我刚刚在 Ubuntu 16.0.4 中编译了 MySQL 8.0.12 版本。
按照网站中的说明制作以下 my.cnf 文件后:
[mysqld]
datadir=/usr/local/mysql/data
socket=/tmp/mysql.sock
port=3306
log-error=/usr/local/mysql/data/localhost.localdomain.err
user=mysql
secure_file_priv=/usr/local/mysql/mysql-files
local_infile=OFF
log_error = /var/log/mysql/error.log
# Remove case sensitive in table names
lower_case_table_names=1
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我收到以下错误:
2018-08-11T19:45:06.461585Z 1 [ERROR] [MY-011087] [Server] Different lower_case_table_names settings for server ('1') and data dictionary ('0').
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我应该更改什么才能使数据字典与服务器设置保持一致?
我正在尝试通过以下句子重新加载Solr核心(版本3.6.0):
curl http://localhost:8983/solr/admin/cores?action=RELOAD\&core=mycore
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当我执行它时,我得到以下响应:
<?xml version="1.0" encoding="UTF-8"?>
<response>
<lst name="responseHeader">
<int name="status">0</int>
<int name="QTime">1316</int>
</lst>
</response>
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当我在浏览器中放置这样的URL时,我得到了类似的响应(差异是QTime的值).
我的问题是,如果我从浏览器调用URL我可以在日志信息中看到重载已执行,但如果我从CURL语句中调用它,我在日志信息中看不到任何内容(即比方说,没有执行重载过程).
我是否需要更改一些配置数据?似乎呼叫没有到达Solr服务器......
我正在将报告转储到文件中,并且我正在使用 openxlsx 这样做,如下所示:
library(openxlsx)
set.seed(100)
dataset <- data.frame(A=runif(100),B=runif(100),C=sample(c("A","B","C"), 100, replace=T))
hs <- createStyle(fontColour = "#ffffff", fgFill = "#4F80BD",
halign = "center", valign = "center", textDecoration = "bold",
border = "TopBottomLeftRight")
wb = createWorkbook()
addWorksheet(wb = wb, sheetName = "example", gridLines = T, zoom = 70)
writeData(
wb,
sheet = "example",
x = dataset,
withFilter=T,
borders="all",
borderStyle="thin",
headerStyle=hs
)
# The width of the columns will be automatically adjusted
setColWidths(wb, sheet = "example", cols=1:ncol(dataset), widths = "auto")
saveWorkbook(wb, "example.xlsx", overwrite=T)
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我已经激活了 …
当我以响应式方式使用 insertUI 创建新对象时,我创建的所有观察者都工作得很好,如以下虚拟代码所示:
library(shiny)
# Define the UI
ui <- fluidPage(
actionButton("adder", "Add"),
tags$div(id = 'placeholder')
)
# Define the server code
server <- function(input, output) {
rv <- reactiveValues()
rv$counter <- 0
observeEvent(input$adder,{
rv$counter <- rv$counter + 1
add <- sprintf("%03d",rv$counter)
filterId <- paste0('adder_', add)
divId <- paste0('adder_div_', add)
elementFilterId <- paste0('adder_object_', add)
removeFilterId <- paste0('remover_', add)
insertUI(
selector = '#placeholder',
ui = tags$div(
id = divId,
actionButton(removeFilterId, label = "Remove filter", style = "float: right;"),
textInput(elementFilterId, label = …Run Code Online (Sandbox Code Playgroud) 我使用以下代码来计算使用RandomForest作为分类器的灵敏度,特异性,NPV和PPV .
suppressMessages(require(randomForest));
classifier <- randomForest(x.train,y.train,ntree=300,importance=T)
prediction <<- predict(classifier,x.test,type="response")
suppressMessages(require(caret));
accuracyData <- confusionMatrix(prediction,y.test)
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在accuracyData中,我有关于预测质量的所有信息(灵敏度,特异性等).
无论如何,我想对不同的阈值进行此计算,但我不知道如何在我的代码中指定这样的值.