Shiny | 易学教程

Coding and Paper Letter（五）

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资源整理 1 Coding： 1.Python模块libpysal，pysal的核心组件。与pysal的区别目前没有明确。有空研究一下。功能都是Python空间分析的模块。 libpysal 2.R语言包mongrel，多项逻辑斯蒂-正态线性回归模型。 mongrel 3.R语言工程SLATRRA——Satellite Latency Assessment Tools for Real-time River Applications，用于实时河流应用的卫星延迟评估工具。包含Allen等人的数据分析和数字和表格的制作，“河流波浪传播时间的全球估计和低延迟卫星数据的影响”。代码的最基本部分包括：计算河流坡度；将兴趣点（POI：城市，水坝和仪表）连接到河网；模拟流量波动和计算行程时间；使用基于仪表的快速估算来验证模型；生成图表，并计算论文中提供的各种统计数据。 SLATRRA 4.R语言工程RSSA——统计分析用于估算GRWL数据库中的全球河流和河流表面积。 RSSA 5.R语言包nassR。通过R下快速统计载各种USDA数据的方法。 nassR 6.书籍《社会空间数据科学书》。 SSDSBook 7.R语言包getSpatialData。通过R可以轻松查询，预览，下载和预处理多种空间数据（包括MODIS, Landsat等卫星）。

R shiny ggplot2 heatmap: uniform size of plots and align left

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问题 In my shiny app I filter the heatmaps with a selectinput to show them in tab1. Everything is working fine. But, I have tried to get a uniform size a.) of the different heatmaps (all should have the same overall size and all should have same tile size), and b.) to align the heatmaps on the left side (actually it is centered). I am not able to get behind the issue, although I went through the online explanations. Thanks for your help. My code: global.R # global.R library(shiny) library(ggplot2)

Activate tabItem with either an actionButton or another actionButton in a shiny app

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问题 I have the shiny app below which includes tabItems. I would like when the app is launched for first time to display an actionbutton which will be out of the tabItems content. Then when I press it I will be moved into the Consent tabItem. This button will have no use from there and later and it should be disappeared since the tabItems' content will be displayed. I want also the user to be able to press Consent button before pressing "Get Started" button and still be able to move to Consent

Linear Regression R Shiny application with multiple independent variable selection

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问题 I'm not able to modify the script below to make it work with multiple independent variables. It only works when a single independent variable is selected. I've added "multiple = TRUE" in the script to allow the selection of multiple variable at the same time. But that doesn't really affect the plots and stats generated. Any suggestion of how this can be resolved? Any csv file with numeric and non numeric data would work to test the script. Saving the iris or mtcars r datasets as csv files

Linear Regression R Shiny application with multiple independent variable selection

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R shiny - Extract nested vector from dynamic tab list

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问题 actually I'm working for the first time on a shiny app. Based on an uploaded xlsx, the shiny app creates an reactive output called garnetRF(). Based on the number of differently named samples in the uploaded xlsx, the app creates dynamic tabs in output$tabp. In the tabs, the user can pick a color to be displayed for each sample. So far, so good. Now, in the ouput$setting I want to plot the results with the colors the user picked. Thus, my idea was to rename the sample levels (cls.0) by the

Shiny: textInput does not respond in R

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问题 I wrote codes that get plots in shiny. I get the plots when I use plot(c(12,11)) as you can see in the codes, but when I use plot(c(input$ vec)) or plot(input$ vec) doe not give me to change the plots. library(shiny) library(ggplot2) library(dplyr) library(purrr) ui <- fluidPage( sidebarLayout( sidebarPanel( textInput('vec', 'Enter a vector (comma delimited)', "0,1") ), mainPanel( plotOutput(outputId = "distPlot"), ) ) ) server <- function(input, output) { output$distPlot <- renderPlot({ qo <

Apply css formating only on specific tabItem of a shiny dashboard

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问题 I have the shiny app below in which I want to apply css formating only on specific tabItem of the shiny dashboard but it is applied on both. How can I specify it to be applied only on 1st? library(shiny) library(shinydashboard) ui <- dashboardPage( dashboardHeader(), dashboardSidebar(menuItem("Welcome", tabName = "tab1", icon = icon("house")), menuItem("Information", tabName = "tab2", icon = icon("table"))), dashboardBody( tabItems( tabItem("tab1", tags$head(tags$style(HTML(' body{ font-size:

Change borders' color, length and distance from label in a shiny widget using css

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问题 I have the shiny app below in which I use css to change the borders' color of the shiny widget to red and also change the length of the input and its distance from its label "Name" . But despite some of the parameters I have given in css part work, those mentioned above do not. Here is what needs to be done. library(shiny) library(shinydashboard) library(shinydashboardPlus) library(shinyjs) css <- " .container { margin: 20px; padding: 15px; } #expr-container .selectize-input { font-size: 44px

Activate the same event with the use of two different actionbuttons in a shiny app

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问题 I have the shiny app below. When the app is launched for 1st time it displays an actionbutton Get Started in the main body and 3 actionbuttons in the header. The user can press whichever of these 3 header buttons he wishes before pressing the Get Started button. Its ok that he cannot see the Get Started button again If he press Consent he will be moved in the Consent tabItem. Then he can write a name press Run Project and see the plot in the Results tabItem. If he press Run Project before