summary

问题 came across this seemingly new package - skimr, which looks pretty nifty, and was trying it out and looks like I'm missing some package installation. Skim works fine except that it doesn't print the histogram, it is supposed to print for numeric variables. I am merely trying the examples given in the documentation. Link to skimr documentation here - https://github.com/ropenscilabs/skimr#skimr this is the code I'm using devtools::install_github("hadley/colformat") devtools::install_github(

问题 If you right-click on a file in Windows and select Properties , you can manage some properties in de Summary tab, such as Title, Subject and Author, like in this example: I'm trying to find a way to read these properties using Java . Is there a library for this? Is this even possible? Thanks in advance! Peter 回答1: That information is stored in an NTFS Alternate Data Stream named "♣SummaryInformation" - not sure if Java supports teh reading of ADS data via the colon notation. Update:

问题 i have a list in R, which i attached. > attach(myList) > summary(myList) Length Class Mode grData 3 data.frame list maxDate 1 POSIXct numeric query 1 -none- character newData 3 data.frame list updateQuery 1 -none- function Okay, my list is really attached > search() [1] ".GlobalEnv" "myList" "package:xlsx" "package:xlsxjars" [5] "package:rJava" "package:quantmod" "package:TTR" "package:xts" [9] "package:zoo" "package:tidyr" "package:stringr" "package:RPostgreSQL" [13] "package:DBI" "package

问题 I want to extract the coefficients (estimates, tvalues, etc) of LM ouputs to a dataframe. I need to store all coefficients in a dataframe for all regression outputs, since I have 949 separate outputs. The PROBLEM is that some of the outputs include NA's for a number of variables. When I export these summaries, it excludes the NA's and only outputs the variables that have true values. Since I need to bind all the values in rows, I want to maintain the same structure of all estimates (and so NA

问题 I'm stumped with how I should proceed. I have some dummy data below: Date <- as.POSIXct(c('2018-03-20 11:52:25', '2018-03-22 12:01:44', '2018-03-20 12:05:25', '2018-03-20 12:10:40', '2018-03-20 12:12:51 ')) Sites<-c(4, 4, 4, 6, 7) Individual<-c("A", "A", "A", "B", "B") data.frame(Individual, Date, Sites) Producing this data frame: Individual Date Sites A 2018-03-20 11:52:25 4 A 2018-03-20 12:01:44 4 A 2018-03-20 12:05:25 4 B 2018-03-20 12:10:40 6 B 2018-03-20 12:12:51 7 For each individual, I

问题 Following is my code to show a grid panel with total cost summary. I want to show another summary row with average. So any help? Ext.require(['Ext.data.*', 'Ext.grid.*']); Ext.onReady(function() { Ext.define('NewEstimate', { extend: 'Ext.data.Model', fields: ['description', 'cost'], validations: [{ type: 'length', field: 'description', min: 3 }, { type: 'int', field: 'cost', min: 1 }] }); var rowEditing = Ext.create('Ext.grid.plugin.RowEditing'); var store = Ext.create('Ext.data.Store', {

问题 I need a convenient way to generate stub of class or method summary in C#. Like this sample summary: public class TestClass { /// <summary>DoWork is a method in the TestClass class. /// <para>Here's how you could make a second paragraph in a description. <see cref="System.Console.WriteLine(System.String)"/> for information about output statements.</para> /// <seealso cref="TestClass.Main"/> /// </summary> public static void DoWork(int Int1) I wasn't able to find such feature out of the box in

问题 Is there a possibility to use weights with dplyr : summarise function? Let us imagine I want to calculate a weighted table dta = structure(list(PHHWT14 = c(530, 457, 416, 497, 395, 480, 383, 420, 499, 424, 504, 497, 449, 406, 492, 470, 418, 407, 403, 362, 393, 368, 423, 448, 511, 511, 423, 470, 453, 429, 439, 425, 431, 443, 480, 452, 472, 406, 460, 436, 574, 456, 399, 476, 423, 501, 399, 459, 396, 409, 423, 399, 383, 433, 436, 413, 403, 414, 410, 337, 472, 448, 487, 442, 475, 410, 478, 483,

问题 I would like to make a simple table with dplyr and summarise But I can't really figure out how ... (Even though it should be quite simple). I have a matrix of sequences. When I simply tabulate table(dta) I have the result I want. dta acquaintance alone child notnotnot nuclear 1 2 17 19 131 nuclear and acquaintance nuclear and acquaintance nuclear and acquaintance nuclear and acquaintance partner 1 1 1 35 2 However, I can't figure out how to do the same with summarise Any suggestion ? dta =

问题 df1=data.frame(c(2,1,2),c(1,2,3,4,5,6),seq(141,170)) #create data.frame names(df1) = c("gender","age","height") #column names df1$gender <- factor(df1$gender, levels=c(1,2), labels=c("female","male")) #gives levels and labels to gender df1$age <- factor(df1$age, levels=c(1,2,3,4,5,6), labels=c("16-24","25-34","35-44","45-54","55-64","65+")) # gives levels and labels to age groups I am looking to produce a summary of the height values subsetted by gender and then age. Using the subset and by