlias alias=" pageAccessURL" type=" com.lgm.mybatis.model.PageAccessURL" /& gt; < br /> </ typeAliases> < br />
<!-- Custom type processor -- & gt< br /> < typeHandlers>< br /><!-- & lt; typeHandler handler=" com.xhm.util.BooleanTypeHandlder" /& gt; --& gt;< br /><!-- Scan the custom type processor under the whole package -- & gt< br />< package name=" com.xhm.util"/& gt;< br /> </ typeHandlers>< br />
<!-- Pager interceptor of plugins plug in -- & gt< br /> < plugins>< br /> < plugin interceptor=" com.xhm.util.PageInterceptor"& gt;& lt;/ plugin>< br /> </ plugins>< br />
<!-- Configure environment environment -- & gt< br /> < environments default=" development"& gt; < br /> <!-- Environment configuration 1, each sqlsessionfactory corresponds to an environment -- & gt< br /> < environment id=" development1"& gt; < br /> <!-- Transaction configuration type = JDBC, managed 1. JDBC: this configuration directly and simply uses the commit and rollback settings of JDBC. It relies on connections from the data source to manage transaction scope
2. Managed: this configuration does little. It never commits or rolls back a connection. It allows the container to manage the entire life cycle of a transaction (such as the context of a spring or Jee application server). By default, it closes the connection. However, some containers don't want this, so if you need to stop it from the connection, set the closeconnection property to false -- & gt< br /> < transactionManager type=" JDBC" /& gt; < br /> <!-- & lt; transactionManager type=" MANAGED"& gt; < br /> < property name=" closeConnection" value=" false"/& gt; < br /> </ transactionManager> --& gt; < br /> <!-- Data source type: type = unpooled, pooled, JNDI 1. Unpooled: the implementation of this data source is to simply open and close the connection every time it is requested. It's a bit slow, which is a good choice for simple applications, because it doesn't require a timely available connection
different databases perform differently for this, so it is not important for some databases to configure the data source. This configuration is also idle. 2. Pool: This is the implementation of the data source connection pool of JDBC connection objects, which is used to avoid the necessary initial connection and authentication time when creating new connection instances
this is a popular way for web applications to respond to requests quickly. 3. JNDI: the implementation of this data source is to use containers such as spring or application server. The container can centrally or externally configure the data source, and then place a JNDI context reference -- & gt< br /> < dataSource type=" UNPOOLED"& gt; < br /> < property name=" driver" value=" com.mysql.jdbc.Driver" /& gt; < br /> < property name=" url" value=" jdbc:mysql :// localhost:3306/xhm" /& gt; < br /> < property name=" username" value=" root" /& gt; < br /> < property name=" password" value=" root" /& gt; < br /> <!-- Default connection transaction isolation level & lt; property name="& quot; value="& quot; < br /> /> --& gt; < br /> </ dataSource> < br /> </ environment> < br />
<!-- Environment configuration 2 -- & gt< br /> < environment id=" development2"& gt; < br /> < transactionManager type=" JDBC" /& gt; < br /> < dataSource type=" POOLED"& gt; < br /> < property name=" driver" value=" com.mysql.jdbc.Driver" /& gt; < br /> < property name=" url" value=" jdbc:mysql :// localhost:3306/xhm" /& gt; < br /> < property name=" username" value=" root" /& gt; < br /> < property name=" password" value=" root" /& gt; < br /> <!-- The number of active (i.e. in use) connections that exist at any time -- & gt< br /> < property name=" poolMaximumActiveConnections" value=" 10" /& gt; < br /> <!-- Number of idle connections at any time -- & gt< br /> < property name=" poolMaximumIdleConnections" value=" 5" /& gt; < br /> <!-- The time that connections in the pool are checked before being forced to return -- & gt< br /> < property name=" poolMaximumCheckoutTime" value=" 20000" /& gt; < br /> <!-- This is a low-level setting to give the connection pool a chance to print log status, and to try to get the connection again, which often takes a long time (to avoid silent failure when the connection pool is not configured) - & gt< br /> < property name=" poolTimeToWait" value=" 20000" /& gt; < br /> <!-- The detection query sent to the data is used to verify whether the connection is working properly and is ready to accept the request--& gt; < br /> < property name=" poolPingQuery" value=" NO PING QUERY SET" /& gt; < br /> <!-- This is to enable or disable the detection query. If enabled, you must set the poolpingquery property -- & gt; with a legal SQL statement (preferably very fast)< br /> < property name=" poolPingEnabled" value=" false" /& gt; < br /> <!-- This is used to configure poolpingquery to be used more than once. This can be set to match the standard database connection timeout to avoid unnecessary detection -- & gt< br /> < property name=" poolPingConnectionsNotUsedFor" value=" 0" /& gt; < br />

9. The simplest way is to use Java. Util. Concurrent. Executors
call executors. Newcachedthreadpool() to get buffered thread pool
executors. Newfixedthreadpool (int nthreads) to get fixed size thread pool

10. There are many possibilities for this phenomenon,
you can try the above method:
first, check whether new software and hardware have been installed recently, whether the installation is correct, whether the driver has new patches, and try to remove or uninstall the software and hardware
whether the BIOS has been set recently, you can restore the BIOS factory settings, or check the BIOS mapping and turn it off
press the F8 key to enter the safe mode setting after starting the machine.