save

I would like to create a function to save plots (from ggplot ). I have many such plots so this will help me to work more effectively. Here is a data frame: ### creating data frame music <- c("Blues", "Hip-hop", "Jazz", "Metal", "Rock") number <- c(8, 7, 4, 6, 11) df.music <- data.frame(music, number) colnames(df.music) <- c("Music", "Amount") Then I create a plot: ### creating bar graph (this part is OK) myplot <- ggplot(data=df.music, aes(x=music, y=number)) + geom_bar(stat="identity") + xlab(colnames(df.music)[1]) + ylab(colnames(df.music)[2]) + ylim(c(0,11)) + ggtitle("Ulubiony typ muzyki

I'm trying to save a location and retrieve the location on a map afterward using Core Location, MapKit and Core Data frameworks. What I've done is I just made entity named POI and added properties such as latitude (double type), longitude (double type) with few others. Simply put, my app saves POI with two NSNumbers. (lat and long) but I feel like there must be a smarter way to store CLLocation than that. cheers. What you're doing is fine. You should save the latitude and longitude as doubles in Core Data. When you need to get the information again, get the doubles back from Core Data and

hi I'm trying to save the EditText widget values in the internal memory of the phone/tablet so that they can be retrieved automatically by the app when it closes or the activity stops. All off this will work using a save button.(The values of the widget are inputed by the user). You should use the shared preference ,shared preference is used to store the data in locally app whenever need you can access it . use this link https://www.journaldev.com/9412/android-shared-preferences-example-tutorial to use it. after on button click you can get the value . its help me If you want to save single

I'm a little bit confused because I don't know how I should interpret the tutorial here: http://developer.android.com/training/basics/data-storage/databases.html#DbHelper My code until now looks like this: public final class DatabaseContract { // To prevent someone from accidentally instantiating the contract class, // give it an empty constructor. public DatabaseContract() {} public static abstract class Table1 implements BaseColumns { public static final String TABLE_NAME = "nameOfTable"; public static final String COLUMN_NAME_COL1 = "column1"; public static final String COLUMN_NAME_COL2 =

I have pulled an image out of the UIImagePicker thingy, and I would like to temporarily save it to the sandbox environment, in either the documents folder, or some other similar equivalent. However, I do not know how to do this, please could someone help me? Thanks At the moment the image is a UIImage Saving an image: -(void)saveImage:(UIImage*)image{ NSString *imagePath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/someImageName.png"]; [UIImagePNGRepresentation(image) writeToFile:imagePath atomically:YES]; } Loading an image -(UIImage)loadImage{ NSString *imagePath =

I m able to save the plist file in Simulator but I m not able to save the Plist file in the device. Any suggestion. I m using NSString* dictPath = [[NSBundle mainBundle] pathForResource:@"Dictionary" ofType:@"plist"]; NSDictionary * dict = [[NSDictionary alloc] initWithContentsOfFile:dictPath]; to read the files and [dict writeToFile:dictPath atomically: YES]; to write to file. You can not write in to main bundle. You only can read from main bundle. If you want to write an file you need to place it in to the documents directory of your app. NSArray *paths = NSSearchPathForDirectoriesInDomains