I'm new to R. I tired importing dataset on R studio but the full page is not showing. I cant click on import. I tried installing other versions but its still not working.
Adetumi, try this hack to be able to move a window beyond the scope of the display boundary.
Notes:
The "Import Dataset" popup is still part of the RStudio IDE window, so the operation will move all of them together.
Because of #1, when we move it up in order to see the Import window, the upper-left corner of RStudio will become hidden, so knowing how many keys to press to initiate Move is important (the second time, you'll be doing it blind).
This is applicable to almost any windows application, not just RStudio.
Steps to move:
Press Alt-Space, you'll get a Windows Application Menu popup on the upper-left corner of the application.
Either (but not both):
Press M (for Move); or
Go Down twice, notice that Move is now highlighted. Press Enter.
In my windows, the mouse icon changes to a four-way icon, yours may be the same but almost certainly different from the normal arrow. At this point, use the four arrow keys to move the RStudio IDE and its Import Dataset window up until you can see the Import button.
When that is done, you will likely be unable to see the title bar of the application in order to move it (if mouse-moving is your normal thing). In this case, you can do the same thing, though this time you are doing it blind: one of Alt-Space M or Alt-Space Down Down Enter, then arrows to move the window.
I'm comfortable enough with keyboard shortcuts like this one, but there are other alternatives such as https://superuser.com/a/187442. (I often use Alt-Space N instead of M to minimize windows without the mouse. But then again, I'm very much a keyboard person, the mouse is rarely used while "working" on my code.)
Maybe I will not respond directly to your question but I can help you import the data another way round.
Open Notepad, paste your data there, save it as a .csv file and the in R use read.csv() function. It takes as an argument a string with full path to the file.
Related
There's this one issue with Rstudio that has been bothering me for a long while now and I cannot find a solution.
I like to use a lot of shortcuts and move around the editor with arrow keys and also scroll the editor using Ctrl + arrow shorts. The issue is that if the script contains a user defined function and I press Ctrl+Up/Down the cursor jumps to that function even if it's nowhere near. Like sometimes hundreds of lines. EXTREMELY ANNOYING!!! And I have looked through shortcuts and this is the only thing I have found:
There are no more different Ctrl+Up/Down shorts. So it doesn't seem to be a multi mapping issue. Also if I change this mapping to something else the annoying jumping still continues. I just want it to stop! Can anybody help? Doesn't it annoy anyone else?
The behaviour of RStudio where Ctrl+Up and Ctrl+Down step the cursor between function definitions is not configurable and cannot be changed. Oddly, the same pair of keystrokes were chosen to move the scroll bar.
Your only option to avoid the conflict is to redefine the scroll up and scroll down keystrokes to something else (e.g. F8/F9 or something) so that they not longer conflict with this hardcoded option. You can then control the scroll bar using the keystrokes you have chosen without it conflicting with the behaviour where it steps between functions.
If you find you have accidentally navigated to a function you didn't want using Ctrl+Down, you can return the cursor to where it was using the "Source Navigate Back" keystroke which defaults to Ctrl+F9.
IMO this is clearly a bug in RStudio. I would report it to them and hope that it is fixed for a future version.
when selecting large swaths of text from webpage I have to keep left mouse button pressed while searching for the selection's end. It would be nice if the browser would "remember" selection's start point and let me search for the ending point, e.g. by dragging the scrollbar downwards, without pressing the mouse button.
Does a plugin or other implementation of this sort already exist?
The answer to this is OS/Windowing system specific. In most/all systems there is a normal way to have the system perform what you are desiring. An add-on for Firefox is not required.
Windows:
If you click (button down and up, not button down and hold) at the start, or the end of the selection you desire then move the mouse to the other end of the desired selection (scrolling the page as needed to get the the other end) you can then hold the shift key down and click again. This will select the entire region from the first point you clicked to the second point you clicked while holding the shift key. You can adjust the selection by continuing to hold the shift key while doing any of: clicking on a different location, performing a click-drag movement, or using the keyboard cursor keys. This adjustment does not change the point at which you first clicked, just the second, end point.
It is also possible to use the control key to select individual items. This is possible in combination with clicks, double-clicks, and triple-clicks. An example would be to move your mouse around in this paragraph holding the ctrl key down while double-clicking on various words. Your selection will include just the words on which you double-clicked. In some instances, when using only a single ctrl-click to select from a discrete list (e.g. a Windows Explorer folder display), a second ctrl-click on the same item will de-select it. You can also combine the use of ctrl-click and shift-click to create more complex selections with the beginning of the shift-click selection starting at the most recent ctrl-click location.
The Mouse and Pointers page in the Windows Dev Center provides some fairly technical descriptions as guidelines for Windows developers.
Linux (using GNOME):
The interactions are similar to What was described for Windows, but a bit different. Section 10.1.2. Selecting Objects of the GNOME Human Interface Guidelines 2.2.3 provides a good description.
Apple/OSX:
The Macintosh Human Interface Guidelines describes how selections can be made on Apple machines.
I have been developing in zend studio and there is a feature I miss a lot in Xcode. When you are reading code in a main function and you want to go in a specific function to read something, you can click in the left area of your current line of code were your are, and a flag-mark appears in that line of code, so you can go anywere else in the code and it will be very easy to come back to that line of code you were before because there is a flag and you only have to click on it and you automatically go back. Does Anybody know a similar way to do this in Xcode?
Unfortunately, this feature was present in earlier versions of Xcode (up to Xcode3 IIRC) and was called "Bookmarks", but it was removed since then.
You can use breakpoints (and disable them) as a workaround, even if it's not perfect. I personally prefer using other tricks, like "Open Quickly" and named tabs.
Alternate trick 1 : "Open Quickly"
One trick is to use Command+Shift+O (or "File" menu > "Open Quickly") to quickly open a file. In the field that appears, you can type:
The name or parts of the name of a file.
Typing "MainViewController" will propose to jump to the MainViewController.h or MainViewController.m file.
Typing "MainVC" will work too, as well as "MainViewCtrl", as long as the order of the letters you type is the same as the full name.
Very handy to just type "ContTVCell" to open the ContactsTableViewCell.h file that is hidden deep in subgroups of my project for example
Similarly, you may also type the name or parts of the name of a symbol, especially a method name.
For example, typing tvcellforrow will list you all the definitions of -tableView:cellForRowAtIndexPath: it could find in your project and let to jump to the one you want
When typing (parts of) the name of a file, adding : followed by a number at the end will allow you to directly jump at the corresponding line
For example, typing mvc:50 will propose you to jump to line 50 of MainViewController.h or MainViewController.m
Another trick : using (named) tabs
Don't forget that you can open tabs in Xcode, which can be very handy in this kind of situation.
When you are editing a file at some interesting position, you can create a new tab to browse elsewhere and go at any other place… and then go back to your first tab to find the code where you left it at the time you switched to the other tab.
Don't forget that you can name your tabs (simply double-click on their title) to give them a more explicit title. You may then quite think of them as "named bookmarks" somehow
Likewise, don't forget that you can detach tabs in separate windows too, if you prefer (for example to keep them around and visible on your secondary screen while you edit another part of your code)
You can even combine this with the "Open Quickly" trick presented above: once you made the "Open Quickly" field appear and typed something into it, instead of just validating using the enter key:
use Alt+Shift+enter to let Xcode present you a small widget that let you choose where you want the file to open (in the current tab, in another tab, in the assistant editor, in a dedicated window…)
use Alt+enter to open the file using the alternate navigation defined in Xcode preferences (Xcode > Preferences > Navigation > Optional Navigation). By default, the behavior when opening a file while using the Alt key is to open the file in the Assistant Editor. Personally I changed that in my Xcode preferences as I prefer to make Xcode open the file in a separate tab instead, which makes Alt+clic much more useful.
Sure, all those tricks with "Open Quickly…" and "Tabs" do not replace the bookmarks feature that you are missing. But they are still nice alternate ways to jump quickly to any position in your code, even any specific line of any specific file in your project, wherever you are in Xcode (even without having to have the Project Navigator visible on the left part of your window), and let you have multiple editors in different tabs to go quickly back to a part of interest in your code
its on top of your editor i have added two pics just check them.
When you navigate to another place in Xcode, say, open a different file, or Command-click and jump to definition, you can go forward and back by swiping right or left on the trackpad with two fingers.
You can also use keyboard shortcuts: Ctrl+⌘+→ to go forward, or Ctrl+⌘+← to go back.
Finally, you can click triangular buttons at the top left in your edit area.
There is a go back button at the top left of the editor!
If that is not good enough, whar I do is misuse breakpoints to set flags in my code. The breakpoint navigator thus becomes a table of flags. It isn't much but there you are.
I've got emacs in front of me.
I've run a find-grep, and it's got many hits, which are displayed in a window. The file names are displayed in green as hyperlinks.
I make that the only window, with C-x 1.
If I click on a file name, the window splits vertically, and the file with the found text is displayed in the other window.
If I click on further filenames, then the new file replaces the old file, which is what I want to happen.
So far, so good...
However if I resize the windows, then emacs will periodically (when I click) split one of the two windows again, rendering the display difficult to read. It will then cycle opening new files between the two new windows. Occasionally it will open more windows and make the situation worse. If I close any of these new windows they just get reopened again.
In fact sometimes this perverse behaviour happens even if I don't resize anything. It just seems to happen more often if I do.
I would like emacs to stop buggering around and just have one find-grep window and one 'display' window, and always replace the display window with the new file. I would also like to be able to set these windows to the sizes that seem most convenient.
Is there any way to achieve this?
Or can anyone point me to an essay on how the whole (replace the contents of this window/replace the contents of a different window/create another window by splitting) thing works, so I can go and hack it sane.
Short fix:
Try doing this
(setq split-height-threshold nil
split-width-threshold nil)
This will prevent Emacs from splitting windows automatically (horizontally or vertically). This might be undesirable in other situations, but this should do the job. Try it for a week or so and see if it disrupts your flow.
Also, I found that if the point was in one of the windows, and I clicked on a link, the file opened up in the next window (if any).
So, if you want to make the file open in the right window (when you have more than one window), you can ensure that the point is in the window before the window you want.
Longer answer:
OK. I was able to reproduce the problem. The thing is the window showing the files is pretty big (wide or tall) because you resized it and Emacs sees that the width or height is greater than the respective threshold and splits it likewise. So, we have to either make the threshold higher or disallow the behaviour completely.
And, just to answer the last few questions:
To get current window - (selected-window)
To get next window - (next-window)
To select a window - (select-window foo-window)
To get the buffer of the current window - (current-buffer)
To get the buffer of some window - (window-buffer foo-window)
To set a buffer for a window - (set-window-buffer foo-window bar-buffer)
I'm sure you can hack together decent window/buffer management functions using these functions.
You can use C-h f to get more details on each of these functions.
Also check out the Elisp manual - http://www.chemie.fu-berlin.de/chemnet/use/info/elisp/elisp_26.html
I'm a NotePad++ user, new to TextMate.
There are some features that I really like in NP++ but couldn't figure out if TextMate support them.
Double click on a variable and have all instances highlighted
View 2 text windows side by side
Drag a file onto another opened Window
For this one, I don't know how to generate a screenshot ;-p. Basically, you can drag a file from Windows Explorer and drop it into NP++ to have it opened.
A lot of long time TextMate users are leaving TextMate land, actually. So, I'm not sure it's the right time to move to TextMate.
Emacs and Vim both do what you want and more. If you can afford the learning curve it's definitely worth it.
As for your question:
View 2 text windows side by side
You can have two or more windows for the same document. Assuming you are in a "project" right-click your file in the drawer and choose Open "foo.ext" in New Window. The two "views" contents are more or less in sync but doing cool things like columnar editing tends to break the syncing.
Due to how Mac OS X manages windows, the new window will probably be too large/too small and/or placed in a less than useful place. I use ShiftIt system wide to manage my windows and in such a case have them the same size side by side.
Double click on a variable and have all instances highlighted
What do you use this for? Is this visual highlight or non-contiguous selection?
Type ctrlw to select the word, then ⌘e to make the word your search term, then ⇧⌘f or Edit > Find > Find in Project… It will show all instances of the search term in another window. You can then "jump" to any occurence and do whatever you want.
If you only want to jump from occurence to occurence, select the word then type ⌘e then ⌘g to jump to the next occurence.
Another way is to type ctrls, a little text field appears at the bottom of your window where you can type a word and see its first occurence selected in real time. Repeatly typing ctrls will cycle through the occurences.
Drag a file onto another opened Window
You can drag & drop a file on TextMate's icon in the Dock. You can also right-click the file and choose Open with TextMate *or Open with…*. If you are in a "project" you can right-click and choose Add Existing Files…. Opening multiple files in TextMate will automatically create a "project" for you.
View 2 text windows side by side
I just tried this and it doesn't seem to recognize this functionality. the only time any sort of "add" icon came up was when I dragged the file into an open document and then released, but that resulted in adding the contents of the file into the document.
I just did a quick google search for "textmate split view" and it still doesn't seem to be supported according to some of the answers i found (one from macromates wiki).
Double click on a variable and have all instances highlighted
This also doesn't seem to be supported. This post suggests using the command + f (find), put the word into find, then command + g to jump to the next instance of that word.
There are definitely some things that can be added to textmate to make it more robust. If you are looking for something similar and are on a windows machine, you should check out e text editor. I loved that editor when I was working on a windows machine - split view is supported, but not sure about the highlighting. One thing that e also beats out textmate is the real time regular expression highlighting.