r - Prevent lines from appearing twice in the legend -


i have asked question legend hour or ago align symbols in legend, new issue has emerged. add lines legend. ried following:

plot(1:4) legend("topleft",legend=expression(theta[1]==7%*%10^-4,theta[1]==0,                                    theta[2]==-14%*%10^-4,theta[2]==0),        lty=c(2,1),lwd=2,col=c("blue","grey"),bty="n",cex=1.2,ncol=2)

enter image description here

but lines should appear once per line: 1 blue line in first line , 1 grey line in second line. tried inserting zeros, lty=c(2,1,0,0), there appears space between thetas.

it should this:

enter image description here

has suggestion how can prevent lines appearing twice in legend?

actually lines appearing 4 times because have created 4 element expression vector. (the lines argument being recycled.) solution "protects" interior commas interpretation, althoug looking @ again see order not indended. should able fix have demonstrated how better incorporate commas in expressions:

plot(1:4) legend("topleft",legend=expression(theta[1]==7%*%10^-4*","~theta[1]==0,                                    theta[2]==-14%*%10^-4*","~theta[2]==0),        lty=c(2,1),lwd=2,col=c("blue","grey"),bty="n",cex=1.2,ncol=2)

you may need adjust location since impinges on fourth point, again not use case. consider using ncol=1.

enter image description here

response edit: didn't want commas spaces. add more tildes:

png(); plot(1:4) legend("topleft",legend=expression(theta[1]==7%*%10^-4~theta[2]==-14,                                    theta[1]==0 ~~~~~~~~~~~~theta[2]==0),  ncol=1, lty=c(2,1),lwd=2,col=c("blue","grey"),bty="n",cex=1.2);dev.off()

enter image description here


Comments

Post a Comment

Popular posts from this blog

javascript - jquery or ashx not working -

i using ajax file upload control. it creating html: <form action="/pages/handlers/asyncfileuploadhandler.ashx" method="post" enctype="multipart/form-data" target="ajaxuploader-iframe-1397144545"> <input type="hidden" name="type" value="mindvoice"> <input type="file" id="imagefile" style="display: block; width: 80%; margin-right: auto; margin-left: auto;"> </form> and target is: <iframe width="0" height="0" style="display:none;" name="ajaxuploader-iframe-1397144545" id="ajaxuploader-iframe-1397144545"></iframe> the form submitted using .submit() . my ashx handler: <%@ webhandler language="c#" class="asyncfileuploadhandler" %> using system; using system.web; using nettpals.core; public class asyncfileuploadhandler : ihttphandler { public void processre...
Read more

opencv - DataType<cv::detail::deriv_type>::depth what is it used for -

i wondering why line used in lucas kanade tracker in opencv: datatype<cv::detail::deriv_type>::depth can explain me? in opencv, depth of mat refers type of data contained in mat 's data buffer. represented integer values correspond given data type. these integers commonly abstracted appropriate macro definition (e.g. uchar data represented macro cv_8u ). cv::datatype type-traits class provides method obtain corresponding integer value without having memorize macro means data type. there few cases user code needs use datatype::depth . more common datatype::type . a simple example shows 1 possible use of datatype::depth : cv::mat uchar_data = cv::mat::ones(3, 3, cv_8uc1); cv::mat float_data; uchar_data.convertto(float_data, cv::datatype<float>::depth); // ^^ equivalently replaced // cv_32f macro float_data.at<float>(0,1) += 0.5f; std::cout << float_data << std::endl;...
Read more

python 3.x - Mapping specific letters onto a list of words -

can please suggest approach write piece of codes automatically maps letter in letter_str onto dic_key (a dict key string type contains dashes match length of words in word_lst)? so, mapping occurs if letter appears in every words in list @ same position no matter how many words in list. if no letter appears @ position words in word list new_dic_key '----'. please see examples below thanks word_lst = ['ague', 'bute', 'byre', 'came', 'case', 'doze'] dic_key = '----' letters_str ='abcdefghijklmnopqrstuvwxyz' new_dic_key = '---e' if word_list = ['bute', 'byre'] new_dic_key = 'b--e' or word_list = ['drek', 'drew', 'dyes'] new_dic_key = 'd-e-' if words in word_list of same length code give want: word_list = ['drek', 'drew', 'dyes'] cols = [] in range(len(word_list[0])): cols.append([]) word in ...
Read more