R is a programming language and environment used primarily for statistical data analysis.

Share tech news, updates, or what's on your mind.

Sign up to Post

private void FileDataRequest(StreamedFileDataRequest r)


MemoryStream m = new MemoryStream();

r = m.AsOutputStream as StreamedFileDataRequest;
void loop(){
StorageLibrary l = await StorageLibrary.GetLibraryAsync(FromKnownId.Pictures);

Scrollviewer scrollviewer = new Scrollviewer();

RenderTargetBitmap r = null;

 r = new RenderTargetBitmap();

                await r.RenderAsync(scrollviewer);


                var file0 = await l.SaveFolder.CreateFileAsync("poikidiki");

                await FileIO.WriteBufferAsync(file0, await r.GetPixelsAsync());

                Windows.Storage.Streams.IRandomAccessStream b = await file0.OpenAsync(FileAccessMode.ReadWrite);


                var file = await StorageFile.CreateStreamedFileAsync("effort06.jpg", new StreamedFileDataRequestedHandler(FileDataRequest),Windows.Storage.Streams.RandomAccessStreamReference.CreateFromFile(file0));


                await file.CopyAsync(l.SaveFolder);

I have this:

it doesn't copy the bytes to the streamed file.

help appreciated
Technology Partners: We Want Your Opinion!
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Hi ,

I am passing list value into the datatable.

I want to find the column first and then check whether the value exist or not for that columns.

I want to write in LINQ Query as bool true/false

for example,

string str ABSCHECK = ABS A#ABS B // input value

string[] words1 = str.Split('#'); //Splitting the values

words1[0] ABS A //list

           [1] ABS B

The above two value is a column name and i want to check in the below table.


A      ABS A(MN)      ABS A(MX)      ABS B(MN)      ABS B(MX)      ABS C(MN)      ABS C(MX)
100      100      100      100      100      100      100
For ABS A ==> Matching two columns and values present(like ABS A(MN) and ABS A(MX))

For ABS B ==> Matching two columns and values exists (like ABS B(MN) and ABS B(MX))

So i want to return result is true.

if nothing is matching, it means (column not identified and value not present) returns false.

How to write LINQ..?

below is my query

string str ABSCHECK = ABS A#ABS B // input value

string[] words1 = str.Split('#'); //Splitting the values

bool results = (from r in DTTABLE.AsEnumerable()
                           select r.Field<string>(words1.ToList())); // to find out columns and value

but not working..?
namespace Drawing_Pad
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
        bool StartDrawing = false;

        bool IsOverCanvas = false;

        List<Color> colors = new List<Color>();

        Color selectedcolor = Colors.Black;

        Color red = Color.FromArgb(100, 200, 30, 30);

        Color orange = Color.FromArgb(100, 200, 100, 100);

        Color yellow = Color.FromArgb(100, 0, 200, 200);

        Color white = Color.FromArgb(255, 255, 255, 255);

        Color blue = Color.FromArgb(100, 30, 30, 200);

        Color green = Color.FromArgb(155, 30, 200, 30);

        Color black = Color.FromArgb(0, 0, 0, 0);

        Rectangle rect = null;

        Ellipse el = null;

        Polygon pol = null;

        UIElement elem = null;

        Line pointerline = null;

        int position = 0;

        bool Filling = false;

        int id = 0;

        bool Pressed = false;

        public MainPage()


            this.KeyDown += MainPage_KeyDown;

            this.PointerPressed += MainPage_PointerPressed;

            this.PointerEntered += MainPage_PointerEntered;

            this.PointerExited += MainPage_PointerExited;

            canvas.PointerEntered += Canvas_PointerEntered;

            canvas.PointerExited …
Help! I am using this prcomp function but in order to use it I must remove the label name. Is there a way where I can do this and keep the label names or remove the name and add them back so I can plot data with labels instead of numbers.

I am using R.

tables <- pcp[, 1]
data <- pcp[, -1]

pca <- prcomp(data)

plot.data <- data.frame(pca$x[, 1:2])
g <- ggplot(plot.data, aes(x = PC1, y = PC2)) + geom_point(colour = alpha("steelblue", 0.5), size = 3) + geom_text(label = 1:54, colour = "darkgrey", hjust = 1.5) + theme_bw()

Open in new window

I am getting this. Would like to plot names not numbers
here is the output
I am building a 2-tier Microsoft PKI infrastructure.
I have 1 off-line root CA and 2 issuing CA r running Windows server 2012 R2.  I want to have 1 active issuing CA an and the 2nd CA as a standby in a disaster recovery site.
How should I configure the CDP and AIA LOCATION?  Do I need a shared location where both CA’s can access the CRL information or can  I make the CDP and AIA  location local to the  issuing CA and rely on  a backup/restore  if I need to activate the 2nd  CA in DR.

Hi Everyone - thanks in advance for taking a look and helping.

I'm trying to build a UDF in VBA that handles cohort math for digital media biz.

It takes as input several 1d arrays, builds a 3d array, then sums along two dimensions of that built array to output a 1d array.

Here's what I wrote in R, which I need to translate into VBA.

maus <- function(
) {
  n <- length(nreach)
  mau.array <- array(rep(0, n * n * n), dim = c(n, n, n))
  for (i in seq(n)) {
    for (j in seq(n)) {
      for (k in seq(n)) {
        if (!(i <= (k - j + 1))) {
        mau.array[i, j, k] <-
          nreach[i] * 
          conversion[i] *
            (seasonal[((i + j) %% ds) + 1] * dispersion[j]) /
                c(seasonal[(((max(i, j) - 1) %% ds) + 1) : ds], rep(seasonal, floor(dl / ds)))[1 : dl] *
                dispersion[1 : dl]
          ) *
          retention[k - i - j + 2]

maus <- colSums(colSums(mau.array))

Open in new window

Also attached is a sample workbook where I've tried to start this effort so you can see how I would use the function in Excel.  

I don't know VBA so would appreciate help translating the function I wrote in R into Excel VBA.  

Thank you in advance I really appreciate the help.
Hello All Experts,
I am a student enthusiast in learning "Data Analytics" , which is the best platform to learn for FREE?
I want to Learn 'Data Science (Statistics)' & 'SAS/R' from scratch?
Any videos? Any websites? Any Blogs?


Satish Kumar G N
Hi All,
While using REF keyword in my logical file , i get compilation error - "Record name same as name of file being created"

DDS of LF -

*************** Beginning of data *************************************
                R USEREF                                                
                  ACCLVL    R               REFFLD(ACCLEVELID ACCOUNT)  
                  ACCORG    R               REFFLD(ACTORGCOD  ACCOUNT)  
                  ACCNUM    R               REFFLD(ACCOUNTNUM ACCOUNT)  
****************** End of data ****************************************

May i know why is that so ?
Issue is that when I set a different it doesn't update neither my texblock.Text nor my listbox.Items;

Help very appreciated:)

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using Windows.Services.Maps;
using Windows.Devices.Geolocation;

// The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409

namespace New_World_Map
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page


        List<string> stringlist = new List<string>();

        public MainPage()

            this.RightTapped += MainPage_RightTapped;

            mapscontrol.CenterChanged += Mapscontrol_CenterChanged;

            listbox.DoubleTapped += Listbox_DoubleTapped;

            listview.Items.Add("Zoom In");

            listview.Items.Add("Zoom Out");

            listview.Items.Add("Navigate North");

            listview.Items.Add("Navigate South");

What does it mean to be "Always On"?
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Team, need help resolving a laptop build that's continously failing at the bitlocker stage of task sequence, it's specific to just this model laptop, and I suspect it's related to some BIOS config.
Can you advise or direct me please,
Laptop Model = HP Elite X2 1012

Error in logs:

... r
Initial TPM state: 55
Creating TPM owner authorization value
Succeeded loading resource DLL 'C:\Windows\CCM\1033\TSRES.DLL'
Taking ownership of TPM
uStatus == 0, HRESULT=80070005 (e:\nts_sccm_release\sms\framework\tscore\tpm.cpp,645)
pTpm->TakeOwnership( sOwnerAuth ), HRESULT=80070005 (e:\nts_sccm_release\sms\client\osdeployment\bitlocker\bitlocker.cpp,522)
InitializeTpm(), HRESULT=80070005 (e:\nts_sccm_release\sms\client\osdeployment\bitlocker\bitlocker.cpp,1313)
ConfigureKeyProtection( keyMode, pwdMode, pszStartupKeyVolume ), HRESULT=80070005 (e:\nts_sccm_release\sms\client\osdeployment\bitlocker\bitlocker.cpp,1552)
pBitLocker->Enable( argInfo.keyMode, argInfo.passwordMode, argInfo.sStartupKeyVolume, argInfo.bWait ), HRESULT=80070005 (e:\nts_sccm_release\sms\client\osdeployment\bitlocker\main.cpp,382)
'TakeOwnership' failed (2147942405)
Failed to take ownership of TPM. Ensure that Active Directory permissions are properly configured
ccess is denied. (Error: 80070005; Source: Windows)
write.csv(df,file="~C:/Users/anitha/Documents/social_media analysis/socialmedia/tweets.csv",row.names=FALSE,append = TRUE)
Error in file(file, ifelse(append, "a", "w")) :
  cannot open the connection
Its supposed to be a map guider an accurate gps for car by giving the accurate route through roads car must do.

underlined line is what debug shows it as wrong.

any other

using System;

using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using Windows.Devices.Geolocation;
using Windows.Services.Maps;

// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409

namespace App75
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
        public MainPage()

            button.Tapped += Button_Tapped;

        private async void Button_Tapped(object sender, TappedRoutedEventArgs e)
            BasicGeoposition b1 = new BasicGeoposition();

            b1.Latitude = Convert.ToDouble(startpositionlatitude.Text);

            b1.Longitude = Convert.ToDouble(startpositionlongitude.Text);

            BasicGeoposition b2 = new BasicGeoposition();

I fairly new in R, I am doing some simple visualization in shiny app, I am trying to flip a bar chart downward using  scale_y_reverse() , it works well when I run my code in R console, but when I run it in shiny it does not flip the bar chart, below is my code in the server part:

output$trendbarPlot <- renderPlotly({
                              mydat <- mydatCopy %>% filter(Country ==input$Country)

attacksbarplot = ggplot(data=mydat,aes(x=as.factor(Year))) + geom_bar() + theme_bw(base_size=35) + xlab("") + ylab("") + theme(axis.text.x = element_blank(), axis.ticks=element_blank(),panel.grid.major=element_blank(),panel.grid.minor=element_blank(),panel.border=element_blank())  + scale_y_reverse()

attacksbarplotnol = ggplot(data=mydat,aes(x=as.factor(Year))) + geom_bar() + theme_bw(base_size=15) + xlab("") + ylab("") + theme(axis.text.x = element_blank(), axis.text.y = element_blank(), axis.ticks=element_blank(),panel.grid.major=element_blank(),panel.grid.minor=element_blank(),panel.border=element_blank()) +  scale_y_reverse()

attached file has the required flipped bar chart in shiny.

Does anyone knows how can I solve this issue?
My data:

Gage_number Latitude    Longitude   Date    Gage_1  Gage_2  Gage_3

1   35.02   -80.84  1/1/2002    0.23    0   0.7
2   35.03   -81.04  1/2/2002    0   0   0.2
3   35.06   -80.81  1/3/2002    3.2 2.1 0.1
This is just a subset of data. I around 50 gauge stations. I want to find spatial auto correction between my gauge stations for rain fall. Based on distance between them. I have created my distance matrix. But I don’t want to use any library in R. I want to do all steps in a function.

loc <- read.table("rain_data.txt",header=TRUE,fill=TRUE)  
gauge.dists <- as.matrix(dist(cbind(loc$Latitude, loc$Latitude))) #distance matrix
Now since distance between gauges is not uniform. I want to use a certain bin size to decide about distance lags.


If the distance between guage pair 1-2 is 1 meter then assign a distance lag of 1 and so on So Lag 1=intergage dist=1 meter. So Lag 5=intergage dist=5 meter After creating that matrix I will find autocorrelation between gauge pairs.

so for lag 1 intergage dist=1 for lag 5 intergage dist=5

Gage pair   date    RainA   RainB       Gage pair   date    RainA   RainB

1-2 1/1/2002    0.23    0       1-3 1/1/2002    0.23    0.7
1-2 1/2/2002    0   0       1-3 1/2/2002    0   0.2
1-2 1/3/2002    3.2 2.1     1-3 1/3/2002    3.2 0.1
I have a hard time translating it into loop or a function. Any ideas?
I'm looking for an experienced Mac OS X kernel programmer. If are one, or if you know of one, please drop me a message.

Here are the basic details of the project:
- Build a driver to detect if the machine is connected to my proxy.
- If not, block all access to the Internet (disable the network adapter?).
- It should be tamper proof

Currently, a gross estimate will suffice.

p.s. We currently employ a Widows solution for the above, now we're looking to expand to Mac OS X too.
Using Chiro8000 version and the program shut down today and will not open.  When I try to open the program, I get a message stating:   Root element is missing

Has anyone ever experienced this problem, and if so, how was it fixed?
I am bit new to R so I am not sure if this is possible or if its more difficult than I am assuming.

Objective: I want to find the correlation between Diagnosis codes. If patient #1 has condition X what the likelihood he will at some point also have condition Y as well.

Here is what I have:
136,337 Unique patient IDs (74,527 Female, 61,810 Male)
34,442 Unique Diagnosis that exists in my population
7,777,728 Unique observations

So my 2 questions are:
1. How should I layout my Table for R?
Right now I have the table columns as :
ID, SEX, Diagnosis

2. What should my Rscript look like in order to create correlation coefficients between all my diagnosis codes.  

FYI: Yes I also have a time stamp per diagnosis code but adding it now would be to adding more confusion to the confusion I already have.
hello guys iam working on making a software to connect to sabre API s from my program
but when I try to connect i have authorization issue i want to know how to connect to a Sabre API using Vb.net
[Live Webinar] The Cloud Skills Gap
[Live Webinar] The Cloud Skills Gap

As Cloud technologies come of age, business leaders grapple with the impact it has on their team's skills and the gap associated with the use of a cloud platform.

Join experts from 451 Research and Concerto Cloud Services on July 27th where we will examine fact and fiction.

I have 3 .bat files

And I want to convert them in single file through "BATCH TO EXE converter" also they should run as a single file. Kindly help
--fact :: Integer -> Integer 
fact 0 = 1
fact n = n * fact (n-1)

func x i  = ( x^oddTerm / (fact oddTerm))    --Have to add fromIntegral here before (fact oddTerm)
                 where oddTerm = 2*i - 1

Open in new window

If I don't add fromIntegral in the place commented above, ghci would give me this error message while running func
    • Ambiguous type variable ‘a0’ arising from a use of ‘it’
      prevents the constraint ‘(Fractional a0)’ from being solved.
      Probable fix: use a type annotation to specify what ‘a0’ should be.
      These potential instances exist:
        instance Fractional Double -- Defined in ‘GHC.Float’
        instance Fractional Float -- Defined in ‘GHC.Float’
        ...plus one instance involving out-of-scope types
        (use -fprint-potential-instances to see them all)
    • In the first argument of ‘print’, namely ‘it’
      In a stmt of an interactive GHCi command: print it

Open in new window

And without adding fromIntegral, if I uncomment the first line, it would not even compile.
Any answer would be much appreciated.
So I would like to make this program read a user inputted matrix instead of the one that is provided in the main function. Also, the limit to the 2d matrix should be more than 9, but no more than about 100 and should also be user defined.

The main function purpose that I had in mind would be something like:
int main(){
    int graph[V][V];
  printf("Enter number of towns: ");
  scanf("%d", V);
  printf("Enter distance matrix");
  scanf("%d", graph[V][V]);
  dijkstra(graph, 0);
return 0;}

Open in new window

which is giving me a great headache trying to write.. Any help would be greatly appreciated. Thank you.

// A C / C++ program for Dijkstra's single source shortest path algorithm.
// The program is for adjacency matrix representation of the graph
#include <stdio.h>
#include <limits.h>
// Number of vertices in the graph
#define V 9
// A utility function to find the vertex with minimum distance value, from
// the set of vertices not yet included in shortest path tree
int minDistance(int dist[], bool sptSet[])
   // Initialize min value
   int min = INT_MAX, min_index;
   for (int v = 0; v < V; v++)
     if (sptSet[v] == false && dist[v] <= min)
         min = dist[v], min_index = v;
   return min_index;
// A utility function to print the constructed distance array
int printSolution(int dist[], int n)
   printf("Vertex   Distance from Source\n");
   for (int i = 0; i < V; i++)
      printf("%d \t\t %d\n", i, dist[i]);
// Funtion that 

Open in new window

I work for the New Zealand Fire Service, and part of my role is to keep situational awareness over the region I cover.  I had the idea of making an automated tool that constantly monitored parameters and would give a notification when they exceed a threshold.  For instance, wind speeds, river levels, rain accumulation, traffic updates, temperature, relative humidity... many things!

Most of these things are available through websites, but do require me to physically look at them.  I had created a trial of my idea in Excel - it would open instances of IE and scrape the HTML on the page to retrieve certain numbers. I could tell it to check every 15 minutes or hour or whatever is suitable.

However, it doesn't seem like Excel would be a suitable platform to fully develop this... and finding various bits of HTML out of a page is prone to breaking, but may be my only option unless there is some kind of database access for these numbers.

Has anyone got any ideas on the best way I can make my idea happen? I'm assuming there would be something web-based I could do that could be doing something similar?
need to select recs. from GL database file that contains  a 4 position year and 2 position period fields.
Have to select across multiple years/periods ex. 2015 period 9 thru 2017 period 8.
Would like to take advantage of concatenating the fields using OPNQRY so that I can use the qryslt to select year/period range.
Hi Experts,

I am trying to generate a GS1-128 barcode string and I am having the issues with the check digit. My barcode has combination of subset B and C. I have tried to calculate based on calculations given in some websites. But I am not getting correct check digit.

Below mentioned are the examples of my barcodes.


Example of combination of subsets: Start C  FCN1  '4032764146'  Set B  '8+'  Set C '9900095212300'

Please help me how to calculate the check digit manually.


R is a programming language and environment used primarily for statistical data analysis.

Top Experts In