python 2.7 - Different colors for scatter plots based on origin of data -


i have list called 'samples', loading several images list 2 different folders, let's folder1 , folder2. convert list dataframe , plot them in 2d scatter plot. want scatter plot show contents folder1 red color , contents folder2 in blue color. how can accomplish this. code below:

    samples = []     folder1 = glob.iglob('/home/..../folder1/*.png')     folder2 = glob.iglob('/home/..../folder2/*.png')      fname in folder1:         img = misc.imread(fname)         samples.append((img[::2, ::2] / 255.0).reshape(-1))      fname in folder2:         img = misc.imread(fname)         samples.append((img[::2, ::2] / 255.0).reshape(-1))      samples = pd.dataframe(samples)      def do_iso(df):         sklearn import manifold         iso = manifold.isomap(n_neighbors=6, n_components=3)         iso.fit(df)         = iso.transform(df)         return      def plot2d(t, title, x, y):         fig = plt.figure()         ax = fig.add_subplot(111)         ax.set_title(title)         ax.set_xlabel('component: {0}'.format(x))         ax.set_ylabel('component: {0}'.format(y))         x_size = (max(t[:,x]) - min(t[:,x])) * 0.08         y_size = (max(t[:,y]) - min(t[:,y])) * 0.08         ax.scatter(t[:,x],t[:,y], marker='.',alpha=0.7)      plot2d(do_iso(samples), 'iso_chart', 0, 1)      plt.show()

it's pretty difficult without seeing arrays working with. plotting result of do_iso() function, creates array using sklearn.manifold.isomap.transform().

does function preserves ordering of elements in array? if so, things easy. first filling images folder1 , folder2, count number of items in folder1, , split array in 2 based on number (eg. nbfilesfolder1). 2 calls scatter:

ax.scatter(t[:nbfilesfolder1,x],t[:nbfilesfolder1,y], marker='.',alpha=0.7, c='red') ax.scatter(t[nbfilesfolder1:,x],t[nbfilesfolder1:,y], marker='.',alpha=0.7, c='blue')

Comments

Post a Comment

Popular posts from this blog

ubuntu - PHP script to find files of certain extensions in a directory, returns populated array when run in browser, but empty array when run from terminal -

i running os ububtu 16.04. ultimate goal able run php script cron job every minute. here php script located @ /var/www/html/tests/test/index.php : <?php $directorypath = $_server['document_root']."/tests/test/data/"; echo "directorypath: $directorypath<br><br>";//check $imagefilepathsarray = glob($directorypath . "*.{png,gif}", glob_brace); echo "<br><br>imagefilepathsarray: "; print_r($imagefilepathsarray);//check ?> when open php script in browser visiting url my-ip-address/tests/test/index.php , get: directorypath: /var/www/html/tests/test/data/ imagefilepathsarray:array( [0] => /var/www/html/tests/test/data/pic.png [1] => /var/www/html/tests/test/data/pic.gif ) before writing cron job in crontab file, need check if can run anywhere using terminal . opened ubuntu terminal @ /home/ location, , executed in terminal: sudo php /var/www/html/tests/test/index.php i got following out...
Read more

php - How can i create a user dashboard -

today have questions you, want create user dashboard site, include (obviously), users data, example -email -username -and others stuff how can information, , print them in html page? if can, how can these information via php sessions? shuld use session? example, if user login, , start new session ( session_start() ), how can data print in dashboard? should use php "project"? in advice, have day , thank time!
Read more

javascript - How to detect toggling of the fullscreen-toolbar in jQuery Mobile? -

i have jquery mobile page fixed full-screen toolbar, data-tap-toggle enabled. straight under toolbar have positioned banner should slide upwards when toolbar hiding , slide downward when toolbar showing. jquery mobile toggles toolbar applying , removing ui-fixed-hidden class - sadly, can't find in documentation of toolbar widget toggle , hide or show event that. how can detect when toolbar toggled, reposition banner? .banner { position: fixed; background-color: darkseagreen; top: 46px; min-height: 48px; width: 100%; text-align: center; line-height: 48px; } <!doctype html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> <link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css"> <script src="https://code.jquery.com/jquery-1....
Read more